Measurement of the masses and widths of the Ï‚c (2455)+ and Ï‚c (2520)+ baryons

Date Issued
01-09-2021
Author(s)
Yelton, J.
Adachi, I.
Ahn, J. K.
Aihara, H.
Al Said, S.
Asner, D. M.
Atmacan, H.
Aulchenko, V.
Aushev, T.
Ayad, R.
Babu, V.
Bahinipati, S.
Behera, P.
Belous, K.
Bennett, J.
Bessner, M.
Bhardwaj, V.
Bhuyan, B.
Bilka, T.
Biswal, J.
Bozek, A.
BraÄ ko, M.
Branchini, P.
Browder, T. E.
Budano, A.
Campajola, M.
ÄŒervenkov, D.
Chang, M. C.
Chang, P.
Chekelian, V.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, H. E.
Cho, K.
Cho, S. J.
Choi, S. K.
Choi, Y.
Choudhury, S.
Cinabro, D.
Cunliffe, S.
Das, S.
Dash, N.
De Nardo, G.
De Pietro, G.
Dhamija, R.
Di Capua, F.
Dingfelder, J.
DoleŽal, Z.
Dong, T. V.
Epifanov, D.
Ferber, T.
Ferlewicz, D.
Fulsom, B. G.
Garg, R.
Gaur, V.
Gabyshev, N.
Garmash, A.
Giri, A.
Goldenzweig, P.
Graziani, E.
Gu, T.
Gudkova, K.
Hadjivasiliou, C.
Hara, T.
Hartbrich, O.
Hayasaka, K.
Hayashii, H.
Hou, W. S.
Hsu, C. L.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Jacobs, W. W.
Jia, S.
Jin, Y.
Joo, K. K.
Kaliyar, A. B.
Kang, K. H.
Kato, Y.
Kiesling, C.
Kim, C. H.
Kim, D. Y.
Kim, K. H.
Kim, S. H.
Kim, Y. K.
Kinoshita, K.
Kodyš, P.
Konno, T.
Korobov, A.
Korpar, S.
Kovalenko, E.
KriŽan, P.
Kroeger, R.
Krokovny, P.
Kuhr, T.
Kulasiri, R.
Kumara, K.
DOI
Abstract
Using 980 fb-1 of data collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we report the measurements of the masses, and the first measurements of the instrinsic widths, of the ςc(2455)+ and ςc(2520)+ charmed baryons. We find M(ςc(2455)+)-M(Λc+)=166.17±0.05-0.07+0.16 MeV/c2, Γ(ςc(2455)+)=2.3±0.3±0.3 MeV/c2, M(ςc(2520)+)-M(Λc+)=230.9±0.5-0.1+0.5 MeV/c2, and Γ(ςc(2520)+)=17.2-2.1-0.7+2.3+3.1 MeV/c2, where the uncertainties are statistical and systematic, respectively. These measurements can be used to test models of the underlying quark structure of the ςc states.
Volume
104