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Observation of Cabibbo-suppressed and W-exchange Λc+ baryon decays

Authors
 K. Abe  ;  K. Abe  ;  R. Abe  ;  T. Abe  ;  I. Adachi  ;  Byoung Sup Ahn  ;  H. Aihara  ;  M. Akatsu  ;  Y. Asano  ;  T. Aso  ;  V. Aulchenko  ;  T. Aushev  ;  A.M. Bakich  ;  Y. Ban  ;  E. Banas  ;  S. Behari  ;  P.K. Behera  ;  A. Bondar  ;  A. Bozek  ;  T.E. Browder  ;  B.C.K. Casey  ;  P. Chang  ;  Y. Chao  ;  B.G. Cheon  ;  R. Chistov  ;  S.K. Choi  ;  Y. Choi  ;  L.Y. Dong  ;  A. Drutskoy  ;  S. Eidelman  ;  V. Eiges  ;  Y. Enari  ;  F. Fang  ;  H. Fujii  ;  C. Fukunaga  ;  M. Fukushima  ;  N. Gabyshev  ;  A. Garmash  ;  T. Gershon  ;  A. Gordon  ;  R. Guo  ;  J. Haba  ;  H. Hamasaki  ;  F. Handa K. Hara  ;  T. Hara  ;  N.C. Hastings  ;  H. Hayashii  ;  M. Hazumi  ;  E.M. Heenan  ;  I. Higuchi  ;  T. Higuchi  ;  T. Hojo  ;  T. Hokuue  ;  Y. Hoshi  ;  K. Hoshina  ;  S.R. Hou  ;  W.S. Hou  ;  S.C. Hsu  ;  H.C. Huang  ;  Y. Igarashi  ;  T. Iijima  ;  H. Ikeda  ;  K. Inami  ;  A. Ishikawa  ;  H. Ishino  ;  R. Itoh  ;  H. Iwasaki  ;  Y. Iwasaki  ;  D.J. Jackson  ;  P. Jalocha  ;  H.K. Jang  ;  R. Kagan  ;  J.H. Kang  ;  J.S. Kang  ;  P. Kapusta  ;  N. Katayama  ;  H. Kawai  ;  H. Kawai  ;  N. Kawamura  ;  T. Kawasaki  ;  H. Kichimi  ;  D.W. Kim  ;  Heejong Kim  ;  H.J. Kim  ;  H.O. Kim  ;  Hyunwoo Kim  ;  S.K. Kim  ;  T.H. Kim  ;  K. Kinoshita  ;  H. Konishi  ;  S. Korpar  ;  P. Križan  ;  P. Krokovny  ;  R. Kulasiri  ;  S. Kumar  ;  A. Kuzmin  ;  Y.J. Kwon  ;  J.S. Lange  ;  G. Leder  ;  S.H. Lee  ;  D. Liventsev  ;  R.S. Lu  ;  J. MacNaughton  ;  T. Matsubara  ;  S. Matsumoto  ;  T. Matsumoto  ;  Y. Mikami  ;  K. Miyabayashi  ;  H. Miyake  ;  H. Miyata  ;  G.R. Moloney  ;  S. Mori  ;  T. Mori  ;  T. Nagamine  ;  Y. Nagasaka  ;  Y. Nagashima  ;  T. Nakadaira  ;  E. Nakano  ;  M. Nakao  ;  J.W. Nam  ;  Z. Natkaniec  ;  K. Neichi  ;  S. Nishida  ;  O. Nitoh  ;  S. Noguchi  ;  S. Ogawa  ;  T. Ohshima  ;  T. Okabe  ;  S. Okuno  ;  S.L.Olsen  ;  W. Ostrowicz  ;  H. Ozaki  ;  P. Pakhlov  ;  H. Palka  ;  C.S. Park  ;  C.W. Park  ;  H. Park  ;  K.S. Park  ;  L.S. Peak  ;  J.P. Perroud  ;  M. Peters  ;  L.E. Piilonen  ;  N. Root  ;  M. Rozanska  ;  K. Rybicki  ;  J. Ryuko  ;  H. Sagawa  ;  Y. Sakai  ;  H. Sakamoto  ;  M. Satapathy  ;  O. Schneider  ;  S. Schrenk  ;  S. Semenov  ;  K. Senyo  ;  M.E. Sevior  ;  H. Shibuya  ;  B. Shwartz  ;  J.B. Singh  ;  S. Staniˇc  ;  A. Sugi  ;  A. Sugiyama  ;  K. Sumisawa  ;  T. Sumiyoshi  ;  K. Suzuki  ;  S. Suzuki  ;  S.Y. Suzuki  ;  S.K. Swain  ;  T. Takahashi  ;  F. Takasaki  ;  M. Takita  ;  K. Tamai  ;  N. Tamura  ;  J. Tanaka  ;  M. Tanaka  ;  Y. Tanaka  ;  G.N. Taylor  ;  Y. Teramoto  ;  M. Tomoto  ;  T. Tomura  ;  S.N. Tovey  ;  T. Tsuboyama  ;  T. Tsukamoto  ;  S. Uehara  ;  K. Ueno  ;  Y. Unno  ;  S. Uno  ;  Y. Ushiroda  ;  S.E.Vahsen  ;  K.E. Varvell  ;  C.C. Wang  ;  C.H. Wang  ;  J.G. Wang  ;  M.Z. Wang  ;  Y. Watanabe  ;  E. Won  ;  B.D. Yabsley  ;  Y. Yamada  ;  M. Yamaga  ;  A. Yamaguchi  ;  Y. Yamashita  ;  M. Yamauchi  ;  S. Yanaka  ;  J. Yashima  ;  M. Yokoyama  ;  K. Yoshida  ;  Y. Yuan  ;  Y. Yusa  ;  C.C. Zhang  ;  J. Zhang  ;  H.W. Zhao  ;  Y. Zheng  ;  V. Zhilich  ;  D. Žontar 
Citation
 PHYSICS LETTERS B, Vol.524(1-2) : 33-43, 2002 
Journal Title
PHYSICS LETTERS B
ISSN
 0370-2693 
Issue Date
2002
Keywords
Charmed baryon ; Cabibbo-suppressed ; W-exchange
Abstract
We present measurements of the Cabibbo-suppressed decays Λc+→Λ0K+ and Λc+→Σ0K+ (both first observations), Λc+→Σ+K+π− (seen with large statistics for the first time), Λc+→pK+K− and Λc+→pφ (measured with improved accuracy). Improved branching ratio measurements for the decays Λc+→Σ+K+K− and Λc+→Σ+φ, which are attributed to W-exchange diagrams, are shown. We also present the first evidence for Λc+→Ξ(1690)0K+ and set an upper limit on the non-resonant decay Λc+→Σ+K+K−. This analysis was performed using 32.6 fb−1 of data collected by the Belle detector at the asymmetric e+e− collider KEKB.



PACS
13.30.Eg;
14.20.Lq
Full Text
http://www.sciencedirect.com/science/article/pii/S0370269301013739
DOI
10.1016/S0370-2693(01)01373-9
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Se Kyu(김세규)
Cho, Jae Yong(조재용) ORCID logo https://orcid.org/0000-0002-0926-1819
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/143515
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