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Phys Rev Lett. 2021 Nov 19;127(21):211801. doi: 10.1103/PhysRevLett.127.211801.

Precise Measurement of the D^{0} and D^{+} Lifetimes at Belle II.

Physical review letters

F Abudinén, I Adachi, K Adamczyk, L Aggarwal, H Ahmed, H Aihara, N Akopov, A Aloisio, N Anh Ky, D M Asner, H Atmacan, V Aushev, V Babu, S Bacher, H Bae, S Baehr, S Bahinipati, P Bambade, Sw Banerjee, S Bansal, M Barrett, J Baudot, M Bauer, A Baur, J Becker, P K Behera, J V Bennett, E Bernieri, F U Bernlochner, M Bertemes, E Bertholet, M Bessner, S Bettarini, V Bhardwaj, F Bianchi, T Bilka, S Bilokin, D Biswas, A Bobrov, D Bodrov, A Bolz, A Bozek, M Bračko, P Branchini, N Braun, R A Briere, T E Browder, A Budano, S Bussino, M Campajola, L Cao, G Casarosa, C Cecchi, D Červenkov, M-C Chang, P Chang, R Cheaib, V Chekelian, C Chen, Y-T Chen, B G Cheon, K Chilikin, K Chirapatpimol, H-E Cho, K Cho, S-J Cho, S-K Choi, S Choudhury, D Cinabro, L Corona, L M Cremaldi, S Cunliffe, T Czank, F Dattola, E De La Cruz-Burelo, G de Marino, G De Nardo, G De Pietro, R de Sangro, M Destefanis, S Dey, A De Yta-Hernandez, A Di Canto, F Di Capua, J Dingfelder, Z Doležal, I Domínguez Jiménez, T V Dong, M Dorigo, K Dort, D Dossett, S Dubey, S Duell, G Dujany, P Ecker, D Epifanov, T Ferber, D Ferlewicz, G Finocchiaro, K Flood, A Fodor, F Forti, B G Fulsom, A Gabrielli, N Gabyshev, A Gaz, A Gellrich, G Giakoustidis, R Giordano, A Giri, A Glazov, B Gobbo, R Godang, P Goldenzweig, B Golob, W Gradl, E Graziani, D Greenwald, T Gu, Y Guan, K Gudkova, J Guilliams, C Hadjivasiliou, S Halder, K Hara, T Hara, O Hartbrich, K Hayasaka, H Hayashii, S Hazra, C Hearty, I Heredia de la Cruz, M Hernández Villanueva, A Hershenhorn, T Higuchi, E C Hill, H Hirata, M Hoek, M Hohmann, C-L Hsu, T Humair, T Iijima, K Inami, G Inguglia, A Ishikawa, R Itoh, M Iwasaki, Y Iwasaki, W W Jacobs, D E Jaffe, E-J Jang, S Jia, Y Jin, H Junkerkalefeld, H Kakuno, A B Kaliyar, J Kandra, K H Kang, R Karl, G Karyan, Y Kato, T Kawasaki, C Kiesling, C-H Kim, D Y Kim, Y-K Kim, Y Kim, T D Kimmel, K Kinoshita, P Kodyš, T Koga, S Kohani, T Konno, S Korpar, E Kovalenko, R Kowalewski, T M G Kraetzschmar, F Krinner, P Križan, P Krokovny, T Kuhr, J Kumar, M Kumar, R Kumar, K Kumara, S Kurz, A Kuzmin, Y-J Kwon, S Lacaprara, K Lalwani, T Lam, L Lanceri, J S Lange, M Laurenza, K Lautenbach, F R Le Diberder, S C Lee, P Leitl, D Levit, C Li, L K Li, J Libby, K Lieret, Z Liptak, Q Y Liu, D Liventsev, S Longo, T Lueck, C Lyu, R Manfredi, E Manoni, C Marinas, A Martini, T Matsuda, K Matsuoka, D Matvienko, J A McKenna, F Meier, M Merola, F Metzner, C Miller, K Miyabayashi, R Mizuk, G B Mohanty, N Molina-Gonzalez, H Moon, H-G Moser, M Mrvar, C Murphy, R Mussa, I Nakamura, K R Nakamura, M Nakao, H Nakazawa, Z Natkaniec, A Natochii, G Nazaryan, C Niebuhr, M Niiyama, N K Nisar, S Nishida, K Nishimura, S Ogawa, Y Onishchuk, H Ono, Y Onuki, P Oskin, E R Oxford, H Ozaki, P Pakhlov, A Paladino, T Pang, A Panta, E Paoloni, S Pardi, H Park, S-H Park, B Paschen, A Passeri, A Pathak, S Patra, S Paul, T K Pedlar, I Peruzzi, R Peschke, R Pestotnik, F Pham, M Piccolo, L E Piilonen, G Pinna Angioni, P L M Podesta-Lerma, T Podobnik, S Pokharel, G Polat, V Popov, C Praz, S Prell, E Prencipe, M T Prim, M V Purohit, H Purwar, N Rad, P Rados, S Raiz, S Reiter, M Remnev, I Ripp-Baudot, G Rizzo, L B Rizzuto, S H Robertson, J M Roney, A Rostomyan, N Rout, M Rozanska, D Sahoo, D A Sanders, S Sandilya, A Sangal, L Santelj, Y Sato, V Savinov, B Scavino, J Schueler, C Schwanda, A J Schwartz, Y Seino, A Selce, K Senyo, J Serrano, C Sfienti, J-G Shiu, B Shwartz, A Sibidanov, F Simon, R J Sobie, A Soffer, A Sokolov, E Solovieva, S Spataro, B Spruck, M Starič, S Stefkova, Z S Stottler, R Stroili, J Strube, M Sumihama, W Sutcliffe, S Y Suzuki, H Svidras, M Tabata, M Takizawa, U Tamponi, S Tanaka, K Tanida, H Tanigawa, N Taniguchi, F Tenchini, R Tiwary, D Tonelli, E Torassa, N Toutounji, K Trabelsi, T Tsuboyama, I Ueda, S Uehara, Y Uematsu, T Uglov, K Unger, Y Unno, K Uno, S Uno, P Urquijo, Y Ushiroda, Y V Usov, S E Vahsen, R van Tonder, G S Varner, A Vinokurova, L Vitale, A Vossen, E Waheed, H M Wakeling, E Wang, M-Z Wang, X L Wang, A Warburton, M Watanabe, M Welsch, C Wessel, J Wiechczynski, E Won, X P Xu, B D Yabsley, S Yamada, W Yan, S B Yang, H Ye, J Yelton, J H Yin, K Yoshihara, Y Yusa, L Zani, V Zhilich, Q D Zhou, X Y Zhou, V I Zhukova, R Žlebčík,

Affiliations

  1. INFN Sezione di Trieste, I-34127 Trieste, Italy.
  2. The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.
  3. High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  4. H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342, Poland.
  5. Panjab University, Chandigarh 160014, India.
  6. St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada.
  7. Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.
  8. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia.
  9. INFN Sezione di Napoli, I-80126 Napoli, Italy.
  10. Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy.
  11. Institute of Theoretical and Applied Research (ITAR), Duy Tan University, Hanoi 100000, Vietnam.
  12. Institute of Physics, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.
  13. Brookhaven National Laboratory, Upton, New York 11973, USA.
  14. University of Cincinnati, Cincinnati, Ohio 45221, USA.
  15. Taras Shevchenko National Univ. of Kiev, Kiev, Ukraine.
  16. Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany.
  17. Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  18. Indian Institute of Technology Bhubaneswar, Satya Nagar 751007, India.
  19. Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
  20. University of Louisville, Louisville, Kentucky 40292, USA.
  21. Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg, France.
  22. Indian Institute of Technology Madras, Chennai 600036, India.
  23. University of Mississippi, University, Mississippi 38677, USA.
  24. INFN Sezione di Roma Tre, I-00146 Roma, Italy.
  25. University of Bonn, 53115 Bonn, Germany.
  26. Institute of High Energy Physics, Vienna 1050, Austria.
  27. Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel.
  28. University of Hawaii, Honolulu, Hawaii 96822, USA.
  29. INFN Sezione di Pisa, I-56127 Pisa, Italy.
  30. Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy.
  31. Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India.
  32. INFN Sezione di Torino, I-10125 Torino, Italy.
  33. Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy.
  34. Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic.
  35. Ludwig Maximilians University, 80539 Munich, Germany.
  36. Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  37. Novosibirsk State University, Novosibirsk 630090, Russian Federation.
  38. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  39. National Research University Higher School of Economics, Moscow 101000, Russian Federation.
  40. J. Stefan Institute, 1000 Ljubljana, Slovenia.
  41. Faculty of Chemistry and Chemical Engineering, University of Maribor, 2000 Maribor, Slovenia.
  42. Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
  43. Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma, Italy.
  44. INFN Sezione di Perugia, I-06123 Perugia, Italy.
  45. Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy.
  46. Department of Physics, Fu Jen Catholic University, Taipei 24205, Taiwan.
  47. Department of Physics, National Taiwan University, Taipei 10617, Taiwan.
  48. Max-Planck-Institut für Physik, 80805 München, Germany.
  49. Iowa State University, Ames, Iowa 50011, USA.
  50. Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763, South Korea.
  51. Chiang Mai University, Chiang Mai 50202, Thailand.
  52. Korea Institute of Science and Technology Information, Daejeon 34141, South Korea.
  53. Yonsei University, Seoul 03722, South Korea.
  54. Gyeongsang National University, Jinju 52828, South Korea.
  55. Indian Institute of Technology Hyderabad, Telangana 502285, India.
  56. Wayne State University, Detroit, Michigan 48202, USA.
  57. Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583, Japan.
  58. Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360, Mexico.
  59. INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  60. Universidad Autonoma de Sinaloa, Sinaloa 80000, Mexico.
  61. Justus-Liebig-Universität Gießen, 35392 Gießen, Germany.
  62. School of Physics, University of Melbourne, Victoria 3010, Australia.
  63. McGill University, Montréal, Québec, H3A 2T8, Canada.
  64. Pacific Northwest National Laboratory, Richland, Washington, D.C. 99352, USA.
  65. Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy.
  66. INFN Sezione di Padova, I-35131 Padova, Italy.
  67. Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova, Italy.
  68. University of South Alabama, Mobile, Alabama 36688, USA.
  69. Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.
  70. Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany.
  71. Department of Physics, Technische Universität München, 85748 Garching, Germany.
  72. University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
  73. Tata Institute of Fundamental Research, Mumbai 400005, India.
  74. Niigata University, Niigata 950-2181, Japan.
  75. Nara Women's University, Nara 630-8506, Japan.
  76. Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2, Canada.
  77. University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada.
  78. Consejo Nacional de Ciencia y Tecnología, Mexico City 03940, Mexico.
  79. Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.
  80. School of Physics, University of Sydney, New South Wales 2006, Australia.
  81. Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan.
  82. Osaka City University, Osaka 558-8585, Japan.
  83. Indiana University, Bloomington, Indiana 47408, USA.
  84. Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443, China.
  85. Tokyo Metropolitan University, Tokyo 192-0397, Japan.
  86. Kyungpook National University, Daegu 41566, South Korea.
  87. Kitasato University, Sagamihara 252-0373, Japan.
  88. Soongsil University, Seoul 06978, South Korea.
  89. Korea University, Seoul 02841, South Korea.
  90. Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
  91. University of Victoria, Victoria, British Columbia, V8W 3P6, Canada.
  92. Malaviya National Institute of Technology Jaipur, Jaipur 302017, India.
  93. Punjab Agricultural University, Ludhiana 141004, India.
  94. Aix Marseille Université, CNRS/IN2P3, CPPM, 13288 Marseille, France.
  95. Liaoning Normal University, Dalian 116029, China.
  96. Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan.
  97. Instituto de Fisica Corpuscular, Paterna 46980, Spain.
  98. University of Miyazaki, Miyazaki 889-2192, Japan.
  99. Duke University, Durham, North Carolina 27708, USA.
  100. Kyoto Sangyo University, Kyoto 603-8555, Japan.
  101. Toho University, Funabashi 274-8510, Japan.
  102. Moscow Physical Engineering Institute, Moscow 115409, Russian Federation.
  103. Luther College, Decorah, Iowa 52101, USA.
  104. Okinawa Institute of Science and Technology, Okinawa 904-0495, Japan.
  105. ENEA Casaccia, I-00123 Roma, Italy.
  106. Yamagata University, Yamagata 990-8560, Japan.
  107. Institute for High Energy Physics, Protvino 142281, Russian Federation.
  108. Gifu University, Gifu 501-1193, Japan.
  109. Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan.
  110. Chiba University, Chiba 263-8522, Japan.
  111. J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  112. Meson Science Laboratory, Cluster for Pioneering Research, RIKEN, Saitama 351-0198, Japan.
  113. Showa Pharmaceutical University, Tokyo 194-8543, Japan.
  114. Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195, Japan.
  115. Soochow University, Suzhou 215006, China.
  116. University of Science and Technology of China, Hefei 230026, China.
  117. University of Florida, Gainesville, Florida 32611, USA.
  118. Institute for Advanced Research, Nagoya University, Nagoya 464-8602, Japan.

PMID: 34860075 DOI: 10.1103/PhysRevLett.127.211801

Abstract

We report a measurement of the D^{0} and D^{+} lifetimes using D^{0}→K^{-}π^{+} and D^{+}→K^{-}π^{+}π^{+} decays reconstructed in e^{+}e^{-}→cc[over ¯] data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The data, collected at center-of-mass energies at or near the ϒ(4S) resonance, correspond to an integrated luminosity of 72  fb^{-1}. The results, τ(D^{0})=410.5±1.1(stat)±0.8(syst)  fs and τ(D^{+})=1030.4±4.7(stat)±3.1(syst)  fs, are the most precise to date and are consistent with previous determinations.

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