Philip Burrows: Publications

Measurement of the b-quark fragmentation function in Z⁰ decays -: art. no. 092006

PHYSICAL REVIEW D 65:9 (2002) ARTN 092006

Authors:

K Abe, K Abe, T Abe, I Adam, H Akimoto, D Aston, KG Baird, C Baltay, HR Band, TL Barklow, JM Bauer, G Bellodi, R Berger, G Blaylock, JR Bogart, GR Bower, JE Brau, M Breidenbach, WM Bugg, D Burke, TH Burnett, PN Burrows, A Calcaterra, R Cassell, A Chou, HO Cohn, JA Coller, MR Convery, V Cook, RF Cowan, G Crawford, CJS Damerell, M Daoudi, N de Groot, R de Sangro, DN Dong, M Doser, R Dubois, I Erofeeva, V Eschenburg, E Etzion, S Fahey, D Falciai, JP Fernandez, K Flood, R Frey, EL Hart, K Hasuko, SS Hertzbach, ME Huffer, X Huynh, M Iwasaki, DJ Jackson, P Jacques, JA Jaros, ZY Jiang, AS Johnson, JR Johnson, R Kajikawa, M Kalelkar, HJ Kang, RR Kofler, RS Kroeger, M Langston, DWG Leith, V Lia, C Lin, G Mancinelli, S Manly, G Mantovani, TW Markiewicz, T Maruyama, AK McKemey, R Messner, KC Moffeit, TB Moore, M Morii, D Muller, V Murzin, S Narita, U Nauenberg, H Neal, G Nesom, N Oishi, D Onoprienko, LS Osborne, RS Panvini, CH Park, I Peruzzi, M Piccolo, L Piemontese, RJ Plano, R Prepost, CY Prescott, BN Ratcliff, J Reidy, PL Reinertsen, LS Rochester, PC Rowson, JJ Russell, OH Saxton, T Schalk, BA Schumm, J Schwiening, VV Serbo, G Shapiro, NB Sinev, JA Snyder, H Staengle, A Stahl, P Stamer, H Steiner, D Su, F Suekane, A Sugiyama, A Suzuki, M Swartz, FE Taylor, J Thom, E Torrence, T Usher, J Va'vra, R Verdier, DL Wagner, AP Waite, S Walston, AW Weidemann, ER Weiss, JS Whitaker, SH Williams, S Willocq, RJ Wilson, WJ Wisniewski, JL Wittlin, M Woods, TR Wright, RK Yamamoto, J Yashima, SJ Yellin, CC Young, H Yuta

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Improved measurement of the probability for gluon splitting into bb̄ in Z⁰ decays

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 507:1-4 (2001) 61-69

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Abstract:

We have measured gluon splitting into bottom quarks, g → bb̄, in hadronic Z0 decays collected by SLD between 1996 and 1998. The analysis was performed by looking for secondary bottom production in 4-jet events of any primary flavor. 4-jet events were identified, and in each event a topological vertex-mass technique was applied to the two jets closest in angle in order to identify them as b or b̄ jets. The upgraded CCD-based vertex detector gives very high B-tagging efficiency, especially for B hadrons with the low energies typical of this process. We measured the rate of g → bb̄ production per hadronic event, gbb̄, to be (2.44 ± 0.59(stat.) ± 0.34(syst.)) × 10-3. © 2001 Elsevier Science B.V.

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Improved direct measurement of leptonic coupling asymmetries with polarized Z bosons

Physical Review Letters 86:7 (2001) 1162-1166

Authors:

K Abe, T Abe, I Adam, H Akimoto, D Aston, KG Baird, C Baltay, HR Band, TL Barklow, JM Bauer, G Bellodi, R Berger, G Blaylock, JR Bogart, GR Bower, JE Brau, M Breidenbach, WM Bugg, D Burke, TH Burnett, PN Burrows, A Calcaterra, R Cassell, A Chou, HO Cohn, JA Coller, MR Convery, V Cook, RF Cowan, G Crawford, CJS Damerell, M Daoudi, N de Groot, R de Sangro, DN Dong, M Doser, R Dubois, I Erofeeva, V Eschenburg, E Etzion, S Fahey, D Falciai, JP Fernandez, K Flood, R Frey, EL Hart, K Hasuko, SS Hertzbach, ME Huffer, X Huynh, M Iwasaki, DJ Jackson, P Jacques, JA Jaros, ZY Jiang, AS Johnson, JR Johnson, R Kajikawa, M Kalelkar, HJ Kang, RR Kofler, RS Kroeger, M Langston, DWG Leith, V Lia, C Lin, G Mancinelli, S Manly, G Mantovani, TW Markiewicz, T Maruyama, AK McKemey, R Messner, KC Moffeit, TB Moore, M Morii, D Muller, V Murzin, S Narita, U Nauenberg, H Neal, G Nesom, N Oishi, D Onoprienko, LS Osborne, RS Panvini, CH Park, I Peruzzi, M Piccolo, L Piemontese, RJ Plano, R Prepost, CY Prescott, BN Ratcliff, J Reidy, PL Reinertsen, LS Rochester, PC Rowson, JJ Russell, OH Saxton

Abstract:

Direct measurements of the asymmetry parameters Ae, Aμ, and AT using leptonic Z decays were carried out based on the 3.8 X 105Zs collected during 1996-1998 by the SLAC Large Detector (SLD) experiment at the SLC. The results were combined with earlier leptonic asymmetry measurements and the more precise left-right asymmetry measurements using Z decays to hadrons.

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First symmetry tests in polarized Z⁰ decays to bb̄g

Physical Review Letters 86:6 (2001) 962-966

Authors:

K Abe, K Abe, T Abe, I Adam, H Akimoto, D Aston, KG Baird, C Baltay, HR Band, TL Barklow, JM Bauer, G Bellodi, R Berger, G Blaylock, JR Bogart, GR Bower, JE Brau, M Breidenbach, WM Bugg, D Burke, TH Burnett, PN Burrows, A Calcaterra, R Cassell, A Chou, HO Conn, JA Coller, MR Convery, V Cook, RF Cowan, G Crawford, CJS Damerell, M Daoudi, N De Groot, R De Sangro, DN Dong, M Doser, R Dubois, I Erofeeva, V Eschenburg, E Etzion, S Fahey, D Falciai, JP Fernandez, K Flood, R Frey, EL Hart, K Hasuko, SS Hertzbach, ME Huffer, X Huynh, M Iwasaki, DJ Jackson, P Jacques, JA Jaros, ZY Jiang, AS Johnson, JR Johnson, R Kajikawa, M Kalelkar, HJ Kang, RR Kofler, RS Kroeger, M Langston, DWG Leith, V Lia, C Lin, G Mancinelli, S Manly, G Mantovani, TW Markiewicz, T Maruyama, AK McKemey, R Messner, KC Moffeit, TB Moore, M Morii, D Muller, V Murzin, S Narita, U Nauenberg, H Neal, G Nesom, N Oishi, D Onoprienko, LS Osborne, RS Panvini, CH Park, I Peruzzi, M Piccolo, L Piemontese, RJ Plano, R Prepost, CY Prescott, BN Ratcliff, J Reidy, PL Reinertsen, LS Rochester, PC Rowson, JJ Russell

Abstract:

Symmetry tests in polarized Z0 decays to bb̄g were made. From the forward-backward polar-angle asymmetry of the signed-thrust axis and the azimuthal-angle asymmetry, the parity-violation parameters AP and A′P were found to be consistent with O(αs2) quantum chromodynamic (QCD) expectations. A corresponding 95% C.L. limit was set on parity violation at the bb̄g vertex. Using the event-plane normal polar-angle distributions, 95% C.L. limits were set on the T-odd and CP-even and CP-odd asymmetry parameters AT+ and AT-.

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First symmetry tests in polarized Z⁰ decays to b(b)over-bar-g

PHYSICAL REVIEW LETTERS 86:6 (2001) 962-966

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Philip Burrows

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Measurement of the b-quark fragmentation function in Z⁰ decays -: art. no. 092006

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Improved measurement of the probability for gluon splitting into bb̄ in Z⁰ decays

Authors:

Abstract:

Improved direct measurement of leptonic coupling asymmetries with polarized Z bosons

Authors:

Abstract:

First symmetry tests in polarized Z⁰ decays to bb̄g

Authors:

Abstract:

First symmetry tests in polarized Z⁰ decays to b(b)over-bar-g

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Philip Burrows

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Measurement of the b-quark fragmentation function in Z0 decays -: art. no. 092006

Authors:

Improved measurement of the probability for gluon splitting into bb̄ in Z0 decays

Authors:

Abstract:

Improved direct measurement of leptonic coupling asymmetries with polarized Z bosons

Authors:

Abstract:

First symmetry tests in polarized Z0 decays to bb̄g

Authors:

Abstract:

First symmetry tests in polarized Z0 decays to b(b)over-bar-g

Authors:

Measurement of the b-quark fragmentation function in Z⁰ decays -: art. no. 092006

Improved measurement of the probability for gluon splitting into bb̄ in Z⁰ decays

First symmetry tests in polarized Z⁰ decays to bb̄g

First symmetry tests in polarized Z⁰ decays to b(b)over-bar-g