Measurement of the direct CP asymmetry in B � ?xs+d? decays with a lepton tag

Pes�ntez L.; Urquijo P.; Dingfelder J.; Abdesselam A.; Adachi I.; Adamczyk K.; Aihara H.; Al Said S.; Arinstein K.; Asner D.M.; Aulchenko V.; Aushev T.; Ayad R.; Bahinipati S.; Bakich A.M.; Bansal V.; Barberio E.; Bhardwaj V.; Bhuyan B.; Bobrov A.; Bondar A.; Bonvicini G.; Bozek A.; Bra?ko M.; Browder T.E.; ?ervenkov D.; Chekelian V.; Chen A.; Cheon B.G.; Chilikin K.; Chistov R.; Cho K.; Chobanova V.; Choi Y.; Cinabro D.; Dalseno J.; Dole�al Z.; Dr�sal Z.; Drutskoy A.; Dutta D.; Eidelman S.; Farhat H.; Fast J.E.; Ferber T.; Frost O.; Gaur V.; Gabyshev N.; Ganguly S.; Garmash A.; Getzkow D.; Gillard R.; Goh Y.M.; Golob B.; Haba J.; Hasenbusch J.; Hayashii H.; He X.H.; Heller A.; Horiguchi T.; Hou W.-S.; Huschle M.; Iijima T.; Inami K.; Ishikawa A.; Itoh R.; Iwasaki Y.; Jaegle I.; Joffe D.; Julius T.; Kang K.H.; Kato E.; Kawasaki T.; Kiesling C.; Kim D.Y.; Kim J.B.; Kim J.H.; Kim K.T.; Kim M.J.; Kim S.H.; Kim Y.J.; Ko B.R.; Kody� P.; Korpar S.; Kri�an P.; Krokovny P.; Kronenbitter B.; Kuhr T.; Kumita T.; Kuzmin A.; Kwon Y.-J.; Lange J.S.; Lee I.S.; Li Y.; Li Gioi L.; Libby J.; Liventsev D.; Lukin P.; Matvienko D.; Miyabayashi K.; Miyata H.; Mizuk R.; Mohanty G.B.; Moll A.; Moon H.K.; Nakano E.; Nakao M.; Nanut T.; Natkaniec Z.; Nayak M.; Ng C.; Nisar N.K.; Nishida S.; Ogawa S.; Okuno S.; Olsen S.L.; Oswald C.; Pakhlov P.; Pakhlova G.; Park C.W.; Park H.; Pedlar T.K.; Pestotnik R.; Petri? M.; Piilonen L.E.; Ribe�l E.; Ritter M.; Rostomyan A.; Rozanska M.; Sakai Y.; Sandilya S.; Santelj L.; Sanuki T.; Sato Y.; Savinov V.; Schneider O.; Schnell G.; Schwanda C.; Schwartz A.J.; Senyo K.; Seon O.; Sevior M.E.; Shebalin V.; Shen C.P.; Shibata T.-A.; Shiu J.-G.; Shwartz B.; Sibidanov A.; Simon F.; Sohn Y.-S.; Sokolov A.; Solovieva E.; Stari? M.; Steder M.; Sumiyoshi T.; Tamponi U.; Taniguchi N.; Tatishvili G.; Teramoto Y.; Trabelsi K.; Uchida M.; Uglov T.; Unno Y.; Uno S.; Usov Y.; Van Hulse C.; Vanhoefer P.; Varner G.; Vinokurova A.; Vorobyev V.; Wagner M.N.; Wang B.; Wang C.H.; Wang M.-Z.; Wang P.; Watanabe Y.; Williams K.M.; Won E.; Yamaoka J.; Yashchenko S.; Yook Y.; Zhang Z.P.; Zhilich V.; Zhulanov V.; Zupanc A.

Measurement of the direct CP asymmetry in B � ?xs+d? decays with a lepton tag

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2015

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We report the measurement of the direct CP asymmetry in the radiative B�?Xs+d? decay using a data sample of (772�11)�106 BB� pairs collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The CP asymmetry is measured as a function of the photon energy threshold. For E???2.1GeV, where E?? is the photon energy in the center-of-mass frame, we obtain ACP(B�?Xs+d?)=(2.2�3.9�0.9)%, consistent with the standard model prediction. � 2015 American Physical Society.

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5

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http://dx.doi.org/10.1103/PhysRevLett.114.151601
https://idr.iitbbs.ac.in/handle/2008/768

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Measurement of the direct CP asymmetry in B � ?xs+d? decays with a lepton tag

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