Observation ofDs1(2536)+→D+π−K+and angular decomposition ofDs1(2536)+→D*+KS0

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

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American Physical Society, Physical Review D, 3(77)

DOI: 10.1103/physrevd.77.032001

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Observation ofDs1(2536)+→D+π−K+and angular decomposition ofDs1(2536)+→D*+KS0

Journal article published in 2008 by 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 and other authors.

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Abstract

Using 462 fb-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.

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Observation ofDs1(2536)+→D+π−K+and angular decomposition ofDs1(2536)+→D*+KS0

Abstract