Professor Brian Foster OBE, FRS: Publications

The BABAR detector

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 479:1 (2002) 1-116

Authors:

B Aubert, A Bazan, A Boucham, D Boutigny, I De Bonis, J Favier, JM Gaillard, A Jeremie, Y Karyotakis, T Le Flour, JP Lees, S Lieunard, P Petitpas, P Robbe, V Tisserand, K Zachariadou, A Palano, GP Chen, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, PL Reinertsen, B Stugu, B Abbott, GS Abrams, L Amerman, AW Borgland, AB Breon, DN Brown, J Button-Shafer, AR Clark, S Dardin, C Day, SF Dow, Q Fan, I Gaponenko, MS Gill, FR Goozen, SJ Gowdy, A Gritsan, Y Groysman, C Hernikl, RG Jacobsen, RC Jared, RW Kadel, J Kadyk, A Karcher, LT Kerth, I Kipnis, S Kluth, JF Kral, R Lafever, C LeClerc, ME Levi, SA Lewis, C Lionberger, T Liu, M Long, L Luo, G Lynch, P Luft, E Mandelli, M Marino, K Marks, C Matuk, AB Meyer, R Minor, A Mokhtarani, M Momayezi, M Nyman, PJ Oddone, J Ohnemus, D Oshatz, S Patton, M Pedrali-Noy, A Perazzo, C Peters, W Pope, M Pripstein, DR Quarrie, JE Rasson, NA Roe, A Romosan, MT Ronan, VG Shelkov, R Stone, PD Strother, AV Telnov, H von der Lippe, TF Weber, WA Wenzel, G Zizka, PG Bright-Thomas, CM Hawkes, A Kirk, DJ Knowles, SW O'Neale

Abstract:

BABAR, the detector for the SLAC PEP-II asymmetric e+e- B Factory operating at the γ(4S) resonance, was designed to allow comprehensive studies of CP-violation in B-meson decays. Charged particle tracks are measured in a multi-layer silicon vertex tracker surrounded by a cylindrical wire drift chamber. Electromagnetic showers from electrons and photons are detected in an array of CsI crystals located just inside the solenoidal coil of a superconducting magnet. Muons and neutral hadrons are identified by arrays of resistive plate chambers inserted into gaps in the steel flux return of the magnet. Charged hadrons are identified by dE/dx measurements in the tracking detectors and by a ring-imaging Cherenkov detector surrounding the drift chamber. The trigger, data acquisition and data-monitoring systems, VME- and network-based, are controlled by custom-designed online software. Details of the layout and performance of the detector components and their associated electronics and software are presented. © 2002 Elsevier Science B.V. All rights reserved.

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Measurement of branching fractions for exclusive B decays to charmonium final states

Physical Review D - Particles, Fields, Gravitation and Cosmology 65:3 (2002) 320011-3200123

Authors:

B Aubert, D Boutigny, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, P Robbe, V Tisserand, A Palano, GP Chen, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, PL Reinertsen, B Stugu, B Abbott, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, AR Clark, MS Gill, A Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, S Kluth, YG Kolomensky, JF Kral, C LeClerc, ME Levi, T Liu, G Lynch, A Meyer, M Momayezi, PJ Oddone, A Perazzo, M Pripstein, NA Roe, A Romosan, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, PG Bright-Thomas, TJ Harrison, CM Hawkes, A Kirk, DJ Knowles, SW O'Neale, RC Penny, AT Watson, NK Watson, T Deppermann, K Goetzen, H Koch, J Krug, M Kunze, B Lewandowski, K Peters, H Schmuecker, M Steinke, JC Andress, NR Barlow, W Bhimji, N Chevalier, PJ Clark, WN Cottingham, N de Groot, N Dyce, B Foster, JD McFall, D Wallom, FF Wilson, K Abe, C Hearty, TS Mattison, JA McKenna, D Thiessen, S Jolly, AK McKemey, J Tinslay, VE Blinov, AD Bukin, DA Bukin, AR Buzykaev, VB Golubev, VN Ivanchenko, AA Korol, EA Kravchenko, AP Onuchin, AA Salnikov, SI Serednyakov

Abstract:

We report branching fraction measurements for exclusive decays of charged and neutral B mesons into two-body final states containing a charmonium meson. We use a sample of 22.72±0.36 million BB̄ events collected between October 1999 and October 2000 with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. The charmonium mesons considered here are J/ψ, ψ(2S), and Xcl, and the light meson in the decay is either a K, K*, or π0.

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Direct CP violation searches in charmless hadronic B meson decays

Physical Review D 65:5 (2002)

Authors:

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

Abstract:

We search for direct CP violation in charmless hadronic B decays observed in a sample of about 22.7 million B B̄ pairs collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- collider. We measure the following charge asymmetries: ACp(B ±→η′K±=-0.11±0. 11±0.02, ACP(B±→ωπ ±) = -0.01 -0.31+0.29±0.03, ACPB±→φK±)= -0.05±0.20±0.03, ACP(B± → φK*±)= -0.430.30+0.36±0.06, and ACP(B0→φ K*0)=0.00±0.27±0.03. © 2002 The American Physical Society.

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Measurement of the branching fractions for Ψ(2S)→e ⁺e^- and Ψ(2S)→μ^+-

Physical Review D 65:3 (2002)

Authors:

B Aubert, D Boutigny, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, P Robbe, V Tisserand, A Palano, A Pompili, GP Chen, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, PL Reinertsen, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, AR Clark, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, JF Kral, C LeClerc, ME Levi, T Liu, G Lynch, PJ Oddone, A Perazzo, M Pripstein, NA Roe, A Romosan, MT Ronan, VG Shelkov, AV Telnov, WA Wenzel, PG Bright-Thomas, TJ Harrison, CM Hawkes, DJ Knowles, SW O'Neale, RC Penny, AT Watson, NK Watson, T Deppermann, K Goetzen, H Koch, M Kunze, B Lewandowski, K Peters, H Schmuecker, M Steinke, JC Andress, NR Barlow, W Bhimji, N Chevalier, PJ Clark, WN Cottingham, N de Groot, N Dyce, B Foster, JD McFall, D Wallom, FF Wilson, K Abe, C Hearty, TS Mattison, JA McKenna, D Thiessen, S Jolly, AK McKemey, J Tinslay, VE Blinov, AD Bukin, DA Bukin, AR Buzykaev, VB Golubev, VN Ivanchenko, AA Korol, EA Kravchenko, AP Onuchin, AA Salnikov, SI Serednyakov, YI Skovpen, VI Telnov, AN Yushkov, D Best, AJ Lankford

Abstract:

We measure the branching fractions of the Ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for Ψ(2S)→J/Ψπ_. The method uses Ψ(2S) mesons produced in the decay of B mesons at the Y(45) resonance in a data sample collected with the BABAR detector at the Stanford Linear Accelerator Center. Using previous measurements for the Ψ(2S) →J/Ψπ+π- branching fraction, we determine the e+e- and π+π- branching fractions to be 0.0078±0.0009±0.0008 and 0.0067±0. 0008±0.0007, respectively. © 2001 The American Physical Society.

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Properties of hadronic final states in diffractive deep inelastic ep scattering at DESY HERA

Physical Review D 65:5 (2002)

Authors:

S Chekanov, M Derrick, D Krakauer, S Magill, B Musgrave, A Pellegrino, J Repond, R Yoshida, MCK Mattingly, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, GC Romeo, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, P Giusti, G Iacobucci, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, G Sartorelli, A Zichichi, G Aghuzumtsyan, I Brock, S Goers, H Hartmann, E Hilger, P Irrgang, HP Jakob, A Kappes, UF Katz, R Kerger, O Kind, E Paul, J Rautenberg, H Schnurbusch, A Stifutkin, J Tandler, KC Voss, A Weber, H Wieber, DS Bailey, NH Brook, JE Cole, B Foster, GP Heath, HF Heath, S Robins, E Rodrigues, J Scott, RJ Tapper, M Wing, M Capua, A Mastroberardino, M Schioppa, G Susinno, HY Jeoung, JY Kim, JH Lee, IT Lim, KJ Ma, MY Pac, A Caldwell, M Helbich, W Liu, X Liu, B Mellado, S Paganis, S Sampson, WB Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, K Klimek, K Olkiewicz, MB Przybycień, P Stopa, L Zawiejski, B Bednarek, I Grabowska-Bold, K Jeleń, D Kisielewska, AM Kowal, M Kowal, T Kowalski, B Mindur, M Przybycień, E Rulikowska-Zarȩbska

Abstract:

Characteristics of the hadronic final state of diffractive deep inelastic scattering events ep→eXp were studied in the kinematic range 4

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Professor Brian Foster OBE, FRS

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The BABAR detector

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Measurement of branching fractions for exclusive B decays to charmonium final states

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Direct CP violation searches in charmless hadronic B meson decays

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Measurement of the branching fractions for Ψ(2S)→e ⁺e^- and Ψ(2S)→μ^+-

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Properties of hadronic final states in diffractive deep inelastic ep scattering at DESY HERA

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Professor Brian Foster OBE, FRS

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The BABAR detector

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Measurement of branching fractions for exclusive B decays to charmonium final states

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Direct CP violation searches in charmless hadronic B meson decays

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Measurement of the branching fractions for Ψ(2S)→e +e- and Ψ(2S)→μ+-

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Properties of hadronic final states in diffractive deep inelastic ep scattering at DESY HERA

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Measurement of the branching fractions for Ψ(2S)→e ⁺e^- and Ψ(2S)→μ^+-