Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/7539
Title: Study of time-dependent CP-violating asymmetries and flavor oscillations in neutral B decays at the ϒ(4S)
Authors: Aubert, B
Boutigny, D
Gaillard, JM
Hicheur, A
Karyotakis, Y
Lees, JP
Robbe, P
Tisserand, V
Palano, A
Pompili, A
Chen, GP
Giraud, PF
Wenzel, WA
de Monchenault, GH
Kozanecki, W
Langer, M
Azzopardi, DE
London, GW
Mayer, B
Wilson, MG
Taras, P
Bettarini, S
Breon, AB
Serfass, B
Vasseur, G
Yeche, C
Zito, M
Purohit, MV
Harrison, TJ
Back, JJ
Singh, H
Weidemann, AW
Bondioli, M
Playfer, S
Yumiceva, FX
Adam, I
de Sangro, R
Chen, E
Aston, D
Berger, N
Boyarski, AM
Calderini, G
Bellodi, G
Bucci, F
Convery, MR
Payne, DJ
Coupal, DP
Hawkes, CM
Dong, D
Dorfan, J
Falciai, D
Dunwoodie, W
Dubois-Felsmann, GP
Field, RC
Campagna, E
Glanzman, T
Groysman, Y
Kral, JF
Gowdy, S
Haas, T
Halyo, V
Himel, T
Hryn'ova, T
Knowles, DJ
Finocchiaro, G
Carpinelli, M
Huffer, ME
Innes, WR
Dvoretskii, A
Nicholson, H
Dixon, P
Jessop, C
Kelsey, MH
Kim, P
Kocian, ML
Langenegger, U
Bozzi, C
Leith, DWGS
Luitz, S
Patteri, P
Luth, V
Cartaro, C
O'Neale, SW
Harrison, PF
Lynch, HL
Rong, G
Marsiske, H
Forti, F
Menke, S
Messner, R
Muller, DR
O'Grady, CP
Ozcan, VE
Cavallo, N
Peruzzi, IM
Perazzo, A
Vasileiadis, G
Perl, M
Giorgi, MA
Petrak, S
Penny, RC
Hitlin, DG
Quinn, H
Ratcliff, BN
Robertson, SH
De Nardo, G
Roodman, A
Salnikov, AA
Piccolo, M
Roe, NA
Lu, A
Schietinger, T
Schindler, RH
Schwiening, J
Snyder, A
Soha, A
Metzler, S
Fabozzi, F
Watson, AT
Spanier, SM
Eschrich, I
Stelzer, J
Su, D
Potter, RJL
Xie, Y
Sullivan, MK
Tanaka, HA
Va'vra, J
Wagner, SR
Gatto, C
Weinstein, AJR
Cremaldi, L
Wisniewski, WJ
Oyang, J
Wright, DH
Watson, NK
Shorthouse, HW
Young, CC
Zallo, A
Burchat, PR
Cheng, CH
Grothe, M
Schmitz, RE
Meyer, TI
Roat, C
Henderson, R
Bugg, W
Cohn, H
Porter, FC
Strother, P
Izen, JM
Kitayama, I
Bagnasco, S
Lusiani, A
Lista, L
Deppermann, T
Lou, XC
Bianchi, F
Bona, M
Gamba, D
Bosisio, L
Della Ricca, G
Vidal, PB
Dittongo, S
Marchiori, G
Ryd, A
Paolucci, P
Lanceri, L
Sharma, V
Poropat, P
Vuagnin, G
Goetzen, K
Panvini, RS
Brown, CM
Jackson, PD
Martinez-Vidal, F
Cowan, G
Kowalewski, R
Sloane, RJ
Roney, JM
Band, HR
Samuel, A
Buzzo, A
Charles, E
Dasu, S
Eichenbaum, AM
Morganti, M
Hu, H
Koch, H
George, S
Borgland, AW
Johnson, JR
Liu, R
Di Lodovico, F
Pan, Y
Prepost, R
Brown, DN
Neri, N
Weaver, M
Scott, IJ
Sekula, SJ
von Wimmersperg-Toeller, JH
Piccolo, D
Green, MG
Wu, SL
Yu, Z
Kunze, M
Kordich, TMB
Paoloni, E
Neal, H
BABAR Collaboration
Contri, R
Lewandowski, B
Yang, S
Sciacca, C
Peters, K
Kurup, A
Schmuecker, H
Steinke, M
Piemontese, L
Barlow, NR
Bhimji, W
Chevalier, N
Clark, PJ
Cottingham, WN
Crosetti, G
LeClerc, C
Foster, B
Mackay, C
Jacobsen, RG
Rama, M
Zhu, RY
Wilson, FF
Abe, K
Hearty, C
Mattison, TS
McKenna, JA
Thiessen, D
LoSecco, JM
Jolly, S
Lo Vetere, M
Rizzo, G
McKemey, AK
Verderi, M
Blinov, VE
Bukin, AD
Devmal, S
Bukin, DA
Buzykaev, AR
Golubev, VB
Alsmiller, JRG
Ivanchenko, VN
Eschenburg, V
Korol, AA
Kravchenko, EA
Macri, M
Marker, CE
Onuchin, AP
Serednyakov, SI
Skovpen, YI
Telnov, VI
Wang, P
Gabriel, TA
Long, O
Yushkov, AN
Best, D
Chao, M
Kirkby, D
Lankford, AJ
Chen, JC
Monge, MR
Mandelkern, M
McMahon, S
Stoker, DP
Sandrelli, F
Brau, J
Arisaka, K
Buchanan, C
Geld, TL
Chun, S
MacFarlane, DB
Prell, S
McGrath, P
Jayatilleke, S
Passaggio, S
Simi, G
Mancinelli, G
Frey, R
Meadows, BT
Sokoloff, MD
Barillari, T
Bloom, P
Dima, MO
Ford, WT
Nauenberg, U
McMahon, TR
Schumm, BA
Zhu, YS
Olivas, A
Heusch, CA
Pastore, FC
Rankin, P
Roy, J
Smith, JG
van Hoek, WC
Blouw, J
Harton, JL
Romosan, A
Krishnamurthy, M
Ricciardi, S
Soffer, A
Touramanis, C
Toki, WH
Eigen, G
Patrignani, C
Wilson, RJ
Zhang, J
Brandt, T
Triggiani, G
Brose, J
Colberg, T
Dickopp, M
Salvatore, F
Grauges, E
Dubitzky, RS
Hauke, A
Maly, E
Muller-Pfefferkorn, R
Campagnari, C
Walsh, J
Stugu, B
Otto, S
Schubert, KR
Schwierz, R
Spaan, B
Rahatlou, S
Vaitsas, G
Wilden, L
Bernard, D
Bonneaud, GR
Haire, M
Brochard, F
Cohen-Tanugi, J
Pia, MG
Ferrag, S
Abrams, GS
T'Jampens, S
Iwasaki, M
Robutti, E
Brown, D
Button-Shafer, J
Judd, D
Santroni, A
Tosi, S
Morii, M
Bartoldus, R
Hamilton, R
Mallik, U
Cochran, J
Sinev, NB
Dahmes, B
Crawley, HB
Treadwell, E
Davis, CL
Fischer, PA
Lamsa, J
Cahn, RN
Meyer, WT
Rosenberg, EI
Grosdidier, G
Hast, C
Strom, D
Hocker, A
Kroeger, R
Lacker, HM
Hart, PA
Allison, J
Laplace, S
Lepeltier, V
Lutz, AM
Plaszczynski, S
Clark, AR
Schune, MH
Colecchia, F
Paick, K
Trincaz-Duvoid, S
Wormser, G
Bionta, RM
Brigljevic, V
Anjomshoaa, A
Kuznetsova, N
Lange, D
Mugge, M
van Bibber, K
Wright, DM
Thiebaux, C
Levi, ME
Bevan, AJ
Gill, MS
Fry, JR
Gabathuler, E
Gamet, R
Barlow, RJ
George, M
Levy, SL
Kay, M
Turnbull, L
Kadel, RW
Dal Corso, F
Mazur, MA
Boyd, JT
Forti, AC
Fullwood, J
Jackson, F
Lafferty, GD
Savvas, N
Weatherall, JH
Wagoner, DE
Bernet, R
Williams, JC
Dorigo, A
Farbin, A
Jawahery, A
Richman, JD
Kadyk, J
Lillard, V
Olsen, J
Roberts, DA
Albert, J
Schieck, JR
Blaylock, G
Khan, A
Galeazzi, F
Dallapiccola, C
Flood, K
Hertzbach, SS
Kofler, R
Verkerke, W
Koptchev, VB
Elmer, P
Kerth, LT
Moore, TB
Staengle, H
Willocq, S
Aspinwall, ML
Lavin, D
Brau, B
Cowan, R
Sciolla, G
Taylor, F
Seiden, A
Yamamoto, RK
Beringer, J
Milek, M
Patel, PM
Kolomensky, YG
Margoni, M
Palombo, F
Muheim, F
Bauer, JM
Lockman, WS
Lu, C
Swain, JE
Michelon, G
Morandin, M
Posocco, M
Rotondo, M
Simonetto, F
Stroili, R
Lynch, G
Bowerman, DA
Torassa, E
Ronan, MT
Voci, C
Benayoun, M
Tinslay, J
Pulliam, T
Briand, H
Chauveau, J
David, P
de la Vaissiere, C
Del Buono, L
Gritsan, AV
Miftakov, V
Hamon, O
Le Diberder, F
Oddone, PJ
Leruste, P
Falbo, M
Ocariz, J
Schalk, T
Roos, L
Stark, J
Manfredi, PF
Reidy, J
Dauncey, PD
Re, V
Speziali, V
Frank, ED
Gladney, L
Guo, QH
Borean, C
Pripstein, M
Panetta, J
Qi, ND
Schaffner, SF
Angelini, C
Egede, U
Batignani, G
Anulli, F
Gunawardane, NJW
Smith, AJS
Tumanov, A
Varnes, EW
Cavoto, G
del Re, D
Ferrarotto, F
Turri, M
Sanders, DA
Ferroni, F
Lamanna, E
Shelkov, VG
Nash, JA
Baldini-Ferroli, R
Mazzoni, MA
Morganti, S
Piredda, G
Tehrani, FS
Serra, M
Eisner, AM
Voena, C
Faccini, R
Walkowiak, W
Christ, S
Sanders, P
Waldi, R
Calcaterra, A
Adye, T
Telnov, AV
De Groot, N
Summers, DJ
Franek, B
Geddes, NI
Gopal, GP
Xella, SM
Aleksan, R
Smith, D
Williams, DC
Emery, S
Raven, G
Gaidot, A
Nief, JY
Ganzhur, SF
Issue Date: 2002
Publisher: American Physical Society
Citation: Physical Review D, 66(3): Artn 032003, Aug 2002
Abstract: We present a measurement of time-dependent CP-violating asymmetries in neutral B meson decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the Stanford Linear Accelerator Center. The data sample consists of 29.7 fb-1 recorded at the Υ(4S) resonance and 3.9 fb-1 off resonance. One of the neutral B mesons, which are produced in pairs at the Υ(4S), is fully reconstructed in the CP decay modes J/ψKS0, ψ(2S)KS0, χc1KS0, J/ψK*0 (K*0→KS0π0) and J/ψKL0, or in flavor-eigenstate modes involving D(*)π/ρ/a1 and J/ψK*0 (K*0→K+π-). The flavor of the other neutral B meson is tagged at the time of its decay, mainly with the charge of identified leptons and kaons. A neural network tagging algorithm is used to recover events without a clear lepton or kaon tag. The proper time elapsed between the decays is determined by measuring the distance between the decay vertices. Wrong-tag probabilities, the time-difference resolution function, and the B0-B0 oscillation frequency Δmd are measured with a sample of about 6350 fully-reconstructed B0 decays in hadronic flavor-eigenstate modes. A maximum-likelihood fit to this flavor eigenstate sample finds Δmd=0.516±0.016(stat)±0.010(syst)ps-1. The value of the asymmetry amplitude sin2β is determined from a simultaneous maximum-likelihood fit to the time-difference distribution of the flavor-eigenstate sample and about 642 tagged B0 decays in the CP-eigenstate modes. We find sin2β=0.59±0.14(stat)±0.05(syst), demonstrating that CP violation exists in the neutral B meson system. We also determine the value of the CP violation parameter |λ|=0.93±0.09(stat)±0.03(syst), which is consistent with the expectation of |λ|=1 for no direct CP violation.
Description: This is the pre-print version of the Article. The official published version can be accessed from the links below. Copyright @ 2002 APS
URI: http://prd.aps.org/abstract/PRD/v66/i3/e032003
http://bura.brunel.ac.uk/handle/2438/7539
DOI: http://dx.doi.org/10.1103/PhysRevD.66.032003
ISSN: 0556-2821
Appears in Collections:Electronic and Computer Engineering
Dept of Electronic and Computer Engineering Research Papers

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