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

doi:10.1103/PhysRevD.77.032001

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

Balagura, V. ; Adachi, I. ; Aihara, H. ; Arinstein, K.[...]

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. © 2008 The American Physical Society.

Published in:

Physical Review D - Particles, Fields, Gravitation and Cosmology, 77, 3, 032001

Year:

2008

DOI:

10.1103/PhysRevD.77.032001

Other identifiers:

Scopus: 2-s2.0-41049114717
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Laboratories:

LPHE

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Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
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