Angular analysis of the e (+)e (-) -> D-(*D-)+/-*(-/+) process near the open charm threshold using initial- state radiation

Zhukova, V.; Pakhlova, G.; Pakhlov, P.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Behera, P.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Cervenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Czank, T.; Dash, N.; Di Carlo, S.; Dolezal, Z.; Drasal, Z.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Garmash, A.; Gillard, R.; Goldenzweig, P.; Grzymkowska, O.; Guido, E.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Hou, W. -S.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Julius, T.; Kang, K. H.; Karyan, G.; Kiesling, C.; Kim, D. Y.; Kim, K. T.; Kim, S. H.; Korpar, S.; Kotchetkov, D.; Krizan, P.; Krokovny, P.; Kulasiri, R.; Kwon, Y. -J.; Lange, J. S.; Li, L.; Gioi, L. Li; Liventsev, D.; Luo, T.; Masuda, M.; Matsuda, T.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Nakao, M.; Nanut, T.; Nath, K. J.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Olsen, S. L.; Ono, H.; Pal, B.; Park, C. -S.; Park, C. W.; Paul, S.; Pavelkin, I.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Pulvermacher, C.; Rostomyan, A.; Sakai, Y.; Salehi, M. (2018): Angular analysis of the e (+)e (-) -> D-(*D-)+/-*(-/+) process near the open charm threshold using initial- state radiation. In: Physical Review D, Vol. 97, No. 1, 12002

Abstract

We report a new measurement of the exclusive e(+) e(-) -> D-(*()+/-)*D--/+ cross sections as a function of the center-of-mass energy from the D-(*D-)+/-*(-/+) threshold through root s = 6.0 GeV, using the initial-state radiation technique. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 951 fb(-1). The accuracy of the cross section measurement is increased by a factor of 2 over the first Belle study. We perform the first angular analysis of the e(+) e(-) -> D*D-+/-*(-/+) process and decompose this exclusive cross section into three components corresponding to the D * helicities.

• Item Type: Journal article
• Faculties: Medicine
• Subjects: 600 Technology > 610 Medicine and health
• ISSN: 2470-0010
• Annotation: Vollständige Autorenliste s. Volltext
• Language: English