Aubert, B; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Robbe, P; Tisserand, V; Palano, A; Pompili, A; Chen, GP; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Stugu, B; Abrams, GS; Borgland, AW; Breon, AB; Brown, DN; Button-Shafer, J; Cahn, RN; Clark, AR; Gill, MS; Gritsan, AV; Groysman, Y; Jacobsen, RG; Kadel, RW; Kadyk, J; Kerth, LT; Kolomensky, YG; Kral, JF; LeClerc, C; Levi, ME; Lynch, G; Oddone, PJ; Pripstein, M; Roe, NA; Romosan, A; Ronan, MT; Shelkov, VG; Telnov, AV; Wenzel, WA; Harrison, TJ; Hawkes, CM; Knowles, DJ; O'Neale, SW; Penny, RC; Watson, AT; Watson, NK; Deppermann, T; Goetzen, K; Koch, H; Kunze, M; Lewandowski, B; Peters, K; Schmuecker, H; Steinke, M; Barlow, NR; Bhimji, W; Chevalier, N; Clark, PJ; Cottingham, WN; Foster, B; Mackay, C; Wilson, FF; Abe, K; Hearty, C; Mattison, TS; McKenna, JA; Thiessen, D; Jolly, S; McKemey, AK; Blinov, VE; Bukin, AD; Bukin, DA; Buzykaev, AR; Golubev, VB; Ivanchenko, VN; Korol, AA; Kravchenko, EA; Onuchin, AP; Serednyakov, SI

doi:10.1103/PhysRevD.65.091101

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Study of B^±→J/ψπ^± and B^±→J/ψK^± decays: Measurement of the ratio of branching fractions and search for direct CP-violating charge asymmetries

2002

Aubert, B;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
Robbe, P;
Tisserand, V;
Palano, A;
Pompili, A;
Chen, GP;
Chen, JC;
Qi, ND;
Rong, G;
Wang, P;
Zhu, YS;
Eigen, G;
Stugu, B;
Abrams, GS;
Borgland, AW;
Breon, AB;
Brown, DN;
Button-Shafer, J;
Cahn, RN;
Clark, AR;
Gill, MS;
Gritsan, AV;
Groysman, Y;
Jacobsen, RG;
Kadel, RW;
Kadyk, J;
Kerth, LT;
Kolomensky, YG;
Kral, JF;
LeClerc, C;
Levi, ME;
Lynch, G;
Oddone, PJ;
Pripstein, M;
Roe, NA;
Romosan, A;
Ronan, MT;
Shelkov, VG;
Telnov, AV;
Wenzel, WA;
Harrison, TJ;
Hawkes, CM;
Knowles, DJ;
O'Neale, SW;
Penny, RC;
Watson, AT;
Watson, NK;
Deppermann, T;
Goetzen, K;
Koch, H;
Kunze, M;
Lewandowski, B;
Peters, K;
Schmuecker, H;
Steinke, M;
Barlow, NR;
Bhimji, W;
Chevalier, N;
Clark, PJ;
Cottingham, WN;
Foster, B;
Mackay, C;
Wilson, FF;
Abe, K;
Hearty, C;
Mattison, TS;
McKenna, JA;
Thiessen, D;
Jolly, S;
McKemey, AK;
Blinov, VE;
Bukin, AD;
Bukin, DA;
Buzykaev, AR;
Golubev, VB;
Ivanchenko, VN;
Korol, AA;
Kravchenko, EA;
Onuchin, AP;
Serednyakov, SI;
Skovpen, YI;
Telnov, VI;
Yushkov, AN;
Best, D;
Chao, M;
Kirkby, D;
Lankford, AJ;
Mandelkern, M;
McMahon, S;
Stoker, DP;
Arisaka, K;
Buchanan, C;
Chun, S;
MacFarlane, DB;
Prell, S
et al.

Published Web Location

https://doi.org/10.1103/PhysRevD.65.091101

Creative Commons 'BY' version 4.0 license

Abstract

We have studied the B±→J/ψπ± and B±→J/ψK± decays using a 20.7 fb-1 data set collected with the BABAR detector. We observe a signal of 51±10 B±→J/ψπ± events and determine the ratio B(B± →J/ψπ±)/B(B±→J/ψ K±) to be [3.91±0.78(stat)±0.19(syst)]%. The CP-violating charge asymmetries for the B±→J/ψπ± and B±→J/ψK± decays are determined to be Aπ=0.01±0.22(stat)±0.01(syst) and AK =0.003±0.030(stat)±0.004(syst).

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Study of B±→J/ψπ± and B±→J/ψK± decays: Measurement of the ratio of branching fractions and search for direct CP-violating charge asymmetries

Published Web Location

Study of B^±→J/ψπ^± and B^±→J/ψK^± decays: Measurement of the ratio of branching fractions and search for direct CP-violating charge asymmetries