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  • Ahn, J. K; Ky, N. Anh; Aushev, T; Bauer, M; Baur, A; Beaubien, A; Bertacchi, V; Bessner, M; Bianchi, F; Bilka, T; Bozek, A; Browder, T. E; Chang, M. -C; Chen, C; Chirapatpimol, K; Choi, S. -K; Choudhury, S; Cunliffe, S; De Pietro, G; Di Capua, F; Dingfelder, J; Dort, K; Dossett, D; Ferber, T; Finocchiaro, G; Flood, K; Gabrielli, A; Garcia-Hernandez, M; Gobbo, B; Gradl, W; Hara, K; Hershenhorn, A; Iijima, T; Inguglia, G; Ishikawa, A; Ito, S; Itoh, R; Kaleta, M; Kang, K. H; Karl, R; Karyan, G; Kiesling, C; Kim, Y. -K; Kodyš, P; Kohani, S; Kojima, K; Kraetzschmar, T. M. G; Kumar, R; Kunigo, T; Li, Y. B; Liptak, Z; Lyu, C; Meier, F; Milesi, M; Mohanty, G. B; Moon, H; Nakamura, I; Nayak, M; Nishida, S; Oxford, E. R; Paladino, A; Pestotnik, R; Pham, F; Podesta-Lerma, P. L. M; Podobnik, T; Pokharel, S; Polat, L; Praz, C; Prencipe, E; Prim, M. T; Purwar, H; Rad, N; Robertson, S. H; Russo, G; Sato, Y; Simon, F; Solovieva, E; Spruck, B; Stroili, R; Strube, J; Sutcliffe, W; Takahashi, M; Tamponi, U; Taniguchi, N; Tenchini, F; Uchida, M; Urquijo, P; Varvell, K. E; Vitale, L; Waheed, E; Wakeling, H. M; Wang, X. L; Warburton, A; Welsch, M; Wiechczynski, J; Yabsley, B. D; Ye, H; Yelton, J; Yoshihara, K; Zhilich, V

    KU ScholarWorks (The University of Kansas), 06/2022
    Journal Article

    Phys. Rev. Lett. 130, 071802 (2023) An absolute measurement of the $\Lambda^{+}_c$ lifetime is reported using $\Lambda_c^+\rightarrow pK^-\pi^+$ 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 $\Upsilon(4S)$ resonance, is $207.2~\mbox{fb}^{-1}$. The result, $\tau(\Lambda^{+}_c) = 203.20 \pm 0.89 \,\mathrm{(stat)} \pm 0.77 \,\mathrm{(syst)}$ fs, is the most precise measurement to date and is consistent with previous determinations.