Journal article

Observation of e+ e- → γχc1 and search for e+ e- → γχc0, γχc2, and γηc at √s near 10.6 GeV at Belle


Authors listJia, S.; Wang, X. L.; Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Bansal, V.; Behera, P.; Beleno, C.; Berger, M.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bobrov, A.; Bozek, A.; Bracko, M.; Browder, T. E.; Cao, L.; Cervenkov, D.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Dash, N.; Di Carlo, S.; Dolezal, Z.; Dong, T. V.; Eidelman, S.; Epifanov, D.; Fast, J. E.; Ferber, T.; Frey, A.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gelb, M.; Giri, A.; Goldenzweig, P.; Greenwald, D.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jin, Y.; Joffe, D.; Kahn, J.; Kaliyar, A. B.; Karyan, G.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, S. H.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kotchetkov, D.; Krizan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Lalwani, K.; Lange, J. S.; Lee, I. S.; Lee, J. Y.; Lee, S. C.; Li, C. H.; Li, L. K.; Li, Y. B.; Gioi, L. Li; Libby, J.; Liptak, Z.; Liventsev, D.; Lu, P. -C.; Lubej, M.; MacNaughton, J.; Masuda, M.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyata, H.; Mizuk, R.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nath, K. J.; Nayak, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Olsen, S. L.; Ono, H.; Onuki, Y.; Ostrowicz, W.; Pakhlova, G.; Pal, B.; Pardi, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prencipe, E.; Ritter, M.; Rostomyan, A.; Russo, G.; Sakai, Y.; Salehi, M.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Sokolov, A.; Solovieva, E.; Staric, M.; Stottler, Z. S.; Strube, J. F.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tanida, K.; Tao, Y.; Tenchini, F.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Tonder, R.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Waheed, E.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanuki, S.; Widmann, E.; Won, E.; Yamamoto, H.; Yang, S. B.; Ye, H.; Yin, J. H.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

Publication year2018

JournalPhysical Review D

Volume number98

Issue number9

ISSN2470-0010

eISSN2470-0029

DOI Linkhttps://doi.org/10.1103/PhysRevD.98.092015

PublisherAmerican Physical Society


Abstract
Using data samples of 89.5 fb(-1), 711.0 fb(-1), and 121.4 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e(+)e(-) -> gamma chi(cJ) (J = 0, 1, 2) and e(+)e(-) -> gamma chi(c). A significant gamma chi(c1) signal is observed for the first time at root s = 10.58 GeV with a significance of 5.1 sigma including systematic uncertainties. No significant excesses for gamma chi(c0), gamma chi(c2), and gamma chi(c) final states are found, and we set 90% credibility level upper limits on the Born cross sections (sigma(B)) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of sigma(B) (e(+)e(-) -> gamma chi(c1)) thorn is obtained.



Citation Styles

Harvard Citation styleJia, S., Wang, X., Shen, C., Yuan, C., Adachi, I., Aihara, H., et al. (2018) Observation of e+ e- → γχc1 and search for e+ e- → γχc0, γχc2, and γηc at √s near 10.6 GeV at Belle, Physical Review D (particles, fields, gravitation, and cosmology), 98(9), Article 092015. https://doi.org/10.1103/PhysRevD.98.092015

APA Citation styleJia, S., Wang, X., Shen, C., Yuan, C., Adachi, I., Aihara, H., Al Said, S., Asner, D., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bansal, V., Behera, P., Beleno, C., Berger, M., Bhuyan, B., Bilka, T., ...Zhulanov, V. (2018). Observation of e+ e- → γχc1 and search for e+ e- → γχc0, γχc2, and γηc at √s near 10.6 GeV at Belle. Physical Review D (particles, fields, gravitation, and cosmology). 98(9), Article 092015. https://doi.org/10.1103/PhysRevD.98.092015


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