Author: "P. Mir" / Journal: physical review d - Searchworks@Jio Institute Digital Library Search Results

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180 results on '"P. Mir"'

1. Measurement of the τ-→ηπ-π+π-ντ branching fraction and a search for a second-class current in the τ-→η′(958)π-ντ decay

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, Winstrom, LO, and Chen, E
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: The τ-→ηπ-π+π-ντ decay with the η→γγ mode is studied using 384fb-1 of data collected by the BABAR detector. The branching fraction is measured to be (1.60±0. 05±0.11)×10-4. It is found that τ-→f1(1285)π- ντ→ηπ-π+π-ντ is the dominant decay mode with a branching fraction of (1.11±0.06±0.05)×10-4. The first error on the branching fractions is statistical and the second systematic. Note that no particle identification algorithm is applied to the charged tracks to distinguish pions from kaons. In addition, a 90% confidence level upper limit on the branching fraction of the τ-→η′(958)π-ντ decay is measured to be 7.2×10-6. This last decay proceeds through a second-class current and is expected to be forbidden in the limit of isospin symmetry. © 2008 The American Physical Society.
Published: 2008

2. Erratum: The e+e-→2(π+π-)π0, 2(π+π-)η, K+K-π+π-π0 and K+K-π+π-η cross sections measured with initial-state radiation [Phys. Rev. D 76, 092005 (2007)]

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Published: 2008

3. Measurements of e+e-→K+K-η, K+K-π0, and Ks0K±π∓ cross sections using initial state radiation events

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: This paper reports measurements of processes: e+e- →γKS0K±π, e+e-→γK+K-π0, e+e-→γ η, and e+e-→γ π0. The initial-state radiated photon allows to cover the hadronic final state in the energy range from thresholds up to ≈4.6GeV. The overall size of the data sample analyzed is 232fb-1, collected by the BABAR detector running at the PEP-II e+e- storage ring. From the Dalitz plot analysis of the KS0K±π final state, moduli, and relative phase of the isoscalar and the isovector components of the e+e-→KK*(892) cross section are determined. Parameters of and ρ recurrences are also measured, using a global fitting procedure which exploits the interconnection among amplitudes, moduli, and phases of the e+e-→KS0K±π, K+K-π0, η final states. The cross section for the OZI-forbidden process e+e-→ π0, and the J/ψ branching fractions to KK*(892) and K+K-η are also measured. © 2008 The American Physical Society.
Published: 2008

4. Determination of the form factors for the decay B0→D*-l+νl and of the CKM matrix element |Vcb|

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, and Lockman, WS
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a combined measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vcb| and of the parameters ρ2, R1(1), and R2(1), which fully characterize the form factors for the B0→D*- +ν decay in the framework of heavy-quark effective field theory. The results, based on a selected sample of about 52800 B0→D*- +ν decays, recorded by the BABAR detector, are ρ2=1.157±0.094±0.027, R1(1)=1. 327±0.131±0.043, R2(1)=0.859±0.077±0.021, and F(1)|Vcb|=(34.7±0.4±1.0)×10-3. The first error is the statistical and the second is the systematic uncertainty. Combining these measurements with the previous BABAR measurement of the form factors, which employs a different fit technique on a partial sample of the data, we improve the statistical precision of the result, ρ2=1.191±0.048±0.028, R1(1)=1.429±0.061±0.044, R2(1)=0.827±0.038±0.022, and F(1)|Vcb|=(34.4±0.3±1.1)×10-3. Using lattice calculations for the axial form factor F(1), we extract |Vcb|=(37.4±0. 3±1.2±1.41.2)×10-3, where the third error is due to the uncertainty in F(1). We also present a measurement of the exclusive branching fraction, B=(4.69±0.04±0.34)%. © 2008 The American Physical Society.
Published: 2008

5. Search for decays of B0 mesons into e+e-, μ+μ- and e±μ∓ final states

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a search for the decays B0→e+e-, B0→μ+μ-, and B0→e±μ using data collected with the BABAR detector at the PEP-II e+e- collider at SLAC. Using a data set corresponding to 384×106 BB̄ pairs, we do not find evidence of any of the three decay modes. We obtain upper limit on the branching fractions, at 90% confidence level, of B(B0→e+e-)
Published: 2008

6. Study of B¯→ΞcΛ¯c- and B¯→Λc+Λ¯c-K¯ decays at BABAR

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report measurements of B-meson decays into two- and three-body final states containing two charmed baryons using a sample of 230×106 Υ(4S)→BB̄ decays. We find significant signals in two modes, measuring branching fractions B(B-→Λc+Λ̄c-K-)=(1. 14±0.15±0.17±0.60)×10-3 and B(B- →Ξc0Λ̄c-)×B(Ξc0→Ξ-π+)=(2.08±0. 65±0.29±0.54)×10-5, where the uncertainties are statistical, systematic, and from the branching fraction B(Λc+→pK-π+), respectively. We also set upper limits at the 90% confidence level on two other modes: B(B̄0→Ξc+Λ̄c-)×B(Ξc+→Ξ- π+π+)
Published: 2008

7. Publisher’s Note: Search for the rare charmless hadronic decay B+→a0+π0 [Phys. Rev. D 77, 011101 (2008)]

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Published: 2008

8. Search for the decays B0→e+e-γ and B0→μ+μ-γ

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present results of a search for the decays B0→ℓ+ℓ-γ (ℓ=e or μ). The search is performed using 320×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the PEP-II B Factory at SLAC. We find no significant signal and set the following branching fraction upper limits at the 90% confidence level: B(B0→e+e-γ)
Published: 2008

9. Measurement of the CP-violating asymmetries in B0→Ks0π0 and of the branching fraction B0→K0π0

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Brain Disorders, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a measurement of the time-dependent CP-violating asymmetries in B0→KS0π0 decays based on 383×106 Υ(4S)→BB̄ events collected by the BABAR experiment at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. We measure the direct CP-violating asymmetry CKS0π0=0.24±0.15±0.03 and the CP-violating asymmetry in the interference between mixing and decay SKS0π0=0.40±0. 23±0.03, where the first errors are statistical and the second are systematic. On the same sample, we measure the decay branching fraction, obtaining B(B0→K0π0)=(10.3±0.7±0.6)×10-6. © 2008 The American Physical Society.
Published: 2008

10. Study of resonances in exclusive B decays to D¯()D()K

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a study of resonances in exclusive decays of B mesons to D̄(*)D(*)K. We report the observation of the decays B→D̄(*)Ds1+(2536) where the Ds1+(2536) is reconstructed in the D*0K+ and D*+KS0 decay channels. We report also the observation of the decays B→ψ(3770)K where the ψ(3770) decays to D̄0D0 and D-D+. In addition, we present the observation of an enhancement for the D̄*0D0 invariant mass in the decays B→D̄*0D0K, at a mass of (3875.1-0.5+0.7±0.5)MeV/c2 with a width of (3.0-1.4+1.9±0. 9)MeV (the first errors are statistical and the second are systematic). Branching fractions and spin studies are shown for the three resonances. The results are based on 347fb-1 of data collected with the BABAR detector at the PEP-II B factory. © 2008 The American Physical Society.
Published: 2008

11. Search for B+→τ+ν decays with hadronic B tags

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a search for the decay B+→τ+ν using 383×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the SLAC PEP-II B Factory. We select a sample of events with one completely reconstructed tag B in a hadronic decay mode (B-→D(*)0X-), and examine the rest of the event to search for a B+→τ+ν decay. We identify the τ lepton in the following modes: τ+→e+νν̄, τ+→μ+νν̄, τ+→π+ν̄, and τ+→π+π0ν̄. We find a 2.2σ excess in data and measure a branching fraction of B(B+→τ+ν)=(1.8-0.8+0.9(stat.) ±0.4(bkg.syst.)±0.2(othersyst.))×10-4. We calculate the product of the B meson decay constant fB and |Vub| to be fB•|Vub|=(10.1-2. 5+2.3(stat.)-1.5+1.2(syst.))×10-4GeV. © 2008 The American Physical Society.
Published: 2008

12. Study of excited charm-strange baryons with evidence for new baryons Ξc(3055)+ and Ξc(3123)+

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, and Schumm, BA
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a study of excited charm-strange baryon states produced in e+e- annihilations at or near a center-of-mass energy of 10.58 GeV, in a data sample with an integrated luminosity of 384fb-1 recorded with the BABAR detector at the PEP-II e+e- storage rings at the Stanford Linear Accelerator Center. We study strong decays of charm-strange baryons to Λc+KS0, Λc+K-, Λc+K-π+, Λc+KS0π-, Λc+KS0π-π+, and Λc+K-π+π-. This study confirms the existence of the states Ξc(2980)+, Ξc(3077)+, and Ξc(3077)0, with a more accurate determination of the Ξc(2980)+ mass and width. We also present evidence for two new states, Ξc(3055)+ and Ξc(3123)+, decaying through the intermediate- resonant modes Σc(2455)++K- and Σc(2520)++K-, respectively. For each of these baryons, we measure the yield in each final state, determine the statistical significance, and calculate the product of the production cross section and branching fractions. We also measure the masses and widths of these excited charm-strange baryons. © 2008 The American Physical Society.
Published: 2008

13. Publisher’s Note: Search for the rare charmless hadronic decay B+→a0+π0 [Phys. Rev. D 77, 011101 (2008)]

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Published: 2008

14. Search for the rare charmless hadronic decay B+→a0+π0

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a search for B decays to a charged scalar meson a+0 and a π0 where the a+0 decays to an π meson and a π+. The analysis was performed on a data sample consisting of 383×106 BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find no significant signal and set an upper limit on the product branching fraction B(B+ → + → a + 0 π 0 ) × B(a+0 → ηπ+) of 1.4×10-6 at the 90% confidence level.
Published: 2008

15. Study of the exclusive initial-state-radiation production of the DD¯ system

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Vaccine Related, Biodefense, Prevention, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of DD̄ events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384fb-1 and was recorded by the BABAR experiment at the PEP-II storage ring. The DD̄ mass spectrum shows clear evidence of the ψ(3770) plus other structures near 3.9, 4.1, and 4.4GeV/c2. No evidence for Y(4260)→DD̄ is observed, leading to an upper limit of B(Y(4260)→DD̄)/B(Y(4260)→J/ψπ+π-)
Published: 2007

16. Improved measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0→D+D-

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: We present an updated measurement of the CP-odd fraction and the time-dependent CP asymmetries in the decay B0→D*+D*- using (383±4)×106BB̄ pairs collected with the BABAR detector. We determine the CP-odd fraction to be 0.143±0.034(stat)±0.008(syst). The time-dependent CP asymmetry parameters are determined to be C+=-0.05±0.14(stat)±0.02(syst) and S+=-0.72±0.19(stat) ±0.05(syst). The nonzero value of the measured S+ indicates the evidence of CP violation at the 3.7σ confidence level. © 2007 The American Physical Society.
Published: 2007

17. Search for b→u transitions in B-→[K+π-π0]DK-

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We search for decays of a B meson into a neutral D meson and a charged kaon, with the D meson decaying into a charged kaon, a charged pion, and a neutral pion. This final state can be reached through the b→c transition B-→D0K- followed by the doubly Cabibbo-suppressed D0→K+π-π0, or the b→u transition B-→D̄0K- followed by the Cabibbo-favored D̄0→K+π-π0. The interference of these two amplitudes is sensitive to the angle γ of the unitarity triangle. We present results based on 226×106 e+e-→Υ(4S)→BB̄ events collected with the BABAR detector at SLAC. We find no significant evidence for these decays and we set a limit RADS≡Γ([K+π-π0]DK-)+Γ([K-π+π0]DK+) Γ([K+π-π0]DK+)+Γ([K-π+π0]DK-)
Published: 2007

18. The e+e-→2(π+π-)π0, 2(π+π-)η, K+K-π+π-π0 and K+K-π+π-η cross sections measured with initial-state radiation

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Barrett, M, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Prevention, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We study the processes e+e-→2(π+π-)π0γ, 2(π+π-)ηγ, K+K-π+π-π0γ and K+K-π+π- ηγ with the hard photon radiated from the initial state. About 20000, 4300, 5500, and 375 fully reconstructed events, respectively, are selected from 232fb-1 of BABAR data. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy, so that the obtained cross sections from the threshold to about 5 GeV can be compared with corresponding direct e+e- measurements, currently available only for the ηπ+π- and ωπ+π- submodes of the e+e-→2(π+π-)π0 channel. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from e+e-→ω(782)π+π- and study the ω(1420) and ω(1650) resonances. In the charmonium region, we observe the J/ψ in all these final states and several intermediate states, as well as the ψ(2S) in some modes, and we measure the corresponding branching fractions. © 2007 The American Physical Society.
Published: 2007

19. Evidence for the B0→pp¯K0 and B+→ηcK+ decays and study of the decay dynamics of B meson decays into pp¯h final states

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Soni, N, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: With a sample of 232×106 Υ(4S)→BB̄ events collected with the BABAR detector, we study the decays of B mesons to pp̄h final states, where h=π+, KS0, K*0, or K*+. We report evidence for the B0→pp̄K*0 decay, with a branching fraction (1.47±0. 45(stat)±0.40(syst))×10-6, and for the B+→ηcK*+ decay, with the branching fraction of B(B+→ηcK*+) ×B(ηc→pp̄)=(1.57-0.45+0.56(stat)-0.36+0.46(syst)) ×10-6, and provide improved measurements of the branching fractions of the other modes of this type. We also report the measurements of the charge asymmetry consistent with zero in the B+→pp̄π+, B0→pp̄K*0, and B+→pp̄K*+ modes. No evidence is found for the pentaquark candidate Θ+ in the mass range 1.52 to 1.55GeV/c2, decaying into pKS0, or the glueball candidate fJ(2220) in the mass range 2.2
Published: 2007

20. Study of B0→π0π0, B±→π±π0, and B±→K±π0 decays, and isospin analysis of B→ππ decays

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present updated measurements of the branching fractions and CP asymmetries for B0→π0π0, B±→π±π0, and B±→K±π0. Based on a sample of 383×106 Υ(4S)→BB̄ decays collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we measure B(B0→π0π0)=(1. 47±0.25±0.12)×10-6, B(B±→π±π0)=(5. 02±0.46±0.29)×10-6, and B(B±→K±π0)= (13.6±0.6±0.7)×10-6. We also measure the CP asymmetries Cπ0π0=-0.49±0.35±0.05, Aπ±π0=0.03±0. 08±0.01, and AK±π0=0.030±0.039±0.010. Finally, we present bounds on the Cabibbo-Kobayashi-Maskawa angle α using isospin relations. © 2007 The American Physical Society.
Published: 2007

21. Study of e+e-→ΛΛ¯, ΛΣ¯0, Σ0Σ¯0 using initial state radiation with BABAR

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We study the e+e-→ΛΛ̄γ, ΛΣ̄ 0γ, Σ0Σ̄0γ processes using 230fb-1 of integrated luminosity collected by the BABAR detector at e+e- center-of-mass energy of 10.58 GeV. From the analysis of the baryon-antibaryon mass spectra the cross sections for e+e-→ΛΛ̄, ΛΣ̄0, Σ0Σ̄0 are measured in the dibaryon mass range from threshold up to 3GeV/c2. The ratio of electric and magnetic form factors, |GE/GM|, is measured for e+e-→ΛΛ̄, and limits on the relative phase between Λ form factors are obtained. We also measure the J/ψ→ΛΛ̄, Σ0Σ̄0, and ψ(2S)→ΛΛ̄ branching fractions. © 2007 The American Physical Society.
Published: 2007

22. Measurement of CP asymmetries in B0→KS0KS0KS0 decays

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, and Flacco, CJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present measurements of the time-dependent CP-violating asymmetries in B0→KS0KS0KS0 decays based on 384×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We obtain the CP asymmetry parameters C=0.02±0.21±0.05 and S=-0.71±0.24±0.04, where the first uncertainties are statistical and the second systematic. These results are consistent with standard model expectations. © 2007 The American Physical Society.
Published: 2007

23. Search for the decay B+→K¯*0(892)K+

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, and Flacco, CJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report on a search for the process B+→K̄*0(892)K+ using 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. From a signal yield of 25±13[stat]±7[syst] B+→K̄*0(892)(→K-π+)K+ events, we place an upper limit on the branching fraction B(B+→K̄ *0(892)K+) of 1.1×10-6, at the 90% confidence level. © 2007 The American Physical Society.
Published: 2007

24. Search for prompt production of χc and X(3872) in e+e- annihilations

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Williams, DC, and Wilson, MG
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Prevention, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: We have searched for prompt production of χc1, χc2 and X(3872) in continuum e+e- annihilations using a 386fb-1 data sample collected around s=10.6GeV with the BABAR detector using the γJ/ψ decay mode. After accounting for the feed-down from ψ(2S)→γχc1,2, no significant signal for prompt χc1,2 production is observed. We present improved upper limits at 90% confidence level on the production cross sections of 77fb for χc1 and 79fb for χc2, for events where the χc momentum exceeds 2.0 GeV and there are at least three additional charged tracks. These limits are consistent with NRQCD predictions. We also set an upper limit on the prompt production of X(3872) through the decay X(3872)→γJ/ψ. © 2007 The American Physical Society.
Published: 2007

25. Measurements of the branching fractions of B0→K0K+K-, B0→K0π+K-, B0→K0K+π-, and B0→K0π+π-

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Koch, H, Schroeder, T, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Vitug, GM, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Branching fraction measurements of charmless B 0 → K *0 h+1 h- 2 (h1,2 = K, π) decays are pre-sented, using a data sample of 383 million σ(4S) → BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. The results are: B(B 0 → K *0 K+K-) = (27.5 ± 1.3 ± 2.2) × 10-6, B(B 0 → K z.ast;0 +K-) = (4.6 ± 1.1 ± 0.8) × 10-6 and B(B 0 → K z.ast;0 +π-) = (54.5 ± 2.9 ± 4.3) × 10-6. The first errors quoted are statistical and the second are systematic. An upper limit is set for B(B 0 → K z.ast;0 +π-) < 2.2 × 10-6 at 90% confidence level. We also present measurements of CP-violating asymmetries for the observed decays.
Published: 2007

26. Study of B0→ρ+ρ- decays and constraints on the CKM angle α

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, and Lockman, WS
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present results from an analysis of B0→ρ+ρ- decays using (383.6±4.2)×106 BB̄ pairs collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The measurements of the B0→ρ+ρ- branching fraction, longitudinal polarization fraction fL, and the CP-violating parameters Slong and Clong are as follows: B(B0→ρ+ρ-)=(25.5±2.1(stat)-3.9+3.6(syst))×10-6, fL=0.992±0.024(stat)-0.013+0.026(syst), Slong=-0.17±0.20(stat)-0. 06+0.05(syst), Clong=0.01±0.15(stat)±0.06(syst). We determine the unitarity triangle angle α, using an isospin analysis of B→ρρ decays. One of the two solutions, α=[73.1,117.0]° at 68% confidence level, is compatible with standard model-based fits of existing data. Constraints on the unitarity triangle are also evaluated using an SU(3) symmetry-based approach. © 2007 The American Physical Society.
Published: 2007

27. Measurement of the τ-→K-π0ντ branching fraction

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Osipenkov, IL, Ronan, MT, Tackmann, K, Tanabe, T, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, and Seiden, A
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: A measurement of the τ-→K-π0ντ branching fraction has been made using 230.2fb-1 of data recorded by the BABAR detector at the PEP-II e+e- collider, located at the Stanford Linear Accelerator Center (SLAC), at a center-of-mass energy s close to 10.58 GeV. We measure B(τ-→K- π0ντ)=(0.416±0.003(stat)±0.018(syst))%. © 2007 The American Physical Society.
Published: 2007

28. Search for B+→τ+ν

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Williams, DC, and Wilson, MG
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a search for the decay B+→τ+ν using 383×106BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the SLAC PEP-II B-Factory. A sample of events with one reconstructed semileptonic B decay (B-→D0 -ν̄ X) is selected, and in the recoil a search for B+→τ+ν is performed. The τ is identified in the following channels: τ+→e+νν̄, τ+→μ+νν̄, τ+→π+ν̄, and τ+→π+π0ν̄. We measure a branching fraction of B(B+→τ+ν)=(0.9±0.6(stat.)±0.1(syst.))×10-4. In the absence of a significant signal, we calculate an upper limit at the 90% confidence level of B(B+→τ+ν)
Published: 2007

29. Search for B0→ϕ(K+π-) decays with large K+π- invariant mass

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Motivated by the polarization anomaly in the B→ (1020)K*(892) decay, we extend our search for other K* final states in the decay B0→ (1020)K*0 with the K*0→K+π- invariant mass above 1.6 GeV. The final states considered include the K*(1680)0, K3*(1780)0, K4*(2045)0, and a Kπ spin-zero nonresonant component. We also search for B0→ D̄0 decay with the same final state. The analysis is based on a sample of about 384×106 BB̄ pairs recorded with the BABAR detector. We place upper limits on the branching fractions B(B0→ K*(1680)0)
Published: 2007

30. Measurement of the hadronic form factor in D0→K-e+νe decays

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: The shape of the hadronic form factor f+(q2) in the decay D0→K-e+νe has been measured in a model independent analysis and compared with theoretical calculations. We use 75fb-1 of data recorded by the BABAR detector at the PEP-II electron-positron collider. The corresponding decay branching fraction, relative to the decay D0→K-π+, has also been measured to be RD=B(D0→K-e+νe(γ))/B(D0→K-π+(γ))=0.927±0. 007±0.012. From these results, and using the present world average value for B(D0→K-π+), the normalization of the form factor at q2=0 is determined to be f+(0)=0.727±0.007±0.005±0.007 where the uncertainties are statistical, systematic, and from external inputs, respectively. © 2007 The American Physical Society.
Published: 2007

31. Measurement of the relative branching fractions of B¯→D/D*/D**l-ν¯l decays in events with a fully reconstructed B meson

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, and Lockman, WS
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We determine the relative branching fractions of semileptonic B decays to charmed final states. The measurement is performed on the recoil from a fully reconstructed B meson in a sample of 362×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector. A simultaneous fit to a set of discriminating variables is performed on a sample of B̄→DX-ν̄ decays to determine the contributions from the different channels. We measure Γ(B-→D-ν̄)/Γ(B-→DX-ν̄)=0.227±0. 014±0.016, Γ(B-→D*-ν̄)/Γ(B-→DX- ν̄)=0.582±0.018±0.030, and Γ(B-→D **-ν̄)/Γ(B-→DX-ν̄)=0.191±0. 013±0.019 for the charged B sample, and Γ(B0̄→D- ν̄)/Γ(B0̄→DX-ν̄)=0.215±0.016±0. 013, Γ(B0̄→D*-ν̄)/Γ(B0̄→DX- ν̄)=0.537±0.031±0.036, and Γ(B0̄→ D**-ν̄)/Γ(B0̄→DX-ν̄)=0.248±0. 032±0.030 for the neutral B sample, where uncertainties are statistical and systematic, respectively. © 2007 The American Physical Society.
Published: 2007

32. Branching fraction and CP-violation charge asymmetry measurements for B-meson decays to ηK±, ηπ±, η′K, η′π±, ωK, and ωπ±

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, Wilson, MG, and Winstrom, LO
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present measurements of the branching fractions for B0-meson decays to η′K0 and ωK0, and of the branching fractions and CP-violation charge asymmetries for B+-meson decays to ηπ+, ηK+, η′π+, η′K+, ωπ+, and ωK+. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 383×106 BB̄ pairs produced in e+e- annihilation. The measurements agree with previous results; we find no evidence for direct CP violation. © 2007 The American Physical Society.
Published: 2007

33. Branching fraction and charge asymmetry measurements in B→J/ψππ decays

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, and Lockman, WS
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We study the decays B0→J/ψπ+π- and B+→J/ ψπ+π0, including intermediate resonances, using a sample of 382×106 BB̄ pairs recorded by the BABAR detector at the PEP-II e+e- B factory. We measure the branching fractions B(B0→J/ψρ0)=(2. 7±0.3±0.2)×10-5 and B(B+→J/ψρ+)=(5.0±0. 7±0.3)×10-5. We also set the following upper limits at the 90% confidence level: B(B0→J/ψπ+π-nonresonant)
Published: 2007

34. Measurement of decay amplitudes of B→J/ψK, ψ(2S)K, and χc1K* with an angular analysis

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, and Lockman, WS
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: We perform the first three-dimensional measurement of the amplitudes of B→ψ(2S)K* and B→χc1K* decays and update our previous measurement for B→J/ψK*. We use a data sample collected with the BABAR detector at the PEP-II storage ring, corresponding to 232×106 BB̄ pairs. The longitudinal polarization of decays involving a JPC=1++ χc1 meson is found to be larger than that with a 1 - J/ψ or ψ(2S) meson. No direct CP-violating charge asymmetry is observed. © 2007 The American Physical Society.
Published: 2007

35. Measurement of CP-violating asymmetries in B0→(ρπ)0 using a time-dependent Dalitz plot analysis

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Ofte, I, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, and Flacco, CJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report a measurement of CP-violating asymmetries in B0→(ρπ) 0→π+π-π0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375×106 Υ(4S) →BB̄ decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B0 meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle α of the unitarity triangle. © 2007 The American Physical Society.
Published: 2007

36. e+e-→K+K-π+π-, K+K-π0π0 and K+K-K+K- cross sections measured with initial-state radiation

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Prevention, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We study the processes e+e-→K+K-π+π-γ, K+K-π0π0γ and K+K-K+K-γ, where the photon is radiated from the initial state. About 34600, 4400 and 2300 fully reconstructed events, respectively, are selected from 232fb-1 of BABAR data. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy, so that the K+K-π+π-γ data can be compared with direct measurements of the e+e-→K+K-π+π- reaction; no direct measurements exist for the e+e-→K+K-π0π0 or e+e-→K+K-K+K- reactions. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from e+e-→ (1020)f0(980) and study its structure near threshold. In the charmonium region, we observe the J/ψ in all three final states and several intermediate states, as well as the ψ(2S) in some modes, and measure the corresponding branching fractions. We see no signal for the Y(4260) and obtain an upper limit of BY(4260)→ π+π- •ΓeeY
Published: 2007

37. Observation of B+→ρ+K0 and measurement of its branching fraction and charge asymmetry

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present the first observation of the decay B+→ρ+K0, using a data sample of 348fb-1 collected at the Υ(4S) resonance with the BABAR detector. The branching fraction and charge asymmetry are measured to be (8.0-1.3+1.4±0.6)×10-6 and (-12.2±16.6±2.0)%, respectively, where the first uncertainty is statistical and the second is systematic. The charge asymmetry is defined by Ach=(ΓB - ΓB+)/(ΓB-+ΓB+) with ΓB± the B± decay rate. The significance of the observed branching fraction, including systematic uncertainties, is 7.9 standard deviations. © 2007 The American Physical Society.
Published: 2007

38. Search for D0-D¯0 mixing using doubly flavor tagged semileptonic decay modes

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We have searched for D0-D̄0 mixing in D*+→π+D0 decays with D0→K(*)eν in a sample of e+e-→cc̄ events produced near 10.58 GeV. The charge of the slow pion from charged D* decay tags the charm flavor at production, and it is required to be consistent with the flavor of a fully reconstructed second charm decay in the same event. We observe 3 mixed candidates compared to 2.85 background events expected from simulation. We ascribe a 50% systematic uncertainty to this expected background rate. We find a central value for the mixing rate of 0.4×10-4. Using a frequentist method, we set corresponding 68% and 90% confidence intervals at (-5.6,7.4)×10-4 and (-13,12)×10-4, respectively. © 2007 The American Physical Society.
Published: 2007

39. Amplitude analysis of the decay D0→K-K+π0

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Using 385fb-1 of e+e- collisions, we study the amplitudes of the singly Cabibbo-suppressed decay D0→K-K+π0. We measure the strong phase difference between the D̄0 and D0 decays to K*(892)+K- to be -35.5°±1.9°(stat)±2.2°(syst), and their amplitude ratio to be 0.599±0.013(stat)±0.011(syst). We observe contributions from the Kπ and K-K+ scalar and vector amplitudes, and analyze their angular moments. We find no evidence for charged κ, nor for higher spin states. We also perform a partial-wave analysis of the K-K+ system in a limited mass range. © 2007 The American Physical Society.
Published: 2007

40. Search for neutral B-meson decays to a0π, a0K, ηρ0, and ηf0

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J Garra, Grauges, E, Lopez, L, Palano, A, Eigen, G, Stugu, B, Sun, L, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Schroeder, T, Steinke, M, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Liu, F, Long, O, Shen, BC, Zhang, L, Paar, HP, Rahatlou, S, Sharma, V, Berryhill, JW, Campagnari, C, Cunha, A, Dahmes, B, Hong, TM, Kovalskyi, D, Richman, JD, Beck, TW, Eisner, AM, Flacco, CJ, Heusch, CA, Kroseberg, J, Lockman, WS, Schalk, T, Schumm, BA, Seiden, A, and Williams, DC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present a search for B0 decays to charmless final states involving an η meson, a charged pion, and a second charged pion or kaon. The data sample corresponds to 383×106 BB̄ pairs collected with the BABAR detector operating at the PEP-II asymmetric-energy B factory at SLAC. We find no significant signals and determine the following 90% C.L. upper limits: B(B0→a0-π+)×B(a0-→ηπ-)
Published: 2007

41. Measurement of the B±→ρ±π0 branching fraction and direct CP asymmetry

Author: Aubert, B, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Best, DS, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, Zhang, L, Hadavand, HK, and Hill, EJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: We present improved measurements of the branching fraction and CP asymmetry for the process B±→ρ±π0. The data sample corresponding to 211fb-1 comprises 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are measured using an extended maximum likelihood fitting method. The branching fraction and CP asymmetry are found to be B(B±→ρ±π0)=[10.2±1.4(stat)±0.9(syst)] ×10-6 and ACP(B±→ρ±π0)=-0.01±0.13(stat) ±0.02(syst). © 2007 The American Physical Society.
Published: 2007

42. Study of inclusive B- and B¯0 decays to flavor-tagged D, Ds, and Λc+

Author: Aubert, B, Barate, R, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Pappagallo, M, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Day, CT, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Morgan, SE, Watson, AT, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Best, DS, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, and Shen, BC
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report on a study of inclusive B- and B̄0 meson decays to D0X, D̄0X, D+X, D-X, Ds+X, Ds-X, Λc+X, Λ̄c-X, based on a sample of 231×106 BB̄ events recorded with the BABAR detector at the Υ(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anticharm particles per B̄ decay, separately for charged and neutral parents. We derive the total charm yield per B- decay, nc-=1.208±0. 023±0.040-0.029+0.035, and per B̄0 decay, nc0=1.203±0. 030±0.034-0.035+0.044 where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the B̄ rest frame. © 2007 The American Physical Society.
Published: 2007

43. Measurements of Λc+ branching fractions of Cabibbo-suppressed decay modes involving Λ and Σ0

Author: Aubert, B, Barate, R, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Pappagallo, M, Pompili, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Best, D, Breon, AB, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Day, CT, Gill, MS, Gritsan, AV, Groysman, Y, Jacobsen, RG, Kadel, RW, Kadyk, J, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Oddone, PJ, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Morgan, SE, Watson, AT, Fritsch, M, Goetzen, K, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Teodorescu, L, Blinov, AE, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Yushkov, AN, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, and Buchanan, C
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We measure the branching ratios of the Cabibbo-suppressed decays Λc+→ΛK+ and Λc+→Σ0K+ relative to the Cabibbo-favored decay modes Λc+→Λπ+ and Λc+→Σ0π+ to be 0.044±0.004(stat.)±0.003(syst. ) and 0.038±0.005(stat.)±0.003(syst.), respectively. We set an upper limit on the branching ratio at the 90% confidence level for Λc+→ΛK+π+π- of 4.1×10-2 relative to Λc+→Λπ+, and for Λc+→Σ0K+π+π- of 2.0×10-2 relative to Λc+→Σ0π+. We also measure the branching fraction for the Cabibbo-favored mode Λc+→Σ0π+ relative to Λc+→Λπ+ to be 0.977±0.015(stat.) ±0.051(syst.). This analysis was performed using a data sample with an integrated luminosity of 125fb-1 collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. © 2007 The American Physical Society.
Published: 2007

44. Measurement of B decays to ϕKγ

Author: Aubert, B, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Best, DS, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, Zhang, L, and Hadavand, HK
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Astronomical sciences, Particle and high energy physics
Abstract: We search for the decays B-→ K-γ and B̄0→ K̄0γ in a data sample of 228×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector. We measure the branching fraction B(B-→ K-γ)=(3.5±0.6±0.4)×10-6 and set an upper limit B(B̄0→ K̄0γ)
Published: 2007

45. Search for the reactions e+e-→μ+τ- and e+e-→e+τ-

Author: Aubert, B, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Hart, AJ, Harrison, TJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, Zhang, L, Hadavand, HK, and Hill, EJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report on a search for the lepton-flavor-violating processes e+e-→μ+τ- and e+e-→e+τ-. The data sample corresponds to an integrated luminosity of 211fb-1 recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy B Factory at a center-of-mass energy of s=10.58GeV. We find no evidence for a signal and set the 90% confidence level upper limits on the cross sections to be σμτ
Published: 2007

46. Branching fraction measurement of B¯0→D()+π- and B-→D()0π- and isospin analysis of B¯→D(*)π decays

Author: Aubert, B, Barate, R, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Morgan, SE, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Best, DS, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, and Zhang, L
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Using 65×106 Υ(4S)→BB̄ events collected with the BABAR detector at the PEP-II e+e- storage ring at the Stanford Linear Accelerator Center, we measure the color-favored branching fractions B(B̄0→D+π- )=(2.55±0.05±0.16)×10-3, B(B̄0→D*+π-)=(2. 79±0.08±0.17)×10-3, B(B-→D0π-)=(4.90±0. 07±0.22)×10-3 and B(B-→D*0π-)=(5.52±0. 17±0.42)×10-3, where the first error is statistical and the second is systematic. With these results and the current world average for the branching fraction for the color-suppressed decay B̄0→D(*) 0π0, the cosines of the strong phase difference δ between the I=1/2 and I=3/2 isospin amplitudes are determined to be cos δ=0.872-0.007-0.029+0. 008+0.031 for the B̄→Dπ process and cos δ=0.924-0.017-0. 054+0.019+0.063 for the B̄→D*π process. Under the isospin symmetry, the results for cos δ suggest the presence of final-state interactions in the Dπ system. © 2007 The American Physical Society.
Published: 2007

47. Improved measurements of the branching fractions for B0→π+π- and B0→K+π-, and a search for B0→K+K-

Author: Aubert, B, Barate, R, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Morgan, SE, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Best, DS, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, and Zhang, L
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present measurements of the branching fractions for the charmless two-body decays B0→π+π- and B0→K+π-, and a search for the decay B0→K+K-. We include the effects of final-state radiation from the daughter mesons for the first time, and quote branching fractions for the inclusive processes B0→h+h′-nγ, where h and h′ are pions or kaons. The maximum value of the sum of the energies of the n undetected photons, Eγmax, is mode-dependent. Using a data sample of approximately 227×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we measure: B(B0→π+π-nγ;Eγmax =150MeV)=(5.1±0.4±0.2) ×10-6, B(B0→K+π-nγ;Eγmax =105MeV)=(18.1±0. 6±0.6)×10-6, B(B0→K+K-nγ;Eγmax =59MeV)
Published: 2007

48. Inclusive Λc+ production in e+e- annihilations at s=10.54 GeV and in Υ(4S) decays

Author: Aubert, B, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, Zhang, L, Hadavand, HK, and Hill, EJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present measurements of the total production rates and momentum distributions of the charmed baryon Λc+ in e+e-→hadrons at a center-of-mass energy of 10.54 GeV and in Υ(4S) decays. In hadronic events at 10.54 GeV, charmed hadrons are almost exclusively leading particles in e+e-→cc̄ events, allowing direct studies of c-quark fragmentation. We measure a momentum distribution for Λc+ baryons that differs significantly from those measured previously for charmed mesons. Comparing with a number of models, we find none that can describe the distribution completely. We measure an average scaled momentum of xp=0.574±0.009 and a total rate of NΛcqq̄=0.057±0.002(exp.)±0.015(BF)Λc+ per hadronic event, where the experimental error is much smaller than that due to the branching fraction into the reconstructed decay mode, pK-π+. In Υ(4S) decays we measure a total rate of NΛcΥ=0.091±0. 006(exp.)±0.024(BF) per Υ(4S) decay, and find a much softer momentum distribution than expected from B decays into a Λc+ plus an antinucleon and one to three pions. © 2007 The American Physical Society.
Published: 2007

49. Observation of the exclusive reaction e+e-→ϕη at s=10.58 GeV

Author: Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, JP, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Pegna, D Lopes, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Tackmann, K, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Harrison, TJ, Hart, AJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Martin, EC, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Zhang, L, Hill, EJ, Paar, HP, Rahatlou, S, and Sharma, V
Subjects: Vaccine Related, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We report the observation of e+e-→η near s=10.58GeV with 6.5σ significance in the K+K-γγ final state in a data sample of 224fb-1 collected by the BABAR experiment at the PEP-II e+e- storage rings. We measure the restricted radiation-corrected cross section to be σ(e+e-→η)=2.1±0.4(stat)±0.1(syst)fb within the range |cosθ*|
Published: 2006

50. Measurement of the absolute branching fractions B→Dπ, D*π, D**π with a missing mass method

Author: Aubert, B, Bona, M, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, JP, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Chen, JC, Qi, ND, Rong, G, Wang, P, Zhu, YS, Eigen, G, Ofte, I, Stugu, B, Abrams, GS, Battaglia, M, Brown, DN, Button-Shafer, J, Cahn, RN, Charles, E, Gill, MS, Groysman, Y, Jacobsen, RG, Kadyk, JA, Kerth, LT, Kolomensky, Yu G, Kukartsev, G, Lynch, G, Mir, LM, Orimoto, TJ, Pripstein, M, Roe, NA, Ronan, MT, Wenzel, WA, del Amo Sanchez, P, Barrett, M, Ford, KE, Harrison, TJ, Hart, AJ, Hawkes, CM, Watson, AT, Held, T, Koch, H, Lewandowski, B, Pelizaeus, M, Peters, K, Schroeder, T, Steinke, M, Boyd, JT, Burke, JP, Cottingham, WN, Walker, D, Asgeirsson, DJ, Cuhadar-Donszelmann, T, Fulsom, BG, Hearty, C, Knecht, NS, Mattison, TS, McKenna, JA, Khan, A, Kyberd, P, Saleem, M, Sherwood, DJ, Teodorescu, L, Blinov, VE, Bukin, AD, Druzhinin, VP, Golubev, VB, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Bondioli, M, Bruinsma, M, Chao, M, Curry, S, Eschrich, I, Kirkby, D, Lankford, AJ, Lund, P, Mandelkern, M, Mommsen, RK, Roethel, W, Stoker, DP, Abachi, S, Buchanan, C, Foulkes, SD, Gary, JW, Long, O, Shen, BC, Wang, K, Zhang, L, Hadavand, HK, and Hill, EJ
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: We present branching fraction measurements of charged and neutral B decays to Dπ-, D*π-, and "D**"π- with a missing mass method, based on a sample of 231×106 Υ(4S)→BB̄ pairs collected by the BABAR detector at the PEP-II e+e- collider. One of the B mesons is fully reconstructed and the other one decays to a reconstructed charged π and a companion charmed meson identified by its recoil mass, inferred by kinematics. Here "D**" refers to the sum of all the nonstrange charm meson states with masses in the range 2.2-2.8GeV/c2. We measure the branching fractions: B(B-→D0π-)=(4.49±0.21±0.23) ×10-3, B(B-→D*0π-)=(5.13±0.22±0.28)×10- 3, B(B-→"D**0"π-)=(5.50±0.52±1.04) ×10-3, B(B̄0→D+π-)=(3.03±0.23±0.23)×10-3, B(B̄0→D*+π-)=(2.99±0.23±0.24)×10-3, B(B̄0→"D**+"π-)=(2.34±0.65±0. 88)×10-3, and their ratios. © 2006 The American Physical Society.
Published: 2006

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