Joseph Comfort
Emeritus Professor,
Emeritus College
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Phone: 480-965-6377
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PSF 425 TEMPE, AZ 85287-1504
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Long Bio
Joseph Comfort was Professor Emeritus of physics. He passed away in 2024. His most recent projects included fundamental experiments aimed at looking for physics beyond the Standard Model (SM). At the new J-PARC accelerator complex in Japan, Professor Comfort and his group were pursuing the KOTO experiment to measure the exceedingly small branching ratio of neutral kaons into neutral pions and two neutrinos. The rate is directly sensitive to the parameter in the Standard Model that gives CP violation, which underlies the very large matter/antimatter asymmetry observed in the universe. Deviations from the SM prediction will be evidence for various types of new physics. An analogue experiment with positive kaons and pions, called ORKA, has received Stage 1 approval at Fermilab. Professor Comfort was also part of a lepton universality experiment, involving the ratio of positive pion decay to positrons and muons, with exceptionally high precision. Prior to these activities, Comfort studied the structure of baryons through the excitation and decay of their excited states with pion and kaon beams and the Crystal Ball spectrometer at the Brookhaven National Laboratory. Studies related to the possible deformed shape of the proton were also made at the MIT Bates laboratory with electron beams. Pion charge-exchange reactions on nuclei and the proton were studied for many years at both BNL and the LAMPF facility in Los Alamos. These included innovative experiments with polarized and oriented targets.
Education
PhD. Yale University
Publications
- D. Blyth, M. Gibson, D. Mcfarland, and J.R. Comfort. Flash ADC data processing with correlation coefficients. Nuclear Instruments and Method in Physics Research aA (2014).
- M. Togawa for the KOTO Collaboration. Status of KOTO Experiment at J-PARC. J. Phys. Conf. Ser (2014).
- Joseph Comfort for the KOTO Collaboration. The Music of KOTO: $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. Proceedings of Science (2012).
- Joseph Comfort for the ORKA Collaboration. ORKA, The Golden Kaon Experiment: Precision measurement of $K^+ \rightarrow \pi^+ \nu \bar{\nu}$. Proceedings of Science (2012).
- K. Shiomi et al. Measurement of $K_L^0$ flux at the J-PARC neutral-kaon beam line. Nucl. Instrum. Phys. Res. A (2012).
- Monica Tecchio, Jon Ameel, Mircea Bogdan, Myron Campbell, Joseph Comfort, Craig Harabedian, Eito Iwai, Shumin Li, Jiasen Ma, Duncan McFarland, Angela Steinmann, Yasuyuki Sujiyama, and Yau Wah. The Data Acquisition System for the KOTO Detector. Physics Procedia (2012).
- R. Ogata et al. Study of the $K^0_L \to \pi^0\pi^0\nu\bar{\nu}$ decay. Phys. Rev. D (2011).
- J. K. Ahn, Y. Akune, V. Baranov, K. F. Chen, J. Comfort, M. Doroshenko,,* Y. Fujioka, Y. B. Hsiung, T. Inagaki, S. Ishibashi, N. Ishihara, H. Ishii, E. Iwai, T. Iwata, I. Kato, S. Kobayashi, S. Komatsu, T. K. Komatsubara, A. S. Kurilin, E. Kuzmin, A. Lednev, H. S. Lee, S.Y. Lee, G.Y. Lim, J. Ma, T. Matsumura, A. Moisseenko, H. Morii, T. Morimoto, Y. Nakajima, T. Nakano, H. Nanjo, N. Nishi, J. Nix, T. Nomura, M. Nomachi, R. Ogata, H. Okuno, K. Omata, G. N. Perdue, S. Perov, S. Podolsky, S. Porokhovoy, K. Sakashita, T. Sasaki, N. Sasao, H. Sato, T. Sato, M. Sekimoto, T. Shimogawa, T. Shinkawa, Y. Stepanenko, Y. Sugaya, A. Sugiyama, T. Sumida, S. Suzuki, Y. Tajima, S. Takita, Z. Tsamalaidze, T. Tsukamoto, Y. C. Tung, Y.W. Wah, H. Watanabe, M. L. Wu, M. Yamaga, T. Yamanaka, H.Y. Yoshida, Y. Yoshimura, and Y. Zheng. Experimental Study of the Decay $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. Phys. Rev. D (2010).
- T. Shimogawa, for the J-PARC E14 K0TO Collaboration. Design of the Neutral $K_L^0$ Beamline for the K0TO Experiment. Nucl.\ Instrum.\ Phys.\ Res.\ A (2010).
- A. Aguilar-Arevalo, M. Blecher, D.A. Bryman, J. Comfort, J. Doornbos, L. Doria, A. Hussein, N. Ito, S. Kettell, L. Kurchaninov, C. Malbrunot, G.M. Marshall, T. Numao, R. Poutissou, A. Sher, B. Walker, and K. Yamada. High Purity Pion Beam at TRIUMF. Nucl. Instrum. Phys. Res. A (2009).
- D. Mekterovi\'{c}, I. Supek, V. Abaev, V. Bekrenev, C. Bircher, W.J. Briscoe, R.V. Cadman, M. Clajus, J.R. Comfort, K. Craig, D. Grosnick, D. Isenhower, M. Jerkins, M. Joy, N. Knecht, D.D. Koetke, N. Kozlenko, A. Kulbardis, S. Kruglov, G. Lolos, I.V. Lopatin, D.M. Manley, R. Manweiler, A. Maru\v{s}i\'{c}, S. McDonald, B.M.K. Nefkens, J. Olmsted, Z. Papandreou, D. Peaslee, J. Petersn, N. Phaisangittisakul, S.N. Prakhov, J.W. Price, A.F. Ramirez, M.E. Sadler, A. Shafi, H. Spinka, S. Stanislaus, A. Starostin, H.M. Staudenmaier, I. Strakovsky, W.B. Tippens and S. Watson. Differential Cross Sections of the Charge-exchange Reaction $\pi^- p \rightarrow \pi^0 n$ in the Momentum Range from 103 to 178 MeV/c. Phys. Rev. C (2009).
- T.D.S. Stanislaus, V.V. Abaev, D. Allen, C.E. Allgower, J. Alyea, M.A. Bates, V.S. Bekrenev, W.J. Briscoe, R.V. Cadman, J.R. Comfort, R. Corliss, K. Craig, A. Gibson, R. Greene, D. Grosnick, D. Isenhower, T.E. Kasprzyk, N. Knecht, D.D. Koetke, N.G. Kozlenko, S.P. Kruglov, A.A. Kulbardis, G. Lolos, I.V. Lopatin, D.M. Manley, R. Manweiler, A. Maru\v{s}i\'{c}, S. McDonald, J. Olmsted, Z. Papandreou, D.C. Peaslee, N. Phaisangittisakul, J.W. Price, A.F. Ramirez, M. Sadler, S. Schlombohm, A. Shafi, H. Spinka, H.M. Staudenmaier, I.I. Strakovsky, I. Supek, J. Thoms, and S. Wolf. Measurement of the Total Cross Section of the Reaction $K^- p \rightarrow \Sigma^0 \gamma$ between 514 and 750 MeV/c. Phys. Rev. C (2009).
- Y.C. Tung, Y.B. Hsiung, M.L. Wu, K.F. Chen, J.K. Ahn, Y. Akune, V. Baranov, J. Comfort, M. Doroshenko, Y. Fujioka, T. Inagaki, S. Ishibashi, N. Ishihara, H. Ishii, E. Iwai, T. Iwata, I. Kato, S. Kobayashi, T.K. Komatsubara, A.S. Kurilin, E. Kuzmin, A. Lednev, H.S. Lee, S.Y. Lee, G.Y. Lim, J. Ma, T. Matsumura, A. Moisseenko, H. Morii, T. Morimoto, T. Nakano, H. Nanjo, J. Nix, T. Nomura, M. Nomachi, R. Ogata, H. Okuno, K. Omata, G. N. Perdue, S. Podolsky, K. Sakashita, T. Sasaki, N. Sasao, H. Sato, T. Sato, M. Sekimoto, T. Shinkawa, Y. Sugaya, A. Sugiyama, T. Sumida, S. Suzuki, Y. Tajima, S. Takita, Z. Tsamalaidze, T. Tsukamoto, Y. Wah, H. Watanabe, M. Yamaga, T. Yamanaka, H.Y. Yoshida, Y. Yoshimura, and Y. Zheng. Search for a Light Pseudoscalar Particle in the Decay $K_L^0 \rightarrow \pi^0 \pi^0 X$. Phys. Rev. Letters (2009).
- Chloe Malbrunot for the PIENU Collaboration. Measurement of pi -> e nu / pi -> mu nu Branching Ratio. Proceedings of Science (2009).
- Hajime Nanjo for the E14/KOTO Collaboration. J-PARC E14 K0TO experiment for K^0_L -> pi^0 nu bar{nu}. Proceedings of Science (2009).
- Hideki Morii for the E391a Collaboration. Search for the K^0_L -> pi^0 nu bar{nu} at E391a Experiment. Proceedings of Science (2009).
- Risa Ogata for the E391a Collaboration. Search for X(214) in K^0_L -> pi^0 pi^0 X (X -> mu^+ mu^-). Proceedings of Science (2009).
- Takahiko Masuda for the E14/KOTO Collaboration. CsI Calorimeter and low power PMT base for KOTO experiment. Proceedings of Science (2009).
- Tetsushi Shimogawa for the E14/KOTO Collaboration. Design of the neutral K^0_L beamline for the J-PARC E14 KOTO experiment. Proceedings of Science (2009).
- Y. C. Tung for the E391a Collaboration. Search for a Light Pseudoscalar Particle in the Decay K^0_L -> pi^0 pi^0 X at E391a Experiment. Proceedings of Science (2009).
- Yoko Yanagida and Hiroki Yoshimoto for the E14/KOTO Collaboration. Reusing KTeV CsI crystals for J-PARC KOTO experiment. Proceedings of Science (2009).
- Yosuke Maeda for the E14/KOTO Collaboration. Beam Hole Photon Veto For J-PARC K$^O$TO experiment. Proceedings of Science (2009).
- J.K. Ahn, Y. Akune, V. Baranov, K.F. Chen, J. Comfort, M. Doroshenko, Y. Fujioka, Y.B. Hsiung, T. Inagaki, S. Ishibashi, N. Ishihara, H. Ishii, E. Iwai, T. Iwata, I. Kato, S. Kobayashi, T.K. Komatsubara, A.S. Kurilin, E. Kuzmin, A. Lednev, H.S. Lee, S.Y. Lee, G.Y. Lim, J. Ma, T. Matsumura, A. Moisseenko, H. Morii, T. Morimoto, T. Nakano, H. Nanjo, J. Nix, T. Nomura, M. Nomachi, H. Okuno, K. Omata, G.N. Perdue, S. Podolsky, K. Sakashita, T. Sasaki, N. Sasao, H. Sato, T. Sato, M. Sekimoto, T. Shinkawa, Y. Sugaya, A. Sugiyama, T. Sumida, S. Suzuki, Y. Tajima, S. Takita, Z. Tsamalaidze, T. Tsukamoto, Y.C. Tung, Y.W. Wah, H. Watanabe, M.L. Wu, M. Yamaga, T. Yamanaka, H. Y. Yoshida, and Y. Yoshimura. Search for the Decay $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. Phys. Rev. Letters (2008).
- R. Manweiler, R. V. Cadman, H. Spinka, V.V. Abaev, D. Allen, C.E. Allgower, J. Alyea, M.A. Bates, V.S. Bekrenev, W.J. Briscoe, M. Clajus, J.R. Comfort, R. Corliss, K. Craig, A. Gibson, R. Greene, D. Grosnick, D. Isenhower, T.E. Kasprzyk, N. Knecht, D.D. Koetke, N.G. Kozlenko, S.P. Kruglov, A.A. Kulbardis, G. Lolos, I.V. Lopatin, D.M. Manley, A. Maru\v{s}i\'{c}, S. McDonald, J. Olmsted, Z. Papandreou, D.C. Peaslee, N. Phaisangittisakul, A.F. Ramirez, M. Sadler, A. Shafi, T.D.S. Stanislaus, H.M. Staudenmaier, I.I. Strakovsky, I. Supek, J. Thoms, W.B. Tippens, and S. Wolf. Measurement of the $K^- p \rightarrow \Sigma^0 \pi^0$ reaction between 514 and 750 MeV/c. Phys. Rev. C \vol{77}, 015205 (2008).
- S. Prakhov, B.M.K. Nefkens, C.E. Allgower, V. Bekrenev, W.J. Briscoe, J.R. Comfort, K. Craig, D. Grosnick, D. Isenhower, N. Knecht, D. Koetke, A. Koulbardis, N. Kozlenko, S. Kruglov, G. Lolos, I. Lopatin, D.M. Manley, R. Manweiler, A. Marusic, S. McDonald, J. Olmsted, Z. Papandreou, D. Peaslee, and N. Phaisangittisakul. Measurement of the Invariant Mass Spectrum for the Two Photons from the $\eta\rightarrow\pi^{0} \gamma \gamma$ Decay. Phys. Rev. C (2008).
- B Walker, J Figgins, Joseph Comfort. A framework for Monte Carlo simulation calculations in geant4. Nucl. Instrum. Methods A (2006).
- D Jaffe, K Lo, Joseph Comfort, M Sivertz. Comparison of Inclusive Particle Production in 14.6-GeV/c Proton-Nucleus Collisions with Simulation. Nucl. Instrum. Methods B (2006).
- J Figgins, B Walker, Joseph Comfort. An XML description of detector geometries for geant4. Nucl. Instrum Methods A (2006).
- A Starostin, K Craig, D Grosnick, D Isenhower, N Knecht, D Koetke, N Kozlenko, S Kruglov, A Kulbardis, G Lolos, I Lopatin, S Prakhov, D Manley, R Manweiler, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, B Nefkens, M Sadler, A Shafi, H Spinka, T Stanislaus, H Staudenmaier, I Supek, W Tippens, V Abaev, C Allgower, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort. Measurement of $\pi^- p \rightarrow \pi^0 n$ in the Vicinity of the $\eta$ Threshold. Phys. Rev. C (2005).
- B Nefkens, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, R Manweiler, S Prakhov, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, A Shafi, C Allgower, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. Search for the Forbidden Decays $\eta \rightarrow 3\gamma$ and $\eta \rightarrow \pi^0 \gamma$ and the Rare Decay $\eta \rightarrow \pi^0 \pi^0 \gamma \gamma$. Phys. Rev. C (2005).
- S Prakhov, D Grosnick, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, B Nefkens, R Manweiler, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, C Allgower, A Shafi, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Strakovsky, I Supek, W Tippens, R Workman, R Arndt, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig. Measurement of $\pi^- p \rightarrow \eta n$ from Threshold to $p_{\pi^-} = 747$ MeV/$c$. Phys. Rev. C (2005).
- S Prakhov, G Huber, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, B Nefkens, R Manweiler, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, C Allgower, A Shafi, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. Measurement of the Branching Ratio for $\eta \rightarrow \pi^0 \gamma \gamma$ Decay. Phys. Rev. C (2005).
- A Shafti, M Clajus, Joseph Comfort, K Craig, D Grosnick, D Isenhower, N Knecht, D Koetke, A Kulbardis, N Kozlenko, S Kruglov, S Prakhov, G Lolos, I Lopatin, D Manley, R Manweiler, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, I Strakovsky, J Price, A Ramirez, M Sadler, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, R Workman, W Briscoe, B Nefkens, C Allgower, R Arndt, V Bekrenev, C Bennhold. Measurement of Inverse Pion Photoproduction at Energies Spanning the $N(14440)$ Resonance. Phys. Rev. C (2004).
- J Olmsted, D Grosnick, D Isenhower, N Knecht, D Koetke, N Kozlenko, S Kruglov, A Kulbardis, G Lolos, I Lopatin, R Manweiler, S Prakhov, A Marusic, S McDonald, B Nefkens, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, A Shafi, D Manley, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Strakovsky, I Supek, W Tippens, C Allgower, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig. Does the $\Sigma(1580)\frac{3}{2}^-$ Resonance Exist?. Phys. Letters (2004).
- M Sadler, M Clajus, Joseph Comfort, K Craig, M Daugherity, B Draper, D Grosnick, S Hayden, J Huddleston, D Isenhower, M Jenkins, A Kulbardis, M Joy, N Knecht, D Koetke, N Kozlenko, S Kruglov, T Kycia, G Lolos, I Lopatin, D Manley, R Manweiler, V Abaev, A Marusic, S McDonald, B Nefkens, J Olmsted, Z Papandreou, D Peaslee, J Peterson, N Phaisangittisakul, S Prakhov, J Price, C Allgower, A Ramirez, C Robinson, A Shafi, H Spinka, S Stanislaus, A Starostin, H Staudenmaier, I Strakovsky, I Supek, W Tippens, A Barker, V Bekrenev, W Briscoe, R Cadman, C Carter. Differential Cross Section of the Charge-Exchange Reaction $\pi^- p \rightarrow \pi^0 n$ in the Momentum Range from 148 to 323 MeV/$c$. Phys. Rev. C (2004).
- R Meier, K Fohl, E Friedman, J Grater, P Hautle, G Hofman, J Konter, S Mango, J Patzold, M Pavan, G Wagner, M Croni, F von Wrochem, R Bilger, B van den Brandt, J Breitschopf, H Clement, Joseph Comfort, H Denz, A Erhardt. Low Energy Analyzing Powers in Pion-Proton Elastic Scattering. Phys. Letters (2004).
- R Peterson, D Koetke, A Kulbardis, G Lolos, V Lopatin, D Manley, R Manweiler, A Maru?si´, S McDonald, B Nefkens, J Olmsted, C Allgower, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, D Prull, A Ramirez, M Sadler, A Shafi, A Shafi, T Stanislaus, V Bekrenev, HM Staudenmaier, I Strakovsky, I Supek, A Starostin, W Briscoe, Joseph Comfort, K Craig, D Grosnick, D Isenhower, N Knecht. y Scaling in Quasifree Pion-Single-Charge Exchange. Phys. Rev (2004).
- R Peterson, D Koetke, A Kulbardis, G Lolos, V Lopatin, D Manley, R Manweiler, A Marusic, S McDonald, B Nefkens, J Olmsted, C Allgower, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, D Prull, A Ramirez, M Sadler, A Shafi, H Spinka, T Stanislaus, V Bekrenev, A Starostin, H Staudenmaier, I Strakovsky, I Supek, W Briscoe, Joseph Comfort, K Craig, D Grosnick, D Isenhower, N Knecht. $y$ Scaling in Quasifree Pion-Single-Charge Exchange. Phys. Rev. C (2004).
- S Prakhov, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, R Manweiler, B Nefkens, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, A Shafi, C Allgower, H Spinka, S Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. Measurement of $\pi^- p \rightarrow \pi^0\pi^0 n$ from Threshold to $p_{\pi^-} = 750$ MeV/$c$. Phys. Rev. C (2004).
- S Prakhov, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, R Manweiler, B Nefkens, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, A Shafi, C Allgower, H Spinka, S Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. Reaction $K^- p \rightarrow \pi^0 \pi^0 \Lambda$ from $p_{K^-}$ = 514 to 750 MeV/$c$. Phys. Rev. C (2004).
- S Prakhov, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, R Manweiler, B Nefkens, A Marusic, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, A Shafi, C Allgower, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. $K^-p \rightarrow \pi^0\pi^0\Sigma^0$ at $p_{K^-}$=514-750 MeV/$c$ and Comparison with Other $\pi^0\pi^0$ Production. Phys. Rev. C (2004).
- 2 G Dodson, C Vellidis, CN INakagawa, D Barkhuff, D Rowntree, D Tieger, D Margaziotis, E Six, F Casagrande, G Peterson, G Warren, A Dooley, G CTschalaer, J Calarco, J Chen, J Shaw, J AYoung, K Dow, M Farkhondeh, M Pavan, M Distler, N Sparveris, A Hotta, N Kaloskamis, R Alarcon, R Hicks, R Miskimen, S Georgakopoulos, S Gilad, S Kowalski, S Stiliaris, S Williamson, S Soong, A JSarty, T Tamae, T Zwart, W Bertozzi, W Turchinetz, X Jiang, Z Zhou, Joseph Comfort, A Karabarbounis, A Ramirez, A Bernstein, C Kunz, C Mertz. Measurement of the transverse-longitudinal cross sections in the p(~e, e0p)0 reaction in the region. Phys. Lett (2003).
- A Starostin, K Craig, D Grosnick, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, B Nefkens, R Manweiler, A Maruv, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, S Prakhov, J Price, A Ramirez, D Manley, M Sadler, A Shafi, H Spinka, T Stanislaus, H Staudenmaier, I Supek, W Tippens, V Abaev, C Allgower, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort. Measurement of the $\pi^- p \rightarrow 3\pi^0 n$ Total Cross Section from Threshold to 0.75 GeV/$c$. Phys. Rev. C (2003).
- Chad Bircher, Joseph Comfort. Measurements of Pion-Nucleon charge exchange at Low Energy. Bull. Am. Phys. Soc (2003).
- Joseph Comfort, I Koch, S Kullander. Multipole Analyses of $\pi^0\pi^0$ Production with Protons and Pions. Bull. Am. Phys. Soc (2003).
- Joy Michael, Joseph Comfort. Momentum calibration of pion beam for the Crystal Ball. Bull. Am. Phys. Soc (2003).
- K Craig, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, R Manweiler, Joseph Comfort, A Marui, S McDonald, B Nefkens, J Olmsted, Z Papandreou, D Peaslee, N haisangittisakul, S Prakhov, J Price, M Pulver, C Allgower, A Ramirez, M Sadler, A Shafi, H Spinka, S Stanislaus, A Starostin, I Supek, H taudenmaier, W Tippens, V Bekrenev, E Berger, W Briscoe, M Clajus, B Draper, D Grosnick. Dynamics of the $\pi^- p \rightarrow \pi^0\pi^0 n$ Reaction for $p_{\pi^-} < 750$ MeV/$c$. Phys. Rev. Letters (2003).
- M Borgh, D Grosnick, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, D Manley, S Prakhov, R Manweiler, A Maruv, S McDonald, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, J Price, A Ramirez, M Sadler, B Nefkens, A Shafi, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Supek, W Tippens, C Allgower, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig. Search for $K^- p \rightarrow \pi^0 \pi^0\ pi^0 \Lambda$ from Threshold to $p_{K^-} = 740$ MeV/$c$. Phys. Rev. C (2003).
- N Sparveris, M Distler, G Dodson, S Dolfini, A Dooley, K Dow, M Farkhondeh, S Gilad, R Hicks, M Holtrop, A Hotta, R Alarcon, X Jiang, N Kaloskamis, A Karabarbounis, S Kowalski, C Kunz, D Magaziotis, C Mertz, R Milner, R Miskimen, I Nakagawa, D Barkhuff, C Papanicolas, M Pavan, G Peterson, A Ramirez, D Rowntree, A Sarty, J Shaw, E Six, S Soong, E Stiliaris, A Bernstein, D Tieger, C Tschal{ae}r, W Turchinetz, C Vellidis, G Warren, A Young, J Zhao, Z-L Zhou, T Zwart, W Bertozzi, J Calarco, F Casagrande, J Chen, Joseph Comfort. Measurement of the $R_{LT}$ Response Function for $\pi^0$ Electroproduction at $Q^2 = 0.070$ (GeV/$c$)$^2$ in the $N \rightarrow \Delta$ Transition. Phys. Rev. C (2003).
- A Bernstein, C Tschalær, C Vellidis, C Papanicolas, D Dale, D Jordan, D Rowntree, D Tieger, DJ JMandeville, E Tsentalovich, F Casagrande, A Dooley, G Peterson, G Warren, G MODistler, I Nakagawa, J Calarco, J Chen, J Shaw, J Zhao, K Dow, K Joo, A Hotta, K Kirkpatrick, L Weinstein, M Epstein, M Farkhondeh, M Holtrop, M Pavan, N Liyanage, N Sparveris, P Bourgeois, R Alarcon, A Ramirez, R Beck, R Hicks, R Milner, R Miskimen, S ?Sirca, S Dolfini, S Georgakopoulos, S Gilad, S Kowalski, S Stave, A Young, S Stiliaris, S Soong, S Williamson, S ESix, T Botto, T McIlvain, T Tamae, T Zwart, W Bertozzi, W Boeglin, A Sarty, W Turchinetz, X Jiang, Y Sato, Z Zhou, Joseph Comfort, A NKaloskamis, C Kunz, C Mertz. Performance of a Compact Detector Package for the Out-of-Plane Spectrometer System. Nucl. Instrum. Methods Phys. Res (2002).
- D Manley, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, I Lopatin, R Manweiler, A Maru?si´c, V Abaev, S McDonald, B Nefkens, J Olmsted, Z Papandreou, D Peaslee, N Phaisangittisakul, S Prakhov, J Price, A Ramirez, M Sadler, C Allgower, A Shafi, H Spinka, T Stanislaus, A Starostin, H Staudenmaier, I Strakovsky, I Supek, W Tippens, V Bekrenev, W Briscoe, M Clajus, Joseph Comfort, K Craig, D Grosnick. Properties of the (1670)1/2- Resonance. Phys. Rev. Lett (2002).
- A Starostin, M Pulver, W Tippens, C Wong, D Isenhower, M Sadler, C Allgower, H Spinka, Joseph Comfort, K Craig, A Ramirez, B Nefkens, W Briscoe, A Shafi, D Manley, J Olmsted, H Staudenmaier, D Peaslee, V Bekrenev, A Koulbardis, N Kozlenko, S Kruglov, E Berger, I Lopatin, N Knecht, G Lolos, Z Papandreou, I Supek, D Grosnick, D Koetke, R Manweiler, S Stanislaus, M Clajus, A Maru?si´c, S McDonald, N Phaisangittisakul, S Prakhov, J Price. Measurement of K-p ! near Threshold. Phys. Rev (2001).
- T Stanislaus, A Gibson, D Grosnick, G Huber, T DIsenhower, N Knecht, A Koulbardis, N Kozlenko, S Kruglov, T Kycia, I GJLolos, D Koetke, D Manley, R Manweiler, A Maru?si´c, S McDonald, B Nefkens, J Olmsted, Z Papandreou, D Peaslee, R Peterson, N Phaisangittisakul, C Allgower, M Pulver, A Ramirez, M Sadler, A Shafi, I ?Slaus, H Spinka, A Starostin, H Staudenmaier, J ISupek, W Tippens, V Bekrenev, K Benslama, E Berger, M WJBriscoe, Joseph Comfort, K Craig. Measurement of Neutron Detection Efficiencies in NaI using the Crystal Ball Detector. Nucl. Instrum. Methods Phys (2001).
- W Tippens, D Grosnick, B Holstein, G Huber, D Isenhower, N Knecht, D Koetke, A Koulbardis, N Kozlenko, S Kruglov, G Lolos, CE SPrakhov, I Lopatin, D Manley, R Manweiler, A Maru?si´c, S McDonald, B Nefkens, J Olmsted, Z Papandreou, JW NPhaisangittisakul, M Pulver, V Bekrenev, A Ramirez, M Sadler, A Shafi, H Spinka, S Stanislaus, A Starostin, H Staudenmaier, E Berger, W Briscoe, M Clajus, Joseph Comfort, K Craig, A Efendiev. Determination of the Quadratic Slope Parameter in ! 30 Decay. Phys. Rev. Lett (2001).
Research Activity
- Comfort,Joseph R*. Detector RD for the ORKA Experiment. BROOKHAVEN NATL LABORATORY(8/3/2013 - 9/30/2015).
- Comfort,Joseph R*. Search for New Physics in Neutral Kaon Decays. DOE-CHICAGO(7/15/2011 - 4/30/2016).
- Comfort,Joseph R*. Development of the KOTO Experiment at J-Parc. UNIV OF MICHIGAN(9/1/2009 - 8/31/2011).
- Comfort,Joseph R*. Development of Monte Carlo Simulations of the KOPIO Experiment. SUNY STONY BROOK(6/16/2005 - 6/30/2007).
- Comfort,Joseph R*. RSVP Advanced Planning. NEW YORK UNIV(7/1/2004 - 6/30/2007).
- Comfort,Joseph R*. SIMULATION STUDIES WITH THE WASA DETECTOR. NSF-MPS(9/1/2003 - 8/31/2005).
- Comfort,Joseph R*. BARYON STRUCTURES & HADRON INTERACTIONS. NSF-MPS(6/15/2001 - 5/31/2004).
- Comfort,Joseph R*. BARYON STRUCTURES AND HADRON INTERACTIONS. NSF-MPS(11/15/2000 - 10/31/2002).
- Comfort,Joseph R*, Alarcon,Ricardo O. SPIN ORIENTED STUDIES OF THE NUCLEON & NUCLEAR SYSTEMS. NSF-MPS(6/1/1995 - 5/31/2000).
- Comfort,Joseph R*. SPIN-ORIENTED STUDIES OF THE NUCLEON & NUCLEAR SYSTEMS. NSF-MPS(5/18/1992 - 12/31/1995).
- Comfort,Joseph R*. FUNDAMENTAL INTERACTIONS IN THE NUCLEAR MEDIUM (PHYSICS). NSF(3/1/1989 - 8/31/1992).
- Comfort,Joseph R*. RESEARCH IN EXPERIMENTAL MEDIUM ENERGY NUCLEAR PHYSICS. NSF(3/1/1986 - 7/31/1989).
Courses
2026 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
2025 Fall
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2025 Summer
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2025 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
2024 Fall
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2024 Summer
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
| PHY 792 | Research |
2024 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
2023 Fall
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2023 Summer
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
| PHY 792 | Research |
2023 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
| PHY 799 | Dissertation |
2022 Fall
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2022 Summer
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
| PHY 792 | Research |
2022 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
2021 Fall
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
2021 Summer
| Course Number | Course Title |
|---|---|
| PHY 792 | Research |
| PHY 792 | Research |
2021 Spring
| Course Number | Course Title |
|---|---|
| PHY 495 | Project Research |
| PHY 792 | Research |
| PHY 799 | Dissertation |
Presentations
- Joseph Comfort. Reduction of event size. KOTO DAQ Workshop (Jul 2014).
- Joseph Comfort. Correlation Coefficient Primer: Offline and Online. KOTO Collaboration Meeting (Oct 2013).
- Joseph Comfort. Future DAQ. KOTO DAQ Workshop (Jul 2013).
- Joseph Comfort. High Compression Methods. KOTO Collaboration Meeting (Feb 2013).
- Zhe Wang for the ORKA Collaboration. ORKA, the Golden Kaon Experiment: Precision measurement of $K^+ \rightarrow \pi^+ \nu \bar{\nu}$ and other ultra-rare processes. 20th Internat. Conf. on Supersymmetry and Unification of Fundamental Interactions (SUSY 2012) (Aug 2012).
- Yee Bob Hsiung for the KOTO Collaboration. Status and Plan of KOTO experiment at J-Parc. 20th Internat. Conf. on Supersymmetry and Unification of Fundamental Interactions (SUSY 2012) (Aug 2012).
- Zhe Wang for the ORKA Collaboration. ORKA, the Golden Kaon Experiment: Precision measurement of $K^+ \rightarrow \pi^+ \nu \bar{\nu}$ and other ultra-rare processes. 20th Internat. Conf. on Supersymmetry and Unification of Fundamental Interactions (SUSY 2012) (Aug 2012).
- Joseph Comfort for the KOTO Collaboration. The Music of KOTO: $K_L^0 \rightarrow \pi^0 \nu \bar{\nu}$. XIth International Conference on Heavy Quarks and Leptons, Prague, Czech Republic, June 11-15 (Jun 2012).
- Joseph Comfort for the ORKA Collaboration. ORKA, The Golden Kaon Experiment: Precision measurement of $K^+ \rightarrow \pi^+ \nu \bar{\nu}$. XIth International Conference on Heavy Quarks and Leptons, Prague, Czech Republic, June 11-15 (Jun 2012).
- Joseph Comfort. Event rates for June and beyond. KOTO Collaboration Meeting (May 2012).
- Jiasen Ma on behalf of the KOTO Collaboration. The KOTO Experiment at J-Parc. Invited Talk at the April 2012 APS Meeting in Atlanta, GA (Apr 2012).
- Joseph Comfort. Beam profiles by FLUKA. KOTO Collaboration Meeting (Aug 2011).
- Joseph Comfort. Why did Anti-Matter Disappear? The K0TO Experiment. Department Colloquium (Mar 2011).
- Joseph Comfort, Matt Gibson, and David Blyth. Mapping CsI Crystals to ADCs. KOTO Collaboration Meeting (Feb 2011).
- Joseph Comfort, Matt Gibson, and David Blyth. CsI correlation coefficient analysis. KOTO Collaboration Meeting (Feb 2011).
- Joseph Comfort. Beam Parameterization. KOTO Collaboration Meeting (Feb 2011).
- Joseph Comfort. Beamline Simulation. K0TO (E14) Collaboration Meeting (May 2010).
- Joseph Comfort, with Duncan McFarland. FPGA Programming. K0TO (E14) Collaboration Meeting (May 2010).
- Joseph Comfort. Full Beamline Simulations with Fluka. E14 Collaboration Meeting (Aug 2009).
- Comfort, Joseph. Halo Neutrons with FLUKA. E391a/E14 Collaboration Meeting (Oct 2008).
- Comfort, Joseph. Design of the Beam Line. E391a/E14 Collaboration Meeting (Oct 2008).
- Comfort, Joseph. Neutron and K-long productions by FLUKA. E391a/E14 Collaboration Meeting (Nov 2007).
- Comfort, Joseph. Simulation of the E391 and E14 beam lines. E391a/E14 Collaboration Meeting (Apr 2007).
- Comfort, Joseph. E14 Target and Beamline Simulation with Fluka. E391a/E14 Collaboration Meeting (Apr 2007).
- Comfort, Joseph. E391a Target Simulation with Fluka. E391a/E14 Collaboration Meeting (Apr 2007).
- Comfort, Joseph. Comparisons of Monte Carlo codes. E391a/E14 Collaboration Meeting (Dec 2006).
- Figgins, Jeremy, Walker, Benjamin, Comfort, Joseph. XML Based Detector Description for Monte Carlo Simulations. Four Corners Meeting 4CF05 of the American Physical Society (Oct 2005).
Service
- Committee on Committees, Member (2013 - Present)
- Bylaws Committee, Chair (2012 - Present)
- Bylaws Committee, Chair (2012 - Present)
- Bylaws Committee, Chair (2012 - Present)
- Quality of Instruction, Chair (2012 - Present)
- Quality of Instruction, Chair (2012 - Present)
- Research and Creative Activities Committee, Chair (2012 - 2015)
- Research and Creative Activities Committee, Member (2012 - 2015)
- Research and Creative Activities Committee, Member (Spring); Chair (Fall) (2012 - 2015)
- Quality of Instruction, Chair (2012 - 2013)
- CASEnergy Coalition (Clean and Safe Energy), Web Article Author (2011 - 2011)
- Research and Creative Activites Committee, Chair (2008 - 2011)
- Research and Creative Activities Committee, Chair (2008 - 2011)
- Research and Creative Activities Committee, Member (2008 - 2011)
- Arizona Board of Regents, Observer (2008 - 2011)
- Arizona Faculties Council, Member (2008 - 2011)
- University Senate, President, Tempe Campus Academic Assembly (2008 - 2011)
- University Senate, Academic Council, and Executive Committee, President-Elect, Tempe Campus (2008 - 2011)
- ASU, Panelist (2011 - 2011)
- University Senate, Chair, Tuition Remission Task Force (2010 - 2010)
- University Senate, Chair, Bylaws Task Force (2009 - 2010)
- Research and Creative Activities Committee, Chair (2008 - 2010)
- Arizona Board of Regents, Observer (2008 - 2010)
- Arizona Faculties Council, Member (2008 - 2010)
- University Senate, President, Tempe Campus Academic Assembly (2008 - 2010)
- General Studies Council, Member (2008 - 2009)
- General Studies Council, Member (Senate rep.) (2008 - 2009)
- ICA Board (Intercollegiate Activities), Member (2008 - 2009)
- Intercollegiate Activities Board, Member (Senate rep.) (2008 - 2009)
- Senate Student-Faculty Policy Committee, Member (2008 - 2009)
- Student Faculty Policy Committee, Member (Senate rep.) (2008 - 2009)
- Undergraduate Student Senate, Academic Senate Representative (2008 - 2009)
- Undergraduate Student Senate, University Senate Representative (2008 - 2009)
- University Senate, Member, ACD Task Force (2008 - 2009)
- Graduate Exam Committee, Chair (2004 - 2009)
- Bylaws Committee (ad hoc), Chair (2007 - 2008)
- Senate Personnel Committee, Member (2007 - 2008)
- Academic Senate, Senator (2006 - 2008)
- Bylaws Committee (ad hoc), Chair (2007 - 2008)
- Graduate Exam Committee, Member, Chair throughout 2006 and 2007 (2004 - 2007)
- Academic Senate Task Force on Classified Research, Member (2006 - 2007)
- DOE Nuclear Energy Research Advisory Committee, Member (1998 - 2006)
- Petroleum Club, Luncheon Speaker (2006)
- Academic Review Committee, Chair (2003 - 2005)
- Honeywell Fellows, Luncheon Speaker (2005)
- Colloquium Committee, Member (Spring) (2003 - 2005)
- Colloquium Committee, Chair (Spring); Member (Fall) (2004)
- Phoenix-Camelback Rotary Club, Luncheon Speaker (2004)
- Senate, Senator (2003 - 2004)
- Colloquium Committee, Chair (2003)
- University and CLAS Senates, Member (2003)