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24 April 2024

» pubmed » pmid16712287

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Measurement of the branching fraction, polarization, and asymmetry for decays, and determination of the Cabibbo-Kobayashi-Maskawa phase
A Somov ; A J Schwartz ; K Abe ; K Abe ; I Adachi ; H Aihara ; D Anipko ; K Arinstein ; Y Asano ; V Aulchenko ; T Aushev ; T Aziz ; S Bahinipati ; A M Bakich ; V Balagura ; A Bay ; I Bedny ; K Belous ; U Bitenc ; I Bizjak ; S Blyth ; A Bondar ; A Bozek ; M Bracko ; J Brodzicka ; T E Browder ; M-C Chang ; P Chang ; Y Chao ; A Chen ; W T Chen ; B G Cheon ; R Chistov ; S-K Choi ; Y Choi ; Y K Choi ; A Chuvikov ; S Cole ; J Dalseno ; M Dash ; J Dragic ; A Drutskoy ; S Eidelman ; D Epifanov ; N Gabyshev ; A Garmash ; T Gershon ; A Go ; G Gokhroo ; B Golob ; K Hara ; T Hara ; N C Hastings ; K Hayasaka ; H Hayashii ; M Hazumi ; Y Hoshi ; S Hou ; W-S Hou ; Y B Hsiung ; T Iijima ; K Ikado ; K Inami ; A Ishikawa ; H Ishino ; R Itoh ; M Iwasaki ; Y Iwasaki ; J H Kang ; P Kapusta ; N Katayama ; H Kawai ; T Kawasaki ; H Kichimi ; H J Kim ; S K Kim ; S M Kim ; K Kinoshita ; S Korpar ; P Krizan ; P Krokovny ; C C Kuo ; A Kusaka ; A Kuzmin ; Y-J Kwon ; G Leder ; T Lesiak ; J Li ; A Limosani ; S-W Lin ; J Macnaughton ; F Mandl ; D Marlow ; T Matsumoto ; W Mitaroff ; K Miyabayashi ; H Miyake ; H Miyata ; Y Miyazaki ; R Mizuk ; D Mohapatra ; Y Nagasaka ; M Nakao ; Z Natkaniec ; S Nishida ; O Nitoh ; S Noguchi ; S Ogawa ; T Ohshima ; T Okabe ; S Okuno ; S L Olsen ; W Ostrowicz ; H Ozaki ; H Palka ; C W Park ; H Park ; R Pestotnik ; L E Piilonen ; A Poluektov ; Y Sakai ; T R Sarangi ; N Sato ; T Schietinger ; O Schneider ; C Schwanda ; R Seidl ; K Senyo ; M E Sevior ; M Shapkin ; H Shibuya ; B Shwartz ; V Sidorov ; A Sokolov ; N Soni ; S Stanic ; M Staric ; T Sumiyoshi ; S Suzuki ; O Tajima ; F Takasaki ; K Tamai ; N Tamura ; M Tanaka ; G N Taylor ; Y Teramoto ; X C Tian ; K Trabelsi ; T Tsuboyama ; T Tsukamoto ; S Uehara ; T Uglov ; K Ueno ; Y Unno ; S Uno ; P Urquijo ; Y Ushiroda ; Y Usov ; G Varner ; S Villa ; C H Wang ; M-Z Wang ; Y Watanabe ; E Won ; Q L Xie ; B D Yabsley ; A Yamaguchi ; M Yamauchi ; J Ying ; L M Zhang ; Z P Zhang ; V Zhilich ; ;
Date:	5 May 2006
Journal:	Phys Rev Lett, 96 (17), 171801
Abstract:	We have measured the branching fraction , longitudinal polarization fraction f(L), and CP asymmetry coefficients A and S for B(0) --> rho(+) rho(-) decays with the Belle detector at the KEKB e(+) e(-) collider using 253 Fb(-1) of data. We obtain B = [22.8 +/- 3.8(stat)(+2.3)(-2.6)(syst)] x 10(-6), f(L) = 0.941 (+0.034)(-0.040)(stat) +/- 0.030(syst). A = 0.00 +/- 0.30(stat) +/- 0.09(syst) and S = 0.08 +/- 0.09(syst). These values are used to constrain the Cabibbo-Kobayashi-Maskawa phase ; the solution consistent with the standard model is phi(2) = (88 +/- 17) degrees or 59 degrees < phi(2) < 115 degrees at 90% C.L.
Source:	PubMed, pmid16712287
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