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Limit on the B0-->rho0rho0 branching fraction and implications for the Cabibbo-Kobayashi-Maskawa angle alpha.
- Author(s): Aubert, B
- Barate, R
- Boutigny, D
- Couderc, F
- Karyotakis, Y
- Lees, JP
- Poireau, V
- Tisserand, V
- Zghiche, A
- Grauges-Pous, E
- Palano, A
- Pompili, A
- Chen, JC
- Qi, ND
- Rong, G
- Wang, P
- Zhu, YS
- Eigen, G
- Ofte, I
- Stugu, B
- Abrams, GS
- Borgland, AW
- 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
- Kelly, MP
- Latham, TE
- Wilson, FF
- Cuhadar-Donszelmann, T
- Hearty, C
- Knecht, NS
- Mattison, TS
- McKenna, JA
- Thiessen, D
- Khan, A
- Kyberd, P
- Teodorescu, L
- Blinov, AE
- Blinov, VE
- Druzhinin, VP
- Golubev, VB
- Ivanchenko, VN
- Kravchenko, EA
- Onuchin, AP
- Serednyakov, SI
- Skovpen, Yu I
- Solodov, EP
- Yushkov, AN
- Best, D
- Bruinsma, M
- Chao, M
- Eschrich, I
- Kirkby, D
- Lankford, AJ
- Mandelkern, M
- Mommsen, RK
- Roethel, W
- Stoker, DP
- Buchanan, C
- Hartfiel, BL
- Weinstein, AJR
- Foulkes, SD
- Gary, JW
- Long, O
- Shen, BC
- Wang, K
- Del Re, D
- Hadavand, HK
- Hill, EJ
- Macfarlane, DB
- Paar, HP
- Rahatlou, Sh
- Sharma, V
- Berryhill, JW
- Campagnari, C
- Cunha, A
- Dahmes, B
- Hong, TM
- Lu, A
- 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
- Yang, S
- Jayatilleke, S
- Mancinelli, G
- Meadows, BT
- Sokoloff, MD
- Blanc, F
- Bloom, P
- Chen, S
- Ford, WT
- Nauenberg, U
- Olivas, A
- Rankin, P
- Ruddick, WO
- Smith, JG
- Ulmer, KA
- Zhang, J
- Zhang, L
- Chen, A
- Eckhart, EA
- Harton, JL
- Soffer, A
- Toki, WH
- Wilson, RJ
- Zeng, Q
- Spaan, B
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- Brose, J
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- Lacker, HM
- Maly, E
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- Otto, S
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- Schubert, J
- Schubert, KR
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- Negrini, M
- Piemontese, L
- Sarti, A
- Anulli, F
- Baldini-Ferroli, R
- Calcaterra, A
- de Sangro, R
- Finocchiaro, G
- Patteri, P
- Peruzzi, IM
- Piccolo, M
- Zallo, A
- Buzzo, A
- Capra, R
- Contri, R
- Crosetti, G
- Lo Vetere, M
- Macri, M
- Monge, MR
- Passaggio, S
- Patrignani, C
- Robutti, E
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- Bailey, S
- Brandenburg, G
- Chaisanguanthum, KS
- Morii, M
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- Dubitzky, RS
- Langenegger, U
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- Bowerman, DA
- Dauncey, PD
- Egede, U
- Gaillard, JR
- Morton, GW
- Nash, JA
- Nikolich, MB
- Taylor, GP
- Charles, MJ
- Grenier, GJ
- Mallik, U
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- Rosenberg, EI
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- Le Diberder, F
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- Schune, MH
- Wormser, G
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- Simani, MC
- Wright, DM
- Bevan, AJ
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- BABAR Collaboration
- et al.
Abstract
We search for the decay B0-->rho(0)rho(0) in a data sample of about 227x10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We find no significant signal and set an upper limit of 1.1x10(-6) at 90% C.L. on the branching fraction. As a result, the uncertainty due to penguin contributions on the Cabibbo-Kobayashi-Maskawa unitarity angle alpha measured in B-->rhorho decays is decreased to 11 degrees at 68% C.L.
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