Observation of Ds1(2536)+→D+π-K+ and angular decomposition of Ds1(2536)+→D*+KS0

V. Balagura, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, K. Belous, V. Bhardwaj, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M. C. Chang, Y. Chao, A. ChenW. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, A. Garmash, B. Golob, H. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. W. Lin, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, K. Senyo, M. Shapkin, C. P. Shen, H. Shibuya, J. G. Shiu, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

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Abstract

Using 462fb-1 of e+e- annihilation data recorded by the Belle detector, we report the first observation of the decay Ds1(2536)+→D+π-K+. The ratio of branching fractions B(Ds1(2536)+→D+π-K+)B(Ds1(2536) +→D*+K0) is measured to be (3.27±0.18±0.37)%. We also study the angular distributions in the Ds1(2536)+→D*+KS0 decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of ΓS/Γtotal=0.72±0.05±0.01.

Original languageEnglish
Article number032001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number3
DOIs
Publication statusPublished - 2008 Feb 14

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Balagura, V., Adachi, I., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Barberio, E., Bay, A., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., Chao, Y., ... Zyukova, O. (2008). Observation of Ds1(2536)+→D+π-K+ and angular decomposition of Ds1(2536)+→D*+KS0. Physical Review D - Particles, Fields, Gravitation and Cosmology, 77(3), [032001]. https://doi.org/10.1103/PhysRevD.77.032001