Observation of the doubly cabibbo-suppressed decay Ds+→K+K+π-
Ko, B.R.; Won, E.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A.M.; Balagura, V.; Barberio, E.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T.E.; Chen, A.; Cheon, B.G.; Cho, I.-S.; Choi, Y.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Gabyshev, N.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Han, B.-Y.; Hayasaka, K.; Hayashii, H.; Hoshi, Y.; Hou, W.-S.; Hyun, H.J.; Itoh, R.; Iwasaki, M.; Kah, D.H.; Kang, J.H.; Kapusta, P.; Kawasaki, T.; Kichimi, H.; Kim, H.J.; Kim, H.O.; Kim, S.K.; Kim, Y.I.; Kim, Y.J.; Kinoshita, K.; Korpar, S.; Krokovny, P.; Kuzmin, A.; Kwon, Y.-J.; Kyeong, S.-H.; Lee, M.J.; Lee, S.E.; Lesiak, T.; Li, J.; Limosani, A.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; MacNaughton, J.; Mandl, F.; McOnie, S.; Medvedeva, T.; Miyata, H.; Miyazaki, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, C.W.; Park, H.; Park, H.K.; Park, K.S.; Pestotnik, R.; Piilonen, L.E.; Sahoo, H.; Sakai, K.; Sakai, Y.; Schneider, O.; Schwanda, C.; Sekiya, A.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shen, C.P.; Shiu, J.-G.; Shwartz, B.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tanaka, M.; Taylor, G.N.; Teramoto, Y.; Trebelsi, K.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Varner, G.; Varvell, K.E.; Vervink, K.; Wang, C.C.; Wang, C.H.; Wang, P.; Wang, X.L.; Watanabe, Y.; Wedd, R.; Yabsley, B.D.; Yamashita, Y.; Zhang, Z.P.; Zhilich, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
2009
Abstract
We report the first observation of the doubly Cabibbo-suppressed decay Ds+→K+K+π- using 605fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching ratio with respect to its Cabibbo-favored counterpart B(Ds+→K+K+π-)/B(Ds+→K+K-π+) is (0.229±0.028±0.012)%, where the first uncertainty is statistical and the second is systematic. We also report a significantly improved measurement of the doubly Cabibbo-suppressed decay D+→K+π+π-, with a branching ratio B(D+→K+π+π-)/B(D+→K-π+π+)=(0.569±0. 018±0.014)%. © 2009 The American Physical Society.
Details
Title
Observation of the doubly cabibbo-suppressed decay Ds+→K+K+π-
Author(s)
Ko, B.R. ; Won, E. ; Aihara, H. ; Arinstein, K. ; Aushev, T. ; Bakich, A.M. ; Balagura, V. ; Barberio, E. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T.E. ; Chen, A. ; Cheon, B.G. ; Cho, I.-S. ; Choi, Y. ; Drutskoy, A. ; Dungel, W. ; Eidelman, S. ; Gabyshev, N. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Haba, J. ; Han, B.-Y. ; Hayasaka, K. ; Hayashii, H. ; Hoshi, Y. ; Hou, W.-S. ; Hyun, H.J. ; Itoh, R. ; Iwasaki, M. ; Kah, D.H. ; Kang, J.H. ; Kapusta, P. ; Kawasaki, T. ; Kichimi, H. ; Kim, H.J. ; Kim, H.O. ; Kim, S.K. ; Kim, Y.I. ; Kim, Y.J. ; Kinoshita, K. ; Korpar, S. ; Krokovny, P. ; Kuzmin, A. ; Kwon, Y.-J. ; Kyeong, S.-H. ; Lee, M.J. ; Lee, S.E. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Liu, C. ; Liu, Y. ; Liventsev, D. ; Louvot, R. ; MacNaughton, J. ; Mandl, F. ; McOnie, S. ; Medvedeva, T. ; Miyata, H. ; Miyazaki, Y. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Palka, H. ; Park, C.W. ; Park, H. ; Park, H.K. ; Park, K.S. ; Pestotnik, R. ; Piilonen, L.E. ; Sahoo, H. ; Sakai, K. ; Sakai, Y. ; Schneider, O. ; Schwanda, C. ; Sekiya, A. ; Senyo, K. ; Sevior, M.E. ; Shapkin, M. ; Shen, C.P. ; Shiu, J.-G. ; Shwartz, B. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tanaka, M. ; Taylor, G.N. ; Teramoto, Y. ; Trebelsi, K. ; Uehara, S. ; Ueno, K. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Varner, G. ; Varvell, K.E. ; Vervink, K. ; Wang, C.C. ; Wang, C.H. ; Wang, P. ; Wang, X.L. ; Watanabe, Y. ; Wedd, R. ; Yabsley, B.D. ; Yamashita, Y. ; Zhang, Z.P. ; Zhilich, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O.
Published in
Physical Review Letters
Volume
102
Issue
22
Pages
221802
Date
2009
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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
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Work produced at EPFL
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Peer-reviewed publications
Work produced at EPFL
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Record creation date
2010-11-05