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Evidence for B+ --> K0K+ and B0 --> K0K0, and measurement of the branching fraction and search for direct CP violation in B+ --> K0pi+.
- Author(s): Aubert, B
- Barate, R
- Boutigny, D
- Couderc, F
- Karyotakis, Y
- Lees, JP
- Poireau, V
- Tisserand, V
- Zghiche, A
- Grauges, E
- Palano, A
- Pappagallo, M
- Pompili, A
- Chen, JC
- Qi, ND
- Rong, G
- Wang, P
- Zhu, YS
- Eigen, G
- Ofte, I
- Stugu, B
- Abrams, GS
- Battaglia, M
- Breon, AB
- Brown, DN
- Button-Shafer, J
- Cahn, RN
- Charles, E
- Day, CT
- Gill, MS
- Gritsan, AV
- Groysman, Y
- Jacobsen, RG
- Kadel, RW
- Kadyk, J
- Kerth, LT
- Kolomensky, Yu G
- Kukartsev, G
- Lynch, G
- Mir, LM
- Oddone, PJ
- Orimoto, TJ
- Pripstein, M
- Roe, NA
- Ronan, MT
- Wenzel, WA
- Barrett, M
- Ford, KE
- Harrison, TJ
- Hart, AJ
- Hawkes, CM
- Morgan, SE
- Watson, AT
- Fritsch, M
- Goetzen, K
- Held, T
- Koch, H
- Lewandowski, B
- Pelizaeus, M
- Peters, K
- Schroeder, T
- Steinke, M
- Boyd, JT
- Burke, JP
- Chevalier, N
- Cottingham, WN
- Cuhadar-Donszelmann, T
- Fulsom, BG
- Hearty, C
- Knecht, NS
- Mattison, TS
- McKenna, JA
- Khan, A
- Kyberd, P
- Saleem, M
- Teodorescu, L
- Blinov, AE
- Blinov, VE
- Bukin, AD
- Druzhinin, VP
- Golubev, VB
- Kravchenko, EA
- Onuchin, AP
- Serednyakov, SI
- Skovpen, Yu I
- Solodov, EP
- Yushkov, AN
- Best, D
- Bondioli, M
- Bruinsma, M
- Chao, M
- Curry, S
- Eschrich, I
- Kirkby, D
- Lankford, AJ
- Lund, P
- Mandelkern, M
- Mommsen, RK
- Roethel, W
- Stoker, DP
- Buchanan, C
- Hartfiel, BL
- Weinstein, AJR
- Foulkes, SD
- Gary, JW
- Long, O
- Shen, BC
- Wang, K
- Zhang, L
- del Re, D
- Hadavand, HK
- Hill, EJ
- MacFarlane, DB
- Paar, HP
- Rahatlou, S
- Sharma, V
- Berryhill, JW
- Campagnari, C
- Cunha, A
- Dahmes, B
- Hong, TM
- Mazur, MA
- Richman, JD
- Verkerke, W
- Beck, TW
- Eisner, AM
- Flacco, CJ
- Heusch, CA
- Kroseberg, J
- Lockman, WS
- Nesom, G
- Schalk, T
- Schumm, BA
- Seiden, A
- Spradlin, P
- Williams, DC
- Wilson, MG
- Albert, J
- Chen, E
- Dubois-Felsmann, GP
- Dvoretskii, A
- Hitlin, DG
- Narsky, I
- Piatenko, T
- Porter, FC
- Ryd, A
- Samuel, A
- Andreassen, R
- Jayatilleke, S
- Mancinelli, G
- Meadows, BT
- Sokoloff, MD
- Blanc, F
- Bloom, P
- Chen, S
- Ford, WT
- Hirschauer, JF
- Kreisel, A
- Nauenberg, U
- Olivas, A
- Rankin, P
- Ruddick, WO
- Smith, JG
- Ulmer, KA
- Wagner, SR
- Zhang, J
- Chen, A
- Eckhart, EA
- Soffer, A
- Toki, WH
- Wilson, RJ
- Zeng, Q
- Altenburg, D
- Feltresi, E
- Hauke, A
- Spaan, B
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- Brose, J
- Dickopp, M
- Klose, V
- Lacker, HM
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- Otto, S
- Petzold, A
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- Schubert, KR
- Schwierz, R
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- Vasileiadis, G
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- Xie, Y
- Andreotti, M
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- Bozzi, C
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- Luppi, E
- Negrini, M
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- Anulli, F
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- de Sangro, R
- Finocchiaro, G
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- Peruzzi, IM
- Piccolo, M
- Zallo, A
- Buzzo, A
- Capra, R
- Contri, R
- Lo Vetere, M
- Macri, M
- Monge, MR
- Passaggio, S
- Patrignani, C
- Robutti, E
- Santroni, A
- Tosi, S
- Brandenburg, G
- Chaisanguanthum, KS
- Morii, M
- Won, E
- Wu, J
- Dubitzky, RS
- Langenegger, U
- Marks, J
- Schenk, S
- Uwer, U
- Bhimji, W
- Bowerman, DA
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- Egede, U
- Flack, RL
- Gaillard, JR
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- Nash, JA
- Nikolich, MB
- Taylor, GP
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- Crawley, HB
- Eyges, V
- Meyer, WT
- Prell, S
- Rosenberg, EI
- Rubin, AE
- Yi, J
- Arnaud, N
- Davier, M
- Giroux, X
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- Höcker, A
- Le Diberder, F
- Lepeltier, V
- Lutz, AM
- Oyanguren, A
- Petersen, TC
- Pierini, M
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- Rodier, S
- Roudeau, P
- Schune, MH
- Stocchi, A
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- Cheng, CH
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- Simani, MC
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- Naisbit, MT
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- Sullivan, MK
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- Swain, S
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- Wisniewski, WJ
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- Wright, DH
- Yarritu, AK
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- Petersen, BA
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- Ahmed, S
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- Ernst, JA
- Saeed, MA
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- Bugg, W
- Krishnamurthy, M
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- Ritchie, JL
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- BABAR Collaboration
- et al.
Abstract
We present evidence for the b --> d penguin-dominated decays B+ --> K0K+ and B0 --> K0K0 in 227 x 10(6) Y(4S) --> BB decays collected with the BABAR detector. We measure the branching fractions B(B+ --> K0K+) = (1.5 +/- 0.5 +/- 0.1) x 10(-6)(< 2.4 x 10(-6)) and B(B0 --> K0K0) = [formula: see text], where the uncertainties are statistical and systematic, respectively. We also present improved measurements of the charge-averaged branching fraction B(B+ --> K0pi+) = (26.0 +/- 1.3 +/- 1.0) x 10(-6) and CP-violating charge asymmetry A(CP) (K0pi+) = -0.09 +/- 0.05 +/- 0.01), where the uncertainties are statistical and systematic, respectively.
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