Measurement of the $\Lambda_c^+$ lifetime
High Energy Physics - Experiment
2025-10-14 v4
Abstract
An absolute measurement of the lifetime is reported using decays in events reconstructed from data collected by the Belle II experiment at the SuperKEKB asymmetric-energy electron-positron collider. The total integrated luminosity of the data sample, which was collected at center-of-mass energies at or near the resonance, is . The result, fs, is the most precise measurement to date and is consistent with previous determinations.
Cite
@article{arxiv.2206.15227,
title = {Measurement of the $\Lambda_c^+$ lifetime},
author = {Belle II Collaboration and F. Abudinén and L. Aggarwal and H. Ahmed and J. K. Ahn and H. Aihara and N. Akopov and A. Aloisio and N. Anh Ky and D. M. Asner and H. Atmacan and T. Aushev and V. Aushev and V. Babu and H. Bae and P. Bambade and Sw. Banerjee and S. Bansal and J. Baudot and M. Bauer and A. Baur and A. Beaubien and J. Becker and J. V. Bennett and E. Bernieri and F. U. Bernlochner and V. Bertacchi and M. Bertemes and E. Bertholet and M. Bessner and S. Bettarini and V. Bhardwaj and F. Bianchi and T. Bilka and D. Biswas and D. Bodrov and A. Bolz and G. Bonvicini and A. Bozek and M. Bračko and P. Branchini and R. A. Briere and T. E. Browder and A. Budano and S. Bussino and M. Campajola and L. Cao and G. Casarosa and C. Cecchi and M. -C. Chang and P. Chang and R. Cheaib and P. Cheema and C. Chen and Y. Q. Chen and Y. -T. Chen and B. G. Cheon and K. Chilikin and K. Chirapatpimol and H. -E. Cho and K. Cho and S. -J. Cho and S. -K. Choi and S. Choudhury and D. Cinabro and L. Corona and L. M. Cremaldi and S. Cunliffe and F. Dattola and E. De La Cruz-Burelo and S. A. De La Motte and G. De Nardo and M. De Nuccio and G. De Pietro and R. de Sangro and M. Destefanis and A. De Yta-Hernandez and R. Dhamija and A. Di Canto and F. Di Capua and J. Dingfelder and Z. Doležal and I. Domínguez Jiménez and T. V. Dong and M. Dorigo and K. Dort and D. Dossett and S. Dreyer and G. Dujany and M. Eliachevitch and D. Epifanov and P. Feichtinger and T. Ferber and D. Ferlewicz and T. Fillinger and G. Finocchiaro and K. Flood and A. Fodor and F. Forti and A. Frey and B. G. Fulsom and A. Gabrielli and E. Ganiev and M. Garcia-Hernandez and A. Gaz and A. Gellrich and G. Ghevondyan and R. Giordano and A. Giri and A. Glazov and B. Gobbo and R. Godang and P. Goldenzweig and W. Gradl and S. Granderath and D. Greenwald and T. Gu and Y. Guan and K. Gudkova and J. Guilliams and S. Halder and K. Hara and O. Hartbrich and K. Hayasaka and H. Hayashii and S. Hazra and C. Hearty and I. Heredia de la Cruz and M. Hernández Villanueva and A. Hershenhorn and T. Higuchi and M. Hohmann and T. Humair and T. Iijima and K. Inami and G. Inguglia and N. Ipsita and A. Ishikawa and S. Ito and R. Itoh and M. Iwasaki and Y. Iwasaki and P. Jackson and W. W. Jacobs and D. E. Jaffe and Q. P. Ji and Y. Jin and H. Junkerkalefeld and M. Kaleta and J. Kandra and K. H. Kang and R. Karl and G. Karyan and C. Kiesling and C. -H. Kim and D. Y. Kim and K. -H. Kim and Y. -K. Kim and H. Kindo and K. Kinoshita and P. Kodyš and T. Koga and S. Kohani and K. Kojima and A. Korobov and S. Korpar and E. Kovalenko and R. Kowalewski and T. M. G. Kraetzschmar and P. Križan and P. Krokovny and T. Kuhr and J. Kumar and R. Kumar and K. Kumara and T. Kunigo and Y. -J. Kwon and S. Lacaprara and T. Lam and L. Lanceri and J. S. Lange and M. Laurenza and R. Leboucher and S. C. Lee and P. Leitl and D. Levit and L. K. Li and S. X. Li and Y. B. Li and J. Libby and Z. Liptak and Q. Y. Liu and D. Liventsev and S. Longo and T. Lueck and C. Lyu and M. Maggiora and R. Maiti and S. Maity and R. Manfredi and E. Manoni and S. Marcello and C. Marinas and L. Martel and A. Martini and L. Massaccesi and M. Masuda and K. Matsuoka and D. Matvienko and J. A. McKenna and F. Meier and M. Merola and M. Milesi and C. Miller and K. Miyabayashi and G. B. Mohanty and N. Molina-Gonzalez and S. Moneta and H. Moon and H. -G. Moser and M. Mrvar and R. Mussa and I. Nakamura and M. Nakao and H. Nakayama and A. Narimani Charan and M. Naruki and Z. Natkaniec and A. Natochii and L. Nayak and M. Nayak and G. Nazaryan and C. Niebuhr and N. K. Nisar and S. Nishida and K. Nishimura and H. Ono and P. Oskin and E. R. Oxford and G. Pakhlova and A. Paladino and A. Panta and E. Paoloni and S. Pardi and K. Parham and H. Park and S. -H. Park and A. Passeri and T. K. Pedlar and I. Peruzzi and R. Peschke and R. Pestotnik and F. Pham and L. E. Piilonen and G. Pinna Angioni and P. L. M. Podesta-Lerma and T. Podobnik and S. Pokharel and L. Polat and C. Praz and S. Prell and E. Prencipe and M. T. Prim and H. Purwar and N. Rad and P. Rados and S. Raiz and M. Reif and S. Reiter and I. Ripp-Baudot and G. Rizzo and S. H. Robertson and J. M. Roney and A. Rostomyan and N. Rout and G. Russo and D. A. Sanders and S. Sandilya and A. Sangal and L. Santelj and Y. Sato and V. Savinov and B. Scavino and C. Schwanda and A. J. Schwartz and Y. Seino and A. Selce and K. Senyo and J. Serrano and C. Sfienti and C. P. Shen and T. Shillington and J. -G. Shiu and A. Sibidanov and F. Simon and R. J. Sobie and A. Soffer and A. Sokolov and E. Solovieva and S. Spataro and B. Spruck and M. Starič and S. Stefkova and R. Stroili and J. Strube and M. Sumihama and K. Sumisawa and W. Sutcliffe and S. Y. Suzuki and H. Svidras and M. Takahashi and M. Takizawa and U. Tamponi and S. Tanaka and K. Tanida and H. Tanigawa and N. Taniguchi and F. Tenchini and R. Tiwary and D. Tonelli and E. Torassa and N. Toutounji and K. Trabelsi and M. Uchida and K. Unger and Y. Unno and K. Uno and S. Uno and P. Urquijo and Y. Ushiroda and S. E. Vahsen and R. van Tonder and G. S. Varner and K. E. Varvell and A. Vinokurova and L. Vitale and V. Vobbilisetti and E. Waheed and H. M. Wakeling and E. Wang and M. -Z. Wang and X. L. Wang and A. Warburton and S. Watanuki and M. Welsch and C. Wessel and J. Wiechczynski and H. Windel and E. Won and X. P. Xu and B. D. Yabsley and S. Yamada and S. B. Yang and H. Ye and J. Yelton and J. H. Yin and K. Yoshihara and Y. Yusa and Y. Zhang and V. Zhilich and Q. D. Zhou and V. I. Zhukova and R. Žlebčík},
journal= {arXiv preprint arXiv:2206.15227},
year = {2025}
}
Comments
Accepted for publication in PRL