First observation of B(s)(0) → J/ψη and B(s)(0) → J/ψη'

J Li; I Adachi; H Aihara; K Arinstein; D M Asner; V Aulchenko; T Aushev; A M Bakich; V Bhardwaj; B Bhuyan; M Bischofberger; A Bondar; A Bozek; M Bračko; O Brovchenko; T E Browder; M-C Chang; A Chen; P Chen; B G Cheon; R Chistov; K Cho; S-K Choi; Y Choi; J Dalseno; Z Doležal; A Drutskoy; S Eidelman; S Esen; J E Fast; V Gaur; A Garmash; Y M Goh; J Haba; T Hara; K Hayasaka; H Hayashii; Y Horii; Y Hoshi; W-S Hou; Y B Hsiung; H J Hyun; T Iijima; K Inami; A Ishikawa; R Itoh; M Iwabuchi; Y Iwasaki; T Iwashita; T Julius; J H Kang; P Kapusta; N Katayama; T Kawasaki; H J Kim; H O Kim; J B Kim; K T Kim; M J Kim; Y J Kim; K Kinoshita; B R Ko; N Kobayashi; P Kodyš; S Korpar; P Križan; P Krokovny; T Kuhr; R Kumar; A Kuzmin; Y-J Kwon; J S Lange; M J Lee; S-H Lee; Y Li; J Libby; C Liu; Y Liu; Z Q Liu; D Liventsev; R Louvot; D Matvienko; S McOnie; Y Miyazaki; R Mizuk; G B Mohanty; A Moll; T Mori; N Muramatsu; I Nakamura; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; K Nishimura; O Nitoh; S Ogawa; T Ohshima; S Okuno; S L Olsen; W Ostrowicz; G Pakhlova; C W Park; H K Park; K S Park; T K Pedlar; T Peng; R Pestotnik; M Petrič; L E Piilonen; M Prim; M Röhrken; S Ryu; H Sahoo; K Sakai; Y Sakai; T Sanuki; Y Sato; O Schneider; C Schwanda; A J Schwartz; K Senyo; O Seon; M E Sevior; M Shapkin; V Shebalin; C P Shen; T-A Shibata; J-G Shiu; F Simon; P Smerkol; Y-S Sohn; A Sokolov; S Stanič; M Starič; M Sumihama; T Sumiyoshi; S Tanaka; G Tatishvili; Y Teramoto; K Trabelsi; M Uchida; S Uehara; Y Unno; S Uno; P Urquijo; Y Usov; G Varner; K E Varvell; V Vorobyev; A Vossen; C H Wang; P Wang; M Watanabe; Y Watanabe; J Wicht; K M Williams; E Won; Y Yamashita; C Z Yuan; Z P Zhang; V Zhilich; A Zupanc; Belle Collaboration

doi:10.1103/PhysRevLett.108.181808

First observation of B(s)(0) → J/ψη and B(s)(0) → J/ψη'

Phys Rev Lett. 2012 May 4;108(18):181808. doi: 10.1103/PhysRevLett.108.181808. Epub 2012 May 3.

Authors

J Li¹, I Adachi, H Aihara, K Arinstein, D M Asner, V Aulchenko, T Aushev, A M Bakich, V Bhardwaj, B Bhuyan, M Bischofberger, A Bondar, A Bozek, M Bračko, O Brovchenko, T E Browder, M-C Chang, A Chen, P Chen, B G Cheon, R Chistov, K Cho, S-K Choi, Y Choi, J Dalseno, Z Doležal, A Drutskoy, S Eidelman, S Esen, J E Fast, V Gaur, A Garmash, Y M Goh, J Haba, T Hara, K Hayasaka, H Hayashii, Y Horii, Y Hoshi, W-S Hou, Y B Hsiung, H J Hyun, T Iijima, K Inami, A Ishikawa, R Itoh, M Iwabuchi, Y Iwasaki, T Iwashita, T Julius, J H Kang, P Kapusta, N Katayama, T Kawasaki, H J Kim, H O Kim, J B Kim, K T Kim, M J Kim, Y J Kim, K Kinoshita, B R Ko, N Kobayashi, P Kodyš, S Korpar, P Križan, P Krokovny, T Kuhr, R Kumar, A Kuzmin, Y-J Kwon, J S Lange, M J Lee, S-H Lee, Y Li, J Libby, C Liu, Y Liu, Z Q Liu, D Liventsev, R Louvot, D Matvienko, S McOnie, Y Miyazaki, R Mizuk, G B Mohanty, A Moll, T Mori, N Muramatsu, I Nakamura, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, K Nishimura, O Nitoh, S Ogawa, T Ohshima, S Okuno, S L Olsen, W Ostrowicz, G Pakhlova, C W Park, H K Park, K S Park, T K Pedlar, T Peng, R Pestotnik, M Petrič, L E Piilonen, M Prim, M Röhrken, S Ryu, H Sahoo, K Sakai, Y Sakai, T Sanuki, Y Sato, O Schneider, C Schwanda, A J Schwartz, K Senyo, O Seon, M E Sevior, M Shapkin, V Shebalin, C P Shen, T-A Shibata, J-G Shiu, F Simon, P Smerkol, Y-S Sohn, A Sokolov, S Stanič, M Starič, M Sumihama, T Sumiyoshi, S Tanaka, G Tatishvili, Y Teramoto, K Trabelsi, M Uchida, S Uehara, Y Unno, S Uno, P Urquijo, Y Usov, G Varner, K E Varvell, V Vorobyev, A Vossen, C H Wang, P Wang, M Watanabe, Y Watanabe, J Wicht, K M Williams, E Won, Y Yamashita, C Z Yuan, Z P Zhang, V Zhilich, A Zupanc; Belle Collaboration

Affiliation

¹ Seoul National University, Seoul.

PMID: 22681063
DOI: 10.1103/PhysRevLett.108.181808

Abstract

We report first observations of B(s)(0) → J/ψη and B(s)(0) → J/ψη'. The results are obtained from 121.4 fb(-1) of data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+ e- collider. We obtain the branching fractions B(B(s)(0) → J/ψη)=[5.10±0.50(stat)±0.25(syst)(-0.79)(+1.14)(N(B(s)(*) B(s)(*))]×10(-4), and B(B(s)(0) → J/ψη')=[3.71±0.61(stat)±0.18(syst)(-0.57)(+0.83)(N(B(s)(*) B(s)(*))]×10(-4). The ratio of the two branching fractions is measured to be (B(B(s) → J/ψη'))/(B(B(s) → J/ψη))=0.73±0.14(stat)±0.02(syst).

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Elementary Particles*
Quantum Theory