Journal article
Authors list: Mizuk, R.; Chistov, R.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Bhardwaj, V.; Bitenc, U.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, M. -C.; Chang, P.; Chen, A.; Chen, K. -F.; Cheon, B. G.; Chiang, C. -C.; Cho, I. -S.; Choi, S. -K.; Choi, Y.; Dalseno, J.; Danilov, M.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kah, D. H.; Kaji, H.; Kang, J. H.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, H. O.; Kim, Y. I.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krizan, P.; Krokovny, P.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, J. S.; Lee, M. J.; Lin, S. -W.; Liu, C.; Liu, Y.; Liventsev, D.; Mandl, F.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C. W.; Park, H.; Park, H. K.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwartz, A. J.; Senyo, K.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Somov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tikhomirov, I.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wicht, J.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
Publication year: 2008
Journal: Physical Review D
Volume number: 78
Issue number: 7
ISSN: 2470-0010
eISSN: 2470-0029
DOI Link: https://doi.org/10.1103/PhysRevD.78.072004
Publisher: American Physical Society
Abstract:
We report the first observation of two resonancelike structures in the pi(+)chi(c1) invariant mass distribution near 4.1 GeV/c(2) in exclusive (B)overbar(0)-> K-pi(+)chi(c1) decays. From a Dalitz plot analysis in which the pi(+)chi(c1) mass structures are represented by Breit-Wigner resonance amplitudes, we determine masses and widths of: M-1=(4051 +/- 14(-41)(+20)) MeV/c(2), Gamma(1)=(82(-17-22)(+21+47)) MeV, M-2=(4248(-29-35)(+44+180)) MeV/c(2), and Gamma(2)=(177(-39-61)(+54+316)) MeV; and product branching fractions of B((B)overbar(0)-> K(-)Z(1,2)(+))xB(Z(1,2)(+)->pi(+)chi(c1))=(3.0(-0.8-1.6)(+1.5+3.7))x10(-5) and (4.0(-0.9-0.5)(+2.3+19.7))x10(-5), respectively. Here the first uncertainty is statistical, the second is systematic. The significance of each of the pi(+)chi(c1) structures exceeds 5 sigma, including the systematic uncertainty from various fit models. This analysis is based on 657x10(6) B(B)overbar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Citation Styles
Harvard Citation style: Mizuk, R., Chistov, R., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., et al. (2008) Observation of two resonancelike structures in the π+χc1 mass distribution in exclusive (B)overbar0→K-π+χc1 decays, Physical Review D (particles, fields, gravitation, and cosmology), 78(7), Article 072004. https://doi.org/10.1103/PhysRevD.78.072004
APA Citation style: Mizuk, R., Chistov, R., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A., Balagura, V., Barberio, E., Bay, A., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bracko, M., Brodzicka, J., Browder, T., Chang, M., ...Zyukova, O. (2008). Observation of two resonancelike structures in the π+χc1 mass distribution in exclusive (B)overbar0→K-π+χc1 decays. Physical Review D (particles, fields, gravitation, and cosmology). 78(7), Article 072004. https://doi.org/10.1103/PhysRevD.78.072004
