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584 results on '"Kral, JF"'

1. The BaBar detector: Upgrades, operation and performance

Author: Aubert, B, Barate, R, Boutigny, D, Couderc, F, del Amo Sanchez, P, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Robbe, P, Tisserand, V, Zghiche, A, Grauges, E, Tico, J Garra, Lopez, L, Martinelli, M, Palano, A, Pappagallo, M, Pompili, A, Chen, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Clark, AR, Day, CT, Furman, M, Gill, MS, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Merchant, AM, Mir, LM, Oddone, PJ, Orimoto, TJ, Osipenkov, IL, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Suzuki, A, Tackmann, K, Tanabe, T, Wenzel, WA, Zisman, M, Barrett, M, Bright-Thomas, PG, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Knowles, DJ, Morgan, SE, O'Neale, SW, Penny, RC, Smith, D, Soni, N, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Kunze, M, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Schroeder, T, Steinke, M, Fella, A, Antonioli, E, Boyd, JT, Chevalier, N, Cottingham, WN, Foster, B, Mackay, C, and Walker, D
Subjects: General-purpose detector for colliding beams, Operational experience, High-luminosity storage ring operation, Ream monitoring, physics.ins-det, hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences, Nuclear & Particles Physics
Abstract: The BaBar detector operated successfully at the PEP-II asymmetric e +e- collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking. © 2013 Elsevier B.V.
Published: 2013

2. Measurements of the branching fractions of charged B decays to K±π∓π± final states

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present results of searches for 5-meson decays to K+π -π+ with the BABAR detector. With a data sample of 61.6 × 106 BB̄ pairs, we measure the branching fractions and 90% confidence-level upper limits averaged over charge-conjugate states (the first error is statistical and the second is systematic): B[B+ → K*0(892)π+] = (15.5 ± 1.8 -4.0+1.5) × 10-6, B[B+ → f0(980)K+, f0 → π+π -] = (9.2 ± 1.2-2.6+2.1) × 10 -6, B[B+ → D̄0π+, D̄0 → K+π-] = (184.6 ± 3.2 ± 9.7) × 10-6, B[B+ → ρ0(770)K+] < 6.2 × 10-6 and B[B+ → K+π-π+ nonresonant] < 17 × 10-6.
Published: 2004

3. Limits on the Decay-Rate Difference of Neutral B Mesons and on CP, T, and CPT Violation in B0B¯0 Oscillations

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, and Mandelkern, M
Subjects: BaBar Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: Using events in which one of two neutral B mesons from the decay of an Upsilon(4S) meson is fully reconstructed, we determine parameters governing decay (DeltaGamma(d)/Gamma(d)), CP, and T violation (|q/p|), and CP and CPT violation (Re z,Im z). The results, obtained from an analysis of 88 x 10(6) Upsilon(4S) decays recorded by BABAR, are sgn(Re lambda(CP))DeltaGamma(d)/Gamma(d)=-0.008+/-0.037(stat)+/-0.018(syst)[-0.084,0.068],|q/p|=1.029+/-0.013(stat)+/-0.011(syst)[1.001,1.057],(Re lambda(CP)/|lambda(CP)|) Re z=0.014+/-0.035(stat)+/-0.034(syst)[-0.072,0.101],Im z=0.038+/-0.029(stat)+/-0.025(syst)[-0.028,0.104]. The values inside the square brackets indicate the 90% confidence-level intervals. These results are consistent with standard model expectations.
Published: 2004

4. Limits on the decay-rate difference of neutral B mesons and on CP, T, and CPT violation in B(0-0)B oscillations.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, and Mandelkern, M
Subjects: BaBar Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: Using events in which one of two neutral B mesons from the decay of an Upsilon(4S) meson is fully reconstructed, we determine parameters governing decay (DeltaGamma(d)/Gamma(d)), CP, and T violation (|q/p|), and CP and CPT violation (Re z,Im z). The results, obtained from an analysis of 88 x 10(6) Upsilon(4S) decays recorded by BABAR, are sgn(Re lambda(CP))DeltaGamma(d)/Gamma(d)=-0.008+/-0.037(stat)+/-0.018(syst)[-0.084,0.068],|q/p|=1.029+/-0.013(stat)+/-0.011(syst)[1.001,1.057],(Re lambda(CP)/|lambda(CP)|) Re z=0.014+/-0.035(stat)+/-0.034(syst)[-0.072,0.101],Im z=0.038+/-0.029(stat)+/-0.025(syst)[-0.028,0.104]. The values inside the square brackets indicate the 90% confidence-level intervals. These results are consistent with standard model expectations.
Published: 2004

5. Measurement of the Branching Fraction and Polarization for the Decay B-→D0K-

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present a study of the decay B--->D(*0)K(*-) based on a sample of 86 x 10(6) Upsilon(4S)-->BBmacr; decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure the branching fraction B(B--->D(*0)K(*-))=(8.3+/-1.1(stat)+/-1.0(syst)) x 10(-4), and the fraction of longitudinal polarization in this decay to be Gamma(L)/Gamma=0.86+/-0.06(stat)+/-0.03(syst).
Published: 2004

6. Measurements of the Mass and Width of the ηc Meson and of an ηc(2S) Candidate

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: The mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data, the results are m(eta(c))=2982.5+/-1.1(stat)+/-0.9(syst) MeV/c(2) and Gamma(eta(c))(tot)=34.3+/-2.3(stat)+/-0.9(syst) MeV/c(2). Using the same decay mode, a second resonance with 112+/-24 events is observed with a mass of 3630.8+/-3.4(stat)+/-1.0(syst) MeV/c(2) and width of 17.0+/-8.3(stat)+/-2.5(syst) MeV/c(2). This observation is consistent with expectations for the eta(c)(2S) state.
Published: 2004

7. Measurement of the branching fraction and polarization for the decay B--->D0K-.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present a study of the decay B--->D(*0)K(*-) based on a sample of 86 x 10(6) Upsilon(4S)-->BBmacr; decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure the branching fraction B(B--->D(*0)K(*-))=(8.3+/-1.1(stat)+/-1.0(syst)) x 10(-4), and the fraction of longitudinal polarization in this decay to be Gamma(L)/Gamma=0.86+/-0.06(stat)+/-0.03(syst).
Published: 2004

8. Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: The mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data, the results are m(eta(c))=2982.5+/-1.1(stat)+/-0.9(syst) MeV/c(2) and Gamma(eta(c))(tot)=34.3+/-2.3(stat)+/-0.9(syst) MeV/c(2). Using the same decay mode, a second resonance with 112+/-24 events is observed with a mass of 3630.8+/-3.4(stat)+/-1.0(syst) MeV/c(2) and width of 17.0+/-8.3(stat)+/-2.5(syst) MeV/c(2). This observation is consistent with expectations for the eta(c)(2S) state.
Published: 2004

9. Measurement of the branching fraction for B±→χc0K±

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a measurement of the branching fraction of the decay B ±→χc0K± sample of 89×106 BB̄ pairs collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. The χc0 meson is reconstructed through its two-body decays toπ+ π- and K+K-. We measure B(B± → χc0K±) ×Β(χ c0→π+π-) = [1.32-027+0.28(stat)±0.26(syst)] × 10-6 and B(B ±→ χc0K±) × B(χc0 →K+K-) = [1.49 -0.34+0.36(stat) ±0.22(syst)] × 10 -6. Using the known values for the χc0 decays branching fractions, we combine these results to obtain Β(B ± →χc0K±) = (2.7±0.7)× 10-4. © 2004 The American Physical Society.
Published: 2004

10. Search for the Radiative Decays B→ργ and B0→ωγ

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: A search of the exclusive radiative decays B-->rho(770)gamma and B0-->omega(782)gamma is performed on a sample of about 84x10(6) BBmacr; events collected by the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. No significant signal is seen in any of the channels. We set upper limits on the branching fractions B of B(B0-->rho(0)gamma)rho+gamma)omegagamma)rhogamma)=Gamma(B+-->rho(+)gamma)=2 x Gamma(B0-->rho(0)gamma), we find the combined limit B(B-->rhogamma)rhogamma)/B(B-->K*gamma)
Published: 2004

11. Search for the radiative decays B-->rhogamma and B0-->omegagamma.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: A search of the exclusive radiative decays B-->rho(770)gamma and B0-->omega(782)gamma is performed on a sample of about 84x10(6) BBmacr; events collected by the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. No significant signal is seen in any of the channels. We set upper limits on the branching fractions B of B(B0-->rho(0)gamma)rho+gamma)omegagamma)rhogamma)=Gamma(B+-->rho(+)gamma)=2 x Gamma(B0-->rho(0)gamma), we find the combined limit B(B-->rhogamma)rhogamma)/B(B-->K*gamma)
Published: 2004

12. Measurement of sin 2β with hadronic and previously unused muonic J/ψ decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, Mommsen, RK, and Roethel, W
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report a measurement of the CP-violation parameter sin 2β with B0J/ψKS0 decays in which the J/ψ decays to hadrons or to muons that do not satisfy our standard identification criteria. With a sample of 88 million BB̄ events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we reconstruct 100±17 such events, with J/ψ→π-π -π0 being the most prevalent, and measure sin2β=1.56± 0.42(stat)±0.21(syst). © 2004 The American Physical Society.
Published: 2004

13. Measurement of the Inclusive Charmless Semileptonic Branching Ratio of B Mesons and Determination of

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Borgland, A, 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, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: Mathematical Sciences, Physical Sciences, Engineering, General Physics
Published: 2004

14. Measurement of branching fractions of color-suppressed decays of the B0 meson to D()0π0, D()0η, D(*)0ω, and D0η′

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Using a sample of 88.8×106 BB̄ events collected with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center, we measure the branching fractions of seven color-suppressed B-meson decays: β(B̄0→D0π0) = [2.9±0.2(stat)±0.3(syst)]× 10-4, β(B̄0→D*0π0) = [2.9±0.4(stat)±0.5(syst)] × 10-4, β(B̄0→D0η) = [2.5±0.2(stat) ±0.3(syst)]×10-4, β(B̄0→D *0η = [2.6±0.4(stat)δ0.4(syst)] ×10 -4, β(B̄0→D0ω) = [3.0±0.3(stat)±0.4(syst)]× 10-4, β(B̄0→D*0ω) = [4.2±0.7(stat)±0.9(syst)] ×10-4, and β(B̄→D0η′) = [ 1.7±0.4(stat) ±0.2(syst)]× 10-4. We set the 90% confidence-level upper limit: β(B̄0→D*0η′)
Published: 2004

15. J/ψ production via initial state radiation in e+e-→μ+μ-γ at an e+e- center-of-mass energy near 10.6 GeV

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, 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, Kirkby, D, Lankford, AJ, and Mandelkern, M
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We have studied the process e+e -→μ+μ-γ at a center-of-mass energy near the γ(4S) resonance for a μ+μ- invariant mass range near the J/Ψ mass and measured the cross section σ(e+e-→J/Ψ γt →μ +μ-γ). The data set, corresponding to an integrated luminosity of 88.4 fb-1, was collected using the BABAR detector at the SLAC PEP-II collider. From the measured cross section we extract the product Γ(J/Ψ→e+e-)B(J/ Ψ→μ+μ-) = 0.330±0.008±0.007 keV. Using the world averages for B(J/Ψ →μ+μ - and B(J/Ψ→e+e-), we derive the J/Ψ electronic and total widths: Γ(J/Ψ→e+e -) = 5.61 ±0.20 keV and Γ = 94.7 ± 4.4 keV. © 2004 The American Physical Society.
Published: 2004

16. Measurements of branching fractions in B→φK and B→φπ and search for direct CP violation in B±→φK±

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present measurements of branching fractions in the b→ss̄s penguin-dominated decays B+→φK+ and B 0φK0 in a sample of approximately 89 million BB̄ pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. We determine B(B+→φK+) = (10.0-08+09±0.5)×10-6 and B(B 0→φK0) = (8.4-13+15± 0.5)×10-6. Additionally, we measure the CP-violating charge asymmetry ACP(B±→φK±) = 0.04±0.09±0.01, with a 90% confidence-level interval of [-0.10,0.18], and set an upper limit on the CKM- and color-suppressed decay B+→φπ+, B(B+→φπ +)
Published: 2004

17. Measurement of branching fractions of color-suppressed decays of the B̄-0 meson to D()0π0 D()0η D(*)0ω, and D 0η′

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, and Mandelkern, M
Subjects: hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: Using a sample of 88.8×106 BB̄ events collected with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center, we measure the branching fractions of seven color-suppressed B-meson decays: β(B̄0→D0π0) = [2.9±0.2(stat)±0.3(syst)]× 10-4, β(B̄0→D*0π0) = [2.9±0.4(stat)±0.5(syst)] × 10-4, β(B̄0→D0η) = [2.5±0.2(stat) ±0.3(syst)]×10-4, β(B̄0→D *0η = [2.6±0.4(stat)δ0.4(syst)] ×10 -4, β(B̄0→D0ω) = [3.0±0.3(stat)±0.4(syst)]× 10-4, β(B̄0→D*0ω) = [4.2±0.7(stat)±0.9(syst)] ×10-4, and β(B̄→D0η′) = [ 1.7±0.4(stat) ±0.2(syst)]× 10-4. We set the 90% confidence-level upper limit: β(B̄0→D*0η′)
Published: 2004

18. J/Ψ production via initial state radiation in e+e -→ μ+μ-γ at an e +e- center-of-mass energy near 10.6 GeV

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, YG, Kral, JF, Kukartsev, G, Leclerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, and Mandelkern, M
Subjects: hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: We have studied the process e+e -→μ+μ-γ at a center-of-mass energy near the γ(4S) resonance for a μ+μ- invariant mass range near the J/Ψ mass and measured the cross section σ(e+e-→J/Ψ γt →μ +μ-γ). The data set, corresponding to an integrated luminosity of 88.4 fb-1, was collected using the BABAR detector at the SLAC PEP-II collider. From the measured cross section we extract the product Γ(J/Ψ→e+e-)B(J/ Ψ→μ+μ-) = 0.330±0.008±0.007 keV. Using the world averages for B(J/Ψ →μ+μ - and B(J/Ψ→e+e-), we derive the J/Ψ electronic and total widths: Γ(J/Ψ→e+e -) = 5.61 ±0.20 keV and Γ = 94.7 ± 4.4 keV. © 2004 The American Physical Society.
Published: 2004

19. Measurements of the branching fractions of charged B decays to K ±π∓π± final states

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Borgland, A, 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, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: We present results of searches for 5-meson decays to K+π -π+ with the BABAR detector. With a data sample of 61.6 × 106 BB̄ pairs, we measure the branching fractions and 90% confidence-level upper limits averaged over charge-conjugate states (the first error is statistical and the second is systematic): B[B+ → K*0(892)π+] = (15.5 ± 1.8 -4.0+1.5) × 10-6, B[B+ → f0(980)K+, f0 → π+π -] = (9.2 ± 1.2-2.6+2.1) × 10 -6, B[B+ → D̄0π+, D̄0 → K+π-] = (184.6 ± 3.2 ± 9.7) × 10-6, B[B+ → ρ0(770)K+] < 6.2 × 10-6 and B[B+ → K+π-π+ nonresonant] < 17 × 10-6.
Published: 2004

20. Observation of a Significant Excess of π0π0 Events in B Meson Decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present a study of the decay B0-->pi(0)pi(0) based on a sample of 124 x 10(6) BB pairs recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We observe 46+/-13+/-3 events, where the first error is statistical and the second is systematic, corresponding to a significance of 4.2 standard deviations including systematic uncertainties. We measure the branching fraction B(B0-->pi(0)pi(0))=(2.1+/-0.6+/-0.3)x10(-6), averaged over B0 and B(0) decays.
Published: 2003

21. Observation of a significant excess of pi0pi0 events in B meson decays.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BaBar Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present a study of the decay B0-->pi(0)pi(0) based on a sample of 124 x 10(6) BB pairs recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We observe 46+/-13+/-3 events, where the first error is statistical and the second is systematic, corresponding to a significance of 4.2 standard deviations including systematic uncertainties. We measure the branching fraction B(B0-->pi(0)pi(0))=(2.1+/-0.6+/-0.3)x10(-6), averaged over B0 and B(0) decays.
Published: 2003

22. Measurement of B0→Ds()+D- branching fractions and B 0→Ds+D- polarization with a partial reconstruction technique

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, YG, Kral, JF, Leclerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Arisaka, K, and Buchanan, C
Subjects: Down Syndrome, Brain Disorders, Intellectual and Developmental Disabilities (IDD), hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: We present a study of the decays B0→Ds(*)+D*-, using 20.8 fb-1 of e +e- annihilation data recorded with the BABAR detector. The analysis is conducted with a partial reconstniction technique, in which only the Ds(*)+ and the soft pion from the D*- decay are reconstructed. We measure the branching fractions B(B0→Ds+D*-) = (1.03±0.14±0.13±0.26)% and B(B0→D* s+D*-) = (1.97±0.15±0. 30±0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the Ds+ → φπ+ branching fraction uncertainty. From the B 0→D*s+D*- angular distributions, we measure the fraction of longitudinal polarization ΓL/Γ = (51.9±5.0±2.8)%, which is consistent with theoretical predictions based on factorization. © 2003 The American Physical Society.
Published: 2003

23. Evidence for the Rare Decay B→K*ℓ+ℓ- and Measurement of the B→Kℓ+ℓ- Branching Fraction

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present evidence for the flavor-changing neutral current decay B-->K*l+l- and a measurement of the branching fraction for the related process B-->K l+l-, where l+l- is either an epsilon+epsilon- or a mu+mu- pair. These decays are highly suppressed in the standard model, and they are sensitive to contributions from new particles in the intermediate state. The data sample comprises 123 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the SLAC PEP-II epsilon+epsilon- storage ring. Averaging over K(*) isospin and lepton flavor, we obtain the branching fractions B(B-->Kl+l-)=(0.65(+0.14)(-0.13)+/-0.04)x10(-6) and B(B-->K*l+l-)=(0.88(+0.33)(-0.29)+/-0.10)x10(-6), where the uncertainties are statistical and systematic, respectively. The significance of the B-->Kl+l- signal is over 8sigma, while for B-->K*l+l- it is 3.3sigma.
Published: 2003

24. Evidence for the rare decay B-->K*l+l- and measurement of the B-->Kl+l- branching fraction.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Bruinsma, M, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present evidence for the flavor-changing neutral current decay B-->K*l+l- and a measurement of the branching fraction for the related process B-->K l+l-, where l+l- is either an epsilon+epsilon- or a mu+mu- pair. These decays are highly suppressed in the standard model, and they are sensitive to contributions from new particles in the intermediate state. The data sample comprises 123 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the SLAC PEP-II epsilon+epsilon- storage ring. Averaging over K(*) isospin and lepton flavor, we obtain the branching fractions B(B-->Kl+l-)=(0.65(+0.14)(-0.13)+/-0.04)x10(-6) and B(B-->K*l+l-)=(0.88(+0.33)(-0.29)+/-0.10)x10(-6), where the uncertainties are statistical and systematic, respectively. The significance of the B-->Kl+l- signal is over 8sigma, while for B-->K*l+l- it is 3.3sigma.
Published: 2003

25. Measurements of Branching Fractions and CP-Violating Asymmetries in B0→ρ±h∓ Decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present measurements of branching fractions and CP-violating asymmetries in B0-->rho(+/-)pi(-/+) and B0-->rho-K+ decays. The results are obtained from a data sample of 88.9 x 10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B Factory. From a time-dependent maximum likelihood fit we measure the branching fractions B(B0-->rho(+/-)pi(-/+))=[22.6+/-1.8 (stat)+/-2.2 (syst)]x10(-6) and B(B0-->rho-K+)=(7.3 -1.2( +1.3)+/-1.3)x10(-6), and the CP-violating charge asymmetries A(rhopi)(CP)=-0.18+/-0.08+/-0.03 and A(rhoK)(CP)=0.28+/-0.17+/-0.08, the direct CP violation parameter C(rhopi)=0.36+/-0.18+/-0.04 and the mixing-induced CP violation parameter S(rhopi)=0.19+/-0.24+/-0.03, and the dilution parameters DeltaC(rhopi)=0.28 -0.19( +0.18)+/-0.04 and DeltaS(rhopi)=0.15+/-0.25+/-0.03.
Published: 2003

26. Measurements of branching fractions and CP-violating asymmetries in B0-->rho(+/-)h(-/+) decays.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present measurements of branching fractions and CP-violating asymmetries in B0-->rho(+/-)pi(-/+) and B0-->rho-K+ decays. The results are obtained from a data sample of 88.9 x 10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B Factory. From a time-dependent maximum likelihood fit we measure the branching fractions B(B0-->rho(+/-)pi(-/+))=[22.6+/-1.8 (stat)+/-2.2 (syst)]x10(-6) and B(B0-->rho-K+)=(7.3 -1.2( +1.3)+/-1.3)x10(-6), and the CP-violating charge asymmetries A(rhopi)(CP)=-0.18+/-0.08+/-0.03 and A(rhoK)(CP)=0.28+/-0.17+/-0.08, the direct CP violation parameter C(rhopi)=0.36+/-0.18+/-0.04 and the mixing-induced CP violation parameter S(rhopi)=0.19+/-0.24+/-0.03, and the dilution parameters DeltaC(rhopi)=0.28 -0.19( +0.18)+/-0.04 and DeltaS(rhopi)=0.15+/-0.25+/-0.03.
Published: 2003

27. Measurement of the branching fractions for the exclusive decays of B0 and B+ to D()D()K

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, del Re, D, Hadavand, HK, and Hill, EJ
Subjects: hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report the observation of 823±57 B0 and 970±65 B+ decays to doubly charmed final states D̄ (*)D(*)K, where D̄(*) and D(*) are fully reconstructed and K is either a K ± or a K0. We use a sample of 82.3 ±0.9 million B B̄ events collected between 1999 and 2002 with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center. The 22 ossible B decays to D̄(*)D(*)K are reconstructed exclusively and the corresponding branching fractions or limits are determined. The branching fractions of the B0 and of the B + to D̄(*)D(*)K are found to be Β(B0→D̄(*)D(*)K) = [4.3±0.3(stat)±0.6(syst)]%, Β(B+→D̄ (*)D(*)K) = [3.5±0.3(stat)±0. 5(syst)]%.A search for decays to orbitally excited Ds states, B→D̄(*)DsJ+(DsJ+→D(*)0K+), is also performed. No statistically significant-contributions from Ds1+(2536) →D*0K+ and DsJ+(2573) →D0K+ to the D̄(*)D (*)0K+ final state are found and we set 90% C.L. limits on their production rates. © 2003 The American Physical Society.
Published: 2003

28. Search for D0-D¯0 Mixing and a Measurement of the Doubly Cabibbo-Suppressed Decay Rate in D0→Kπ Decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present results of a search for D0-D(-)0 mixing and a measurement of R(D), the ratio of doubly Cabibbo-suppressed decays to Cabibbo-favored decays, using D0-->K+pi- decays from 57.1 fb(-1) of data collected near sqrt[s]=10.6 GeV with the BABAR detector at the PEP-II collider. At the 95% confidence level, allowing for CP violation, we find the mixing parameters x('2)
Published: 2003

29. Rates, polarizations, and asymmetries in charmless vector-vector B meson decays.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: With a sample of approximately 89 x 10(6) B(-)B pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K*). We measure the branching fractions, determine the degree of longitudinal polarization, and search for CP violation asymmetries in the processes B+-->phiK(*+), B0-->phiK(*0), B+-->rho(0)K(*+), and B+-->rho(0)rho(+). We also set an upper limit on the branching fraction for the decay B0-->rho(0)rho(0).
Published: 2003

30. Search for D0-D(-)0 mixing and a measurement of the doubly Cabibbo-suppressed decay rate in D0-->Kpi decays.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present results of a search for D0-D(-)0 mixing and a measurement of R(D), the ratio of doubly Cabibbo-suppressed decays to Cabibbo-favored decays, using D0-->K+pi- decays from 57.1 fb(-1) of data collected near sqrt[s]=10.6 GeV with the BABAR detector at the PEP-II collider. At the 95% confidence level, allowing for CP violation, we find the mixing parameters x('2)
Published: 2003

31. Measurements of CP-Violating Asymmetries and Branching Fractions in B Meson Decays to η′K

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present measurements of the branching fractions of the decays B+-->eta'K+ and B0-->eta'K0. For B0-->eta(')K(0)(S) we also measure the time-dependent CP-violation parameters S eta'(K(0)(S)) and C eta'(K(0)(S)), and for B+-->eta'K+ the time-integrated charge asymmetry A(ch). The data sample corresponds to 88.9 x 10(6) BB pairs produced by e(+)e(-) annihilation at the Upsilon(4S). The results are B(B+-->eta'K+)=(76.9+/-3.5+/-4.4) x 10(-6), B(B0-->eta'K0)=(60.6+/-5.6+/-4.6) x 10(-6), S eta'(K(0)(S))=0.02+/-0.34+/-0.03, C eta'(K(0)(S))=0.10+/-0.22+/-0.04, and A(ch)=0.037+/-0.045+/-0.011.
Published: 2003

32. Measurements of CP-violating asymmetries and branching fractions in B meson decays to eta'K.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present measurements of the branching fractions of the decays B+-->eta'K+ and B0-->eta'K0. For B0-->eta(')K(0)(S) we also measure the time-dependent CP-violation parameters S eta'(K(0)(S)) and C eta'(K(0)(S)), and for B+-->eta'K+ the time-integrated charge asymmetry A(ch). The data sample corresponds to 88.9 x 10(6) BB pairs produced by e(+)e(-) annihilation at the Upsilon(4S). The results are B(B+-->eta'K+)=(76.9+/-3.5+/-4.4) x 10(-6), B(B0-->eta'K0)=(60.6+/-5.6+/-4.6) x 10(-6), S eta'(K(0)(S))=0.02+/-0.34+/-0.03, C eta'(K(0)(S))=0.10+/-0.22+/-0.04, and A(ch)=0.037+/-0.045+/-0.011.
Published: 2003

33. Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0 → D+ D-

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Borgland, A, 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, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: General Physics, Physical Sciences, Mathematical Sciences, Engineering
Abstract: Measurement of time-dependent conjugation (C) and parity (P) asymmetries and the CP-odd fraction in the decay B0→D*+D *- was discussed. It was found that this measurement of R⊥ supersedesthe BABAR results with a factor of 3 reduction in statistical uncertainty. Results also showed that B0→D*+D*- is mostly CP even.
Published: 2003

34. Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D(+)D(-).

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present a measurement of time-dependent CP asymmetries and an updated determination of the CP-odd fraction in the decay B0-->D(*+)D(*-) using a data sample of 88x10(6)BB pairs collected by the BABAR detector at the PEP-II B Factory at SLAC. We determine the CP-odd fraction to be 0.063+/-0.055(stat)+/-0.009(syst). The time-dependent CP asymmetry parameters Im(lambda(+)) and /lambda(+)/ are determined to be 0.05+/-0.29(stat)+/-0.10(syst) and 0.75+/-0.19(stat)+/-0.02(syst), respectively. The standard model predicts these parameters to be -sin(2beta and 1, respectively, in the absence of penguin diagram contributions.
Published: 2003

35. Limits on D0-D¯0 Mixing and CP Violation from the Ratio of Lifetimes for Decay to K-π+, K-K+, and π-π+

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present a measurement of D0-macro D0 mixing parameters using the ratios of lifetimes extracted from samples of D0 mesons decaying to K-pi(+), K-K+, and pi(-)pi(+). Using 91 fb(-1) of data collected by the BABAR detector at the PEP-II asymmetric-energy B Factory, we obtain a value Y=[0.8+/-0.4(stat.)(+0.5)(-0.4)(syst.)]%, which, in the limit of CP conservation, corresponds to the mixing parameter y=Delta Gamma/2 Gamma. Using the difference in lifetimes of D0 and macro D0 mesons, we obtain the CP-violation parameter Delta Y=[-0.8+/-0.6(stat.)+/-0.2(syst.)]%.
Published: 2003

36. Limits on D0-macro D0 mixing and CP violation from the ratio of lifetimes for decay to K-pi+, K-K+, and pi- pi+.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present a measurement of D0-macro D0 mixing parameters using the ratios of lifetimes extracted from samples of D0 mesons decaying to K-pi(+), K-K+, and pi(-)pi(+). Using 91 fb(-1) of data collected by the BABAR detector at the PEP-II asymmetric-energy B Factory, we obtain a value Y=[0.8+/-0.4(stat.)(+0.5)(-0.4)(syst.)]%, which, in the limit of CP conservation, corresponds to the mixing parameter y=Delta Gamma/2 Gamma. Using the difference in lifetimes of D0 and macro D0 mesons, we obtain the CP-violation parameter Delta Y=[-0.8+/-0.6(stat.)+/-0.2(syst.)]%.
Published: 2003

37. Rare B Decays into States Containing a J/ψ Meson and a Meson with ss¯ Quark Content

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We report a study of the B meson decays, B+ --> J/psiphiK+, B0 --> J/psiphiK(0)(S), B0 --> J/psiphi, B0 --> J/psieta, and B0 --> J/psieta' using 56 x 10(6) B(-)B events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy storage ring. We measure the branching fractions B(B+ --> J/psiphiK+)=(4.4+/-1.4(stat)+/-0.5(syst))x 10(-5) and B(B0 --> J/psiphiK(0)(S))=(5.1+/-1.9(stat)+/-0.5(syst))x 10(-5), and set upper limits at 90% confidence level for the branching fractions B(B0 --> J/psiphi) J/psieta) J/psieta')
Published: 2003

38. Rare B decays into states containing a J/psi meson and a meson with s(-)s quark content.

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We report a study of the B meson decays, B+ --> J/psiphiK+, B0 --> J/psiphiK(0)(S), B0 --> J/psiphi, B0 --> J/psieta, and B0 --> J/psieta' using 56 x 10(6) B(-)B events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy storage ring. We measure the branching fractions B(B+ --> J/psiphiK+)=(4.4+/-1.4(stat)+/-0.5(syst))x 10(-5) and B(B0 --> J/psiphiK(0)(S))=(5.1+/-1.9(stat)+/-0.5(syst))x 10(-5), and set upper limits at 90% confidence level for the branching fractions B(B0 --> J/psiphi) J/psieta) J/psieta')
Published: 2003

39. Study of Time-Dependent CP Asymmetry in Neutral B Decays to J/ψπ0

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present the first study of the time-dependent CP-violating asymmetry in B0-->J/psi pi(0) decays using e(+)e(-) annihilation data collected with the BABAR detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 x 10(6) BB; pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C(J/psi pi(0))=0.38+/-0.41(stat)+/-0.09(syst) and S(J/psi pi(0))=0.05+/-0.49(stat)+/-0.16(syst).
Published: 2003

40. Measurements of the Branching Fractions and Bounds on the Charge Asymmetries of Charmless Three-Body Charged B Decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: Babar Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present measurements of branching fractions and charge asymmetries for charmless B-meson decays to three-body final states of charged pions and kaons. The analysis uses 81.8 fb(-1) of data collected at the Upsilon(4S) resonance with the BABAR detector at the SLAC PEP-II asymmetric B Factory. We measure the branching fractions B(B+-->pi(+)pi(-)pi(+))=(10.9+/-3.3+/-1.6)x10(-6), B(B+-->K+pi(-)pi(+))=(59.1+/-3.8+/-3.2)x10(-6), and B(B+-->K+K-K+)=(29.6+/-2.1+/-1.6)x10(-6) and provide 90% C.L. upper limits for other decays. We observe no charge asymmetries for these modes.
Published: 2003

41. Observation of the decay B± → π±π0, study of B± → K±π0, and search for B0 → π0 π0

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Borgland, A, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, R, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: Mathematical Sciences, Physical Sciences, Engineering, General Physics
Published: 2003

42. Observation of the Decay B±→π±π0, Study of B±→K±π0, and Search for B0→π0π0

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present results for the branching fractions and charge asymmetries in B+/--->h(+/-)pi(0) (where h(+/-)=pi(+/-),K+/-) and a search for the decay B0-->pi(0)pi(0) using a sample of approximately 88 x 10(6) BBmacr; pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure B(B+/--->pi(+/-)pi(0))=(5.5(+1.0)(-0.9)+/-0.6)x10(-6), where the first error is statistical and the second is systematic. The B+/--->pi(+/-)pi(0) signal has a significance of 7.7sigma including systematic uncertainties. We simultaneously measure the K+/-pi(0) branching fraction to be B(B+/--->K+/-pi(0))=(12.8(+1.2)(-1.1)+/-1.0)x10(-6). The charge asymmetries are Api(+/-)(pi(0))=-0.03(+0.18)(-0.17)+/-0.02 and AK+/-(pi(0))=-0.09+/-0.09+/-0.01. We place a 90% confidence-level upper limit on the branching fraction B(B0-->pi(0)pi(0)) of 3.6 x 10(-6).
Published: 2003

43. Observation of the decay B+/--->pi+/-pi0, study of B+/--->K+/-pi0, and search for B0-->pi0pi0.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We present results for the branching fractions and charge asymmetries in B+/--->h(+/-)pi(0) (where h(+/-)=pi(+/-),K+/-) and a search for the decay B0-->pi(0)pi(0) using a sample of approximately 88 x 10(6) BBmacr; pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure B(B+/--->pi(+/-)pi(0))=(5.5(+1.0)(-0.9)+/-0.6)x10(-6), where the first error is statistical and the second is systematic. The B+/--->pi(+/-)pi(0) signal has a significance of 7.7sigma including systematic uncertainties. We simultaneously measure the K+/-pi(0) branching fraction to be B(B+/--->K+/-pi(0))=(12.8(+1.2)(-1.1)+/-1.0)x10(-6). The charge asymmetries are Api(+/-)(pi(0))=-0.03(+0.18)(-0.17)+/-0.02 and AK+/-(pi(0))=-0.09+/-0.09+/-0.01. We place a 90% confidence-level upper limit on the branching fraction B(B0-->pi(0)pi(0)) of 3.6 x 10(-6).
Published: 2003

44. Observation of a Narrow Meson State Decaying to Ds+π0 at a Mass of 2.32 GeV/c2

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Ford, K, Harrison, TJ, Hawkes, CM, Knowles, DJ, Morgan, SE, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Boyd, JT, Chevalier, N, Cottingham, WN, Kelly, MP, Latham, TE, Mackay, C, Wilson, FF, Abe, K, Cuhadar-Donszelmann, T, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, and Mommsen, RK
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We have observed a narrow state near 2.32 GeV/c(2) in the inclusive D(+)(s)pi(0) invariant mass distribution from e(+)e(-) annihilation data at energies near 10.6 GeV. The observed width is consistent with the experimental resolution. The small intrinsic width and the quantum numbers of the final state indicate that the decay violates isospin conservation. The state has natural spin-parity and the low mass suggests a J(P)=0(+) assignment. The data sample corresponds to an integrated luminosity of 91 fb(-1) recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy e(+)e(-) storage ring.
Published: 2003

45. Evidence for B+ → J/ψpΛ̄ and search for B0 → J/ψpp̄

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, YG, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: Mathematical Sciences, Physical Sciences, Engineering, General Physics
Published: 2003

46. Evidence for B+→J/ψpΛ¯ and Search for B0→J/ψpp¯

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We have performed a search for the decays B+-->J/psip(-)Lambda; and search for B0-->J/psip(-)p. in a data set of (88.9+/-1.0) x 10(6) Upsilon(4S) decays collected by the BABAR experiment at the PEP-II e(+)e(-) storage ring at the Stanford Linear Accelerator Center. Four charged B candidates have been observed with an expected background of 0.21+/-0.14 events. The corresponding branching fraction is (12(+9)(-6)) x 10(-6), where statistical and systematic uncertainties have been combined. The result can be interpreted as a 90% confidence level (C.L.) upper limit of 26 x 10(-6). We also find one B0 candidate, with an expected background of 0.64+/-0.17 events, implying a 90% C.L. upper limit of 1.9 x 10(-6).
Published: 2003

47. Evidence for B+-->J/psip(-)Lambda; and search for B0-->J/psip(-)p.

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Kral, JF, Kukartsev, G, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Golubev, VB, Ivanchenko, VN, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Roethel, W, Stoker, DP, Buchanan, C, Hadavand, HK, and Hill, EJ
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We have performed a search for the decays B+-->J/psip(-)Lambda; and search for B0-->J/psip(-)p. in a data set of (88.9+/-1.0) x 10(6) Upsilon(4S) decays collected by the BABAR experiment at the PEP-II e(+)e(-) storage ring at the Stanford Linear Accelerator Center. Four charged B candidates have been observed with an expected background of 0.21+/-0.14 events. The corresponding branching fraction is (12(+9)(-6)) x 10(-6), where statistical and systematic uncertainties have been combined. The result can be interpreted as a 90% confidence level (C.L.) upper limit of 26 x 10(-6). We also find one B0 candidate, with an expected background of 0.64+/-0.17 events, implying a 90% C.L. upper limit of 1.9 x 10(-6).
Published: 2003

48. Study of the Rare Decays B0→Ds()+π- and B0→Ds()-K+

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Buchanan, C, Chun, S, Hadavand, HK, Hill, EJ, and MacFarlane, DB
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We report evidence for the decays B0-->D(+)(s)pi(-) and B0-->D(-)(s)K+ and the results of a search for B0-->D(*+)(s)pi(-) and B0-->D(*-)(s)K+ in a sample of 84 x 10(6) upsilon(4S) decays into BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. We measure the branching fractions B(B0-->D(+)(s)pi(-))=[3.2+/-0.9(stat)+/-1.0(syst)] x 10(-5) and B(B0-->D(-)(s)K+)=[3.2+/-1.0(stat)+/-1.0(syst)] x 10(-5). We also set 90% C.L. limits B(B0-->D(*+)(s)pi(-))D(*-)(s)K+)
Published: 2003

49. Measurement of the Cabibbo-Kobayashi-Maskawa Matrix Element |Vub| with B→ρeν Decays

Author: Aubert, B, Barate, R, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Pelizaeus, M, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, Kyberd, P, McKemey, AK, Blinov, VE, Bukin, AD, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Mommsen, RK, Stoker, DP, Buchanan, C, and Hadavand, HK
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present a measurement of the branching fraction for the rare decays B-->rhoenu and extract a value for the magnitude of V(ub), one of the smallest elements of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix. The results are given for five different calculations of form factors used to para-metrize the hadronic current in semileptonic decays. Using a sample of 55 x 10(6) BB meson pairs recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring, we obtain B(B0-->rho(-)e(+)nu)=(3.29+/-0.42+/-0.47+/-0.55) x 10(-4) and |V(ub)|=(3.64+/-0.22+/-0.25(+0.39)(-0.56)) x 10(-3), where the uncertainties are statistical, systematic, and theoretical, respectively.
Published: 2003

50. Study of the rare decays B0-->D(()+)(s)pi(-) and B0-->D(()-)(s)K+.

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, 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, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, 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, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Boyd, JT, Chevalier, N, Clark, PJ, Cottingham, WN, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Buchanan, C, Chun, S, Hadavand, HK, Hill, EJ, and MacFarlane, DB
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: We report evidence for the decays B0-->D(+)(s)pi(-) and B0-->D(-)(s)K+ and the results of a search for B0-->D(*+)(s)pi(-) and B0-->D(*-)(s)K+ in a sample of 84 x 10(6) upsilon(4S) decays into BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. We measure the branching fractions B(B0-->D(+)(s)pi(-))=[3.2+/-0.9(stat)+/-1.0(syst)] x 10(-5) and B(B0-->D(-)(s)K+)=[3.2+/-1.0(stat)+/-1.0(syst)] x 10(-5). We also set 90% C.L. limits B(B0-->D(*+)(s)pi(-))D(*-)(s)K+)
Published: 2003

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