A study of charged D* production in e+ e- annihilation at an average center-of-mass energy of 58 GeV

F. Hinode, K. Abe, K. Amako, Y. Arai, T. Arima, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukawa, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, T. Hirose, Y. Homma, Y. Hoshi, N. Hosoda, N. Ishihara, N. KandaE. Kanatani, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. T. Korhonen, T. Kondo, A. E. Krüger, H. Kurashige, J. MacNaughton, T. Matsui, M. Miura, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, S. Odaka, T. Ogawa, T. Ohama, T. Ohsugi, A. Okamoto, A. Ono, T. Oyama, H. Ohyama, H. Sakamoto, M. Sakuda, M. Sato, N. Sato, M. Shioden, J. Shirai, M. Shirakata, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, M. Takita, N. Tamura, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, M. Utsumi, Y. Watase, F. Yabuki, Y. Yamada, T. Yamagata, Y. Yonezawa, H. Yoshida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We have studied the production of charged D* mesons in e+ e- annihilation at an average center-of-mass energy of 58.0 GeV. Charged D* mesons were identified using two independent methods; the mass-difference method and the detection of the low transverse-momentum pion. The forward-backward asymmetry of the charm quark production was measured to be Ac= -0.61±0.13(stat.)±0.08(syst.). The cross section of inclusive D* production was found to be σ(e+ e-→D* ±+X) = 24.5 ± 5.3 (stat.)±3.0(syst.) pb. If we assume the standard model prediction for the charm quark production, we obtain the branching ratio for the charm quark to produce a charged D* meson to be Br(c→D*+ + X) = (22±5(stat.)±3(syst.))%.

Original languageEnglish
Pages (from-to)245-252
Number of pages8
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - Aug 26 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'A study of charged D<sup>*</sup> production in e<sup>+</sup> e<sup>-</sup> annihilation at an average center-of-mass energy of 58 GeV'. Together they form a unique fingerprint.

Cite this