Author: "Barlow, NR" / Journal: physical review letters - Searchworks@Jio Institute Digital Library Search Results

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279 results on '"Barlow, NR"'

1. 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

2. 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

3. 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

4. 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

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, 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

16. 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

17. 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

18. 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

19. 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

20. 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

21. 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

22. 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

23. 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

24. 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

25. 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

26. 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

27. 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

28. 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

29. 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

30. 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

31. 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

32. 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

33. 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

34. 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

35. 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

36. 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

37. 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

38. 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

39. Measurement of the Cabibbo-Kobayashi-Maskawa matrix element V(ub) with B-->rhoenu 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, General Physics, Mathematical Sciences, Physical Sciences, Engineering
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

40. Measurement of the B0-->J/psipi+pi- branching fraction.

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 present a measurement of the branching fraction for the decay of the neutral B meson into the final state J/psipi(+)pi(-). The data set contains approximately 56 x 10(6) BB pairs produced at the Upsilon(4S) resonance and recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. The result of this analysis is B(B0-->J/psipi(+)pi(-))=(4.6+/-0.7+/-0.6) x 10(-5), where the first error is statistical and the second is systematic. In addition, we measure B(B0-->J/psirho(0))=(1.6+/-0.6+/-0.4) x 10(-5).
Published: 2003

41. Measurements of branching fractions and CP-violating asymmetries in B0 → π+π-, K+π-, K+K- decays

Author: Aubert, B, 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, 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, YI, 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: hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present measurements of branching fractions and CP-violating asymmetriesfor neutral B meson decays to two-body final states of charged pions and kaonsbased on a sample of about 88 million Y(4S)-->BB decays. From atime-independent fit we measure the charge-averaged branching fractionsB(B0-->pi+pi-) = (4.7 +/- 0.6 +/- 0.2) x 10^-6, B(B0-->K+pi-) = (17.9 +/- 0.9+/- 0.7) x 10^-6, and the direct CP-violating charge asymmetry A(Kpi) = -0.102+/- 0.050 +/- 0.016; [-0.188,-0.016], where the ranges in square bracketsindicate the 90% confidence intervals. From a time-dependent fit we measure theB0-->pi+pi- CP-violating parameters Spipi = 0.02 +/- 0.34 +/- 0.05;[-0.54,+0.58] and Cpipi = -0.30 +/- 0.25 +/- 0.04; [-0.72,+0.12].
Published: 2002

42. Measurements of Branching Fractions and CP-Violating Asymmetries in B0→π+π-, K+π-, K+K- Decays

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 present measurements of branching fractions and CP-violating asymmetries for two-body neutral B meson decays to charged pions and kaons based on a sample of about 88x10(6) Upsilon(4S)-->BB decays. From a time-independent fit we measure the charge-averaged branching fractions B(B0-->pi+pi-)=(4.7+/-0.6+/-0.2)x10(-6), B(B0-->K+pi-)=(17.9+/-0.9+/-0.7)x10(-6), and the direct CP-violating charge asymmetry A(Kpi)=-0.102+/-0.050+/-0.016 [-0.188,-0.016], where the ranges in square brackets indicate the 90% confidence intervals. From a time-dependent fit we measure the B0-->pi+pi- CP-violating parameters S(pipi)=0.02+/-0.34+/-0.05 [-0.54,+0.58] and C(pipi)=-0.30+/-0.25+/-0.04 [-0.72,+0.12].
Published: 2002

43. Measurements of branching fractions and CP-violating asymmetries in B0-->pi+pi-, K+pi-, K+K- decays.

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 present measurements of branching fractions and CP-violating asymmetries for two-body neutral B meson decays to charged pions and kaons based on a sample of about 88x10(6) Upsilon(4S)-->BB decays. From a time-independent fit we measure the charge-averaged branching fractions B(B0-->pi+pi-)=(4.7+/-0.6+/-0.2)x10(-6), B(B0-->K+pi-)=(17.9+/-0.9+/-0.7)x10(-6), and the direct CP-violating charge asymmetry A(Kpi)=-0.102+/-0.050+/-0.016 [-0.188,-0.016], where the ranges in square brackets indicate the 90% confidence intervals. From a time-dependent fit we measure the B0-->pi+pi- CP-violating parameters S(pipi)=0.02+/-0.34+/-0.05 [-0.54,+0.58] and C(pipi)=-0.30+/-0.25+/-0.04 [-0.72,+0.12].
Published: 2002

44. Erratum: Measurement of the B0 lifetime with partially reconstructed B0 → D*- ℓ+ vℓ decays (Phys. Rev. Lett. (2002) 89 (011802))

Author: Aubert, B, Boutigny, D, Gaillard, JM, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Clark, AR, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, YG, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, and MacFarlane, DB
Subjects: Mathematical Sciences, Physical Sciences, Engineering, General Physics
Published: 2002

45. Measurement of the Branching Fraction and CP Content for the Decay B0→D+D-

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, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, 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, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O’Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: Clinical Research, BABAR, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We report a measurement of the branching fraction of the decay B0-->D(*+)D(*-) and of the CP-odd component of its final state using the BABAR detector. With data corresponding to an integrated luminosity of 20.4 fb (-1) collected at the Upsilon(4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B0-->D(*+)D(*-) with an estimated background of 6.2+/-0.5 events. From these events, we determine the branching fraction to be B(B0-->D(*+)D(*-))=[8.3+/-1.6(stat)+/-1.2(syst)]x10(-4). The measured CP-odd fraction of the final state is 0.22+/-0.18(stat)+/-0.03(syst).
Published: 2002

46. Measurement of the B0 Lifetime with Partially Reconstructed B0→D*-ℓ+νℓ Decays

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, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Clark, AR, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, and MacFarlane, DB
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.
Published: 2002

47. Measurement of the B(0) lifetime with partially reconstructed B(0)-->D(-)l(+)nu(l) decays.

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, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Clark, AR, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, and MacFarlane, DB
Subjects: BABAR Collaboration, hep-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract: The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.
Published: 2002

48. Search for the Rare Decays B→Kl+l- and B→K*l+l-

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Palano, A, Pompili, A, Chen, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Clark, AR, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: BABAR Collaboration, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We present results from a search for the flavor-changing neutral current decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C.L. upper limits B(B-->Kl(+)l(-))K(*)l(+)l(-))Ke+/-mu(-/+) and B-->K(*)e(+/-)mu(-/+).
Published: 2002

49. Search for T and CP Violation in B0-B¯0 Mixing with Inclusive Dilepton Events

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, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, 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, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: We report the results of a search for T and CP violation in B0-B-0 mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between l+l+ and l-l- events allows us to compare the probabilities for B-0-->B0 and B0-->B-0 oscillations and thus probe T and CP invariance. Using a sample of 23 x 10(6) BB- pairs, we measure a same-sign dilepton asymmetry of A(T/CP) = [0.5+/-1.2(stat)+/-1.4(syst)]%. For the modulus of the ratio of complex mixing parameters p and q, we obtain q/p = 0.998+/-0.006(stat)+/-0.007(syst).
Published: 2002

50. Measurement of B0-B¯ 0 Flavor Oscillations in Hadronic B0 Decays

Author: Aubert, B, Boutigny, D, Gaillard, J-M, Hicheur, A, Karyotakis, Y, Lees, JP, Robbe, P, Tisserand, V, Palano, A, Pompili, A, Chen, GP, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Stugu, B, Abrams, GS, Borgland, AW, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Clark, AR, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kral, JF, LeClerc, C, Levi, ME, Lynch, G, Oddone, PJ, Pripstein, M, Roe, NA, Romosan, A, Ronan, MT, Shelkov, VG, Telnov, AV, Wenzel, WA, Harrison, TJ, Hawkes, CM, Knowles, DJ, O'Neale, SW, Penny, RC, Watson, AT, Watson, NK, Deppermann, T, Goetzen, K, Koch, H, Kunze, M, Lewandowski, B, Peters, K, Schmuecker, H, Steinke, M, Barlow, NR, Bhimji, W, Chevalier, N, Clark, PJ, Cottingham, WN, Foster, B, Mackay, C, Wilson, FF, Abe, K, Hearty, C, Mattison, TS, McKenna, JA, Thiessen, D, Jolly, S, McKemey, AK, Blinov, VE, Bukin, AD, Bukin, DA, Buzykaev, AR, Golubev, VB, Ivanchenko, VN, Korol, AA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Telnov, VI, Yushkov, AN, Best, D, Chao, M, Kirkby, D, Lankford, AJ, Mandelkern, M, McMahon, S, Stoker, DP, Arisaka, K, Buchanan, C, Chun, S, MacFarlane, DB, and Prell, S
Subjects: hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract: Flavor oscillations of neutral B mesons have been studied in e+e- annihilation data collected with the BABAR detector at center-of-mass energies near the upsilon(4S) resonance. The data sample used for this purpose consists of events in which one B0 meson is reconstructed in a hadronic decay mode, while the flavor of the recoiling B0 is determined with a tagging algorithm that exploits the correlation between the flavor of the heavy quark and the charges of its decay products. From the time development of the observed mixed and unmixed final states, we determine the B0-B-0 oscillation frequency deltamd to be 0.516+/-0.016(stat)+/-0.010(syst) ps-1.
Published: 2002

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