+eta+Sigma%281385%29%2B%22&type=SU">Lambda/c+ --> eta Sigma(1385)+, decay modes [Lambda/c+], mass: width, KEK-B, Lambda(1670): mass: measured, Lambda/c+ --> Lambda(1670) pi+, Lambda/c+: hadronic decay, Lambda/c+ --> eta Lambda pi+, Particle Physics Experiments, ddc:530, mass: measured [Lambda(1670)], Lambda, branching ratio [Lambda/c+], Lambda/c+: decay modes, Sigma0, branching ratio: ratio: measured, hadronic decay [Lambda/c+], Lambda/c+ --> eta Sigma0 pi+, electron positron: colliding beams, baryon, Sigma(1385), Lambda/c+: branching ratio, colliding beams [electron positron], ratio: measured [branching ratio], statistical, experimental results
| Popis: |
Physical review / D 103(5), 052005 (1-12) (2021). doi:10.1103/PhysRevD.103.052005
We report branching fraction measurements of four decay modes of the Λ+c baryon, each of which includes an η meson and a Λ baryon in the final state, and all of which are measured relative to the Λ+c→pK−π+ decay mode. The results are based on a 980 fb−1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e− collider. Two decays, Λ+c→ηΣ0π+ and Λ(1670)π+, are observed for the first time, while the measurements of the other decay modes, Λ+c→ηΛπ+ and ηΣ(1385)+, are more precise than those made previously. We obtain relative branching fractions of B(Λ+c→ηΛπ+)/B(Λ+c→pK−π+)=0.293±0.003±0.014, B(Λ+c→ηΣ0π+)/B(Λ+c→pK−π+)=0.120±0.006±0.010, B(Λ+c→Λ(1670)π+)×B(Λ(1670)→ηΛ)/B(Λ+c→pK−π+)=(5.54±0.29±0.73)×10−2, and B(Λ+c→ηΣ(1385)+)/B(Λ+c→pK−π+)=0.192±0.006±0.016. The mass and width of the Λ(1670) are also precisely determined to be 1674.3±0.8±4.9 MeV/c2 and 36.1±2.4±4.8 MeV, respectively, where the uncertainties are statistical and systematic, respectively.
Published by American Physical Society, Melville, NY |
| Jazyk: |
English |
| DOI: |
10.3204/pubdb-2021-01706 |
| DOI: |
10.1103/PhysRevD.103.052005 |
| Přístupová URL adresa: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae38bf4e31ed737b0cd42fa6713ccd0a |
| Rights: |
OPEN |
| Přírůstkové číslo: |
edsair.doi.dedup.....ae38bf4e31ed737b0cd42fa6713ccd0a |
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| Autor: |
Lee, J. Y., Tanida, K., Aushev, T., Lieret, K., Liptak, Z., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Ayad, R., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mussa, R., Nakano, T., Nakao, M., Natochii, A., Nayak, M., Niiyama, M., Babu, V., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Olsen, S. L., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Bahinipati, S., Pardi, S., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Behera, P., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Beleño, C., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seidl, R., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Bennett, J., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Bessner, M., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uglov, T., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Bhuyan, B., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Wehle, S., Bilka, T., Wiechczynski, J., Xu, X., Yabsley, B. D., Yan, W., Ye, Hua, Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Kato, Y., Biswal, J., Zhilich, V., Zhukova, V., Zhulanov., V., Belle Collaboration, Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Cervenkov, D., Chang, M.-C., Chang, P., Kim, S. K., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Yang, S. B., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Adachi, I., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Ahn, J. K., Hsu, C.-L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, C. W., Aihara, H., Joo, K. K., Kang, K. H., Karyan, G., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, S. H., Al Said, S., Kim, Y. J., Kim, Y.-K., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Asner, D. M., Kulasiri, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J. |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Physical review / D 103(5), 052005 (2021). doi:10.1103/PhysRevD.103.052005 |
| DOI: |
10.3204/pubdb-2021-01706 |
| Popis: |
Physical review / D 103(5), 052005 (1-12) (2021). doi:10.1103/PhysRevD.103.052005
We report branching fraction measurements of four decay modes of the Λ+c baryon, each of which includes an η meson and a Λ baryon in the final state, and all of which are measured relative to the Λ+c→pK−π+ decay mode. The results are based on a 980 fb−1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e− collider. Two decays, Λ+c→ηΣ0π+ and Λ(1670)π+, are observed for the first time, while the measurements of the other decay modes, Λ+c→ηΛπ+ and ηΣ(1385)+, are more precise than those made previously. We obtain relative branching fractions of B(Λ+c→ηΛπ+)/B(Λ+c→pK−π+)=0.293±0.003±0.014, B(Λ+c→ηΣ0π+)/B(Λ+c→pK−π+)=0.120±0.006±0.010, B(Λ+c→Λ(1670)π+)×B(Λ(1670)→ηΛ)/B(Λ+c→pK−π+)=(5.54±0.29±0.73)×10−2, and B(Λ+c→ηΣ(1385)+)/B(Λ+c→pK−π+)=0.192±0.006±0.016. The mass and width of the Λ(1670) are also precisely determined to be 1674.3±0.8±4.9 MeV/c2 and 36.1±2.4±4.8 MeV, respectively, where the uncertainties are statistical and systematic, respectively.
Published by American Physical Society, Melville, NY |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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