Measurements of the masses and widths of the Σc (2455)0 /++ and Σc (2520)0 /++ baryons

S. H. Lee, B. R. Ko, E. Won, A. Abdesselam, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, A. M. Bakich, A. Bala, V. Bansal, V. Bhardwaj, B. Bhuyan, G. Bonvicini, A. Bozek, T. E. Browder, D. Červenkov, A. Chen, B. G. CheonR. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. DoleŽal, Z. Drásal, A. Drutskoy, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, A. Frey, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, Y. M. Goh, B. Golob, H. Hayashii, X. H. He, Y. Hoshi, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, T. Iwashita, I. Jaegle, T. Julius, J. H. Kang, Y. Kato, T. Kawasaki, C. Kiesling, B. H. Kim, D. Y. Kim, J. B. Kim, J. H. Kim, M. J. Kim, K. Kinoshita, J. Klucar, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, T. Kuhr, T. Kumita, Y. J. Kwon, J. S. Lange, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, D. Matvienko, K. Miyabayashi, H. Miyata, A. Moll, T. Mori, R. Mussa, Y. Nagasaka, E. Nakano, M. Nakao, M. Nayak, E. Nedelkovska, N. K. Nisar, S. Nishida, O. Nitoh, S. Ogawa, S. Okuno, P. Pakhlov, G. Pakhlova, H. K. Park, T. K. Pedlar, T. Peng, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, E. RibeŽl, M. Ritter, M. Röhrken, A. Rostomyan, S. Ryu, H. Sahoo, T. Saito, K. Sakai, Y. Sakai, S. Sandilya, D. Santel, L. Santelj, T. Sanuki, Y. Sato, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sibidanov, Y. S. Sohn, E. Solovieva, S. Stanič, M. Starič, M. Steder, M. Sumihama, T. Sumiyoshi, U. Tamponi, K. Tanida, Y. Teramoto, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, S. Uno, C. Van Hulse, P. Vanhoefer, G. Varner, K. E. Varvell, A. Vinokurova, M. N. Wagner, C. H. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, Y. Yamashita, S. Yashchenko, Y. Yook, C. Z. Yuan, V. Zhilich, V. Zhulanov, A. Zupanc

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We present measurements of the masses and decay widths of the baryonic states Σc(2455)0/++ and Σc(2520)0/++ using a data sample corresponding to an integrated luminosity of 711fb-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider operating at the (4S) resonance. We report the mass differences with respect to the Λc+ baryon M(Σc(2455)0)-M(Λc+)=167.29±0.01±0.02MeV/c2, M(Σc(2455)++)-M(Λc+)=167.51±0.01±0.02MeV/c2, M(Σc(2520)0)-M(Λc+)=231.98±0.11±0.04MeV/c2, M(Σc(2520)++)-M(Λc+)=231.99±0.10±0.02MeV/c2,and the decay widths Γ(Σc(2455)0)=1.76±0.04-0.21+0.09MeV/c2, Γ(Σc(2455)++)=1.84±0.04-0.20+0.07MeV/c2,Γ(Σ c(2520)0)=15.41±0.41-0.32+0.20MeV/c2,Γ(Σc(2520)++)=14. 77±0.25-0.30+0.18MeV/c2,where the first uncertainties are statistical and the second are systematic. The isospin mass splittings are measured to be M(Σc(2455)++)-M(Σc(2455)0)=0.22±0.01±0.01MeV/c2 and M(Σc(2520)++)-M(Σc(2520)0)=0.01±0.15±0.03MeV/c2. These results are the most precise to date.

Original languageEnglish
Article number091102
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number9
DOIs
Publication statusPublished - 2014 May 22

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Measurements of the masses and widths of the Σc (2455)0 /++ and Σc (2520)0 /++ baryons'. Together they form a unique fingerprint.

Cite this