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

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

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+) = 166.1...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review. D 2021-09, Vol.104 (5), p.1, Article 052003
Hauptverfasser: 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., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, 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.
Format: Artikel
Sprache:eng
Schlagworte:
Baryons
Charm (particle physics)
High Energy Physics - Experiment
Physics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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 ± 0.0 5−0.07+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.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.104.052003