Malcolm John: Publications

Measurement of the branching fraction and polarization for the decay B ^- → D⁰K^-

Physical Review Letters 92:14 (2004)

Authors:

B Aubert, R Barate, D Boutigny, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, P Robbe, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, JF Kral, G Kukartsev, C LeClerc, ME Levi, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, A Romosan, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, K Ford, TJ Harrison, CM Hawkes, DJ Knowles, SE Morgan, RC Penny, AT Watson, NK Watson, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, H Schmuecker, M Steinke, NR Barlow, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, C Mackay, FF Wilson, K Abe, T Cuhadar-Donszelmann, C Hearty, TS Mattison, JA McKenna, D Thiessen, P Kyberd, AK McKemey, VE Blinov, AD Bukin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen

Abstract:

A study of the decay B- → D*0K*- based on a sample of 86 × 10 6 υ(4S) → BB̄ decays was presented. The measurement was found to be 2.5 times more precise than previous results. The measurement was based on heavy quark effective theory. The longitudinal polarization fraction of this decay was also measured.

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Measurements of the mass and width of the ηc meson and of an ηc(2S) candidate

Physical Review Letters 92:14 (2004) 1-142002

Authors:

B Aubert, R Barate, D Boutigny, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, P Robbe, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, JF Kral, G Kukartsev, C LeClerc, ME Levi, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, A Romosan, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, K Ford, TJ Harrison, CM Hawkes, DJ Knowles, SE Morgan, RC Penny, AT Watson, NK Watson, T Deppermann, K Goetzen, H Koch, B Lewandowski, M Pelizaeus, K Peters, H Schmuecker, M Steinke, NR Barlow, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, C Mackay, FF Wilson, K Abe, T Cuhadar-Donszelmann, C Hearty, TS Mattison, JA McKenna, D Thiessen, P Kyberd, AK McKemey, VE Blinov, AD Bukin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen

Abstract:

The physical characteristics such as mass and total width of ηc meson were analyzed in two-photon interactions. The hyperfine separations were found to be directly related to spin-spin interactions. The momenta of charged particles were measured and their trajectories reconstructed with two detector systems which were located in 1.5 T solenoidal magnetic field. The charged particle identification was provided by detector of internally reflected Cherenkov light. The mass resolution was determined by fitting the distribution of difference between reconstructed mass and generated mass to Gaussian function.

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Search for Lepton-flavor violation in the decay τ^- → ℓ^-ℓ⁺ℓ^-

Physical Review Letters 92:12 (2004)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, A Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, C LeClerc, ME Levi, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, K Ford, TJ Harrison, CM Hawkes, SE Morgan, AT Watson, NK Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, K Abe, T Cuhadar-Donszelmann, C Hearty, TS Mattison, JA McKenna, D Thiessen, P Kyberd, L Teodorescu, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, JW Gary

Abstract:

A search for the lepton-flavor-violating (LFV) decay of the tau into three leptons was performed by using 91.5 fb-1 of data collected at an e+ e- center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC storage ring PEP-II. It was shown that the most stringent limit on FLV was B(τ → μγ) < 3.1 × 10 -7 at 90% C.L., in tau decays. The efficiency of the selection for signal events was estimated with a Monte Carlo (MC) simulation of LFV ray decays. The simulated tau-pairs events including higher-order radiative corrections were generated using KK2F with one tau decaying to three leptons with a three-body phase space distribution.

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

Physical Review Letters 92:7 (2004) 718021-718027

Authors:

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

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Observation of B⁰ → ωK⁰, B⁺ → ηπ⁺, and B⁺ → ηK⁺ and Study of Related Decays

Physical Review Letters 92:6 (2004) 618011-618017

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, C LeClerc, ME Levi, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, K Ford, TJ Harrison, CM Hawkes, SE Morgan, AT Watson, NK Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, H Schmuecker, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, C Mackay, FF Wilson, K Abe, T Cuhadar-Donszelmann, C Hearty, TS Mattison, JA McKenna, D Thiessen, P Kyberd, AK McKemey, L Teodorescu, VE Blinov, AD Bukin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker

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Malcolm John

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Measurement of the branching fraction and polarization for the decay B ^- → D⁰K^-

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Measurements of the mass and width of the ηc meson and of an ηc(2S) candidate

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Abstract:

Search for Lepton-flavor violation in the decay τ^- → ℓ^-ℓ⁺ℓ^-

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Abstract:

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

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Observation of B⁰ → ωK⁰, B⁺ → ηπ⁺, and B⁺ → ηK⁺ and Study of Related Decays

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Measurement of the branching fraction and polarization for the decay B - → D*0K*-

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Measurements of the mass and width of the ηc meson and of an ηc(2S) candidate

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Search for Lepton-flavor violation in the decay τ- → ℓ-ℓ+ℓ-

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

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Observation of B0 → ωK0, B+ → ηπ+, and B+ → ηK+ and Study of Related Decays

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Measurement of the branching fraction and polarization for the decay B ^- → D⁰K^-

Search for Lepton-flavor violation in the decay τ^- → ℓ^-ℓ⁺ℓ^-

Observation of B⁰ → ωK⁰, B⁺ → ηπ⁺, and B⁺ → ηK⁺ and Study of Related Decays