Philip Burrows: Publications

Tests of the FONT3 linear collider intra-train beam feedback system at the ATF

Proceedings of the IEEE Particle Accelerator Conference 2005 (2005) 1359-1361

Authors:

PN Burrows, G Christian, C Clarke, HD Khah, T Hartin, S Molloy, GR White, A Kalinin, C Perry, J Frisch, T Markiewicz, D McCormick, M Ross, S Smith, T Smith

Abstract:

We report preliminary results of beam tests of the FONT3 Linear Collider intra-train position feedback system prototype at the Accelerator Test Facility at KEK. The feedback system incorporates a novel beam position monitor (BPM) processor with a latency below 5 nanoseconds, and a kicker driver amplifier with similar low latency. The 56 nanosecond-long bunchtrain in the ATF extraction line was used to test the prototype BPM processor. The achieved latency will allow a demonstration of intra-train feedback on timescales relevant even for the CLIC Linear Collider design. © 2005 IEEE.

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QCD

Chapter in Linear Collider Physics in the New Millennium, World Scientific Publishing 19 (2005) 383-408

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Measurement of the branching ratios of the Z0 into heavy quarks

Physical Review D Particles Fields Gravitation and Cosmology 71:11 (2005)

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

Abstract:

We measure the hadronic branching ratios of the Z0 boson into heavy quarks: Rb=ΓZ0→bb̄/ΓZ0→hadrons and Rc= ΓZ0→cc̄/ΓZ0→hadrons using a multitag technique. The measurement was performed using about 400000 hadronic Z0 events recorded in the SLC Large Detector experiment at SLAC between 1996 and 1998. The small and stable SLAC Linear Collider beam spot and the CCD-based vertex detector were used to reconstruct bottom and charm hadron decay vertices with high efficiency and purity, which enables us to measure most efficiencies from data. We obtain, Rb=0.21604±0.00098(stat.)±0.00073(syst.)0.00012(Rc) and, Rc=0.1744±0.0031(stat.)±0.0020(syst.)0.0006(Rb). © 2005 The American Physical Society.

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A Test Facility for the International Linear Collider at SLAC End Station A, for Prototypes of Beam Delivery and IR Components

(2005)

Authors:

M Woods, R Erickson, J Frisch, C Hast, RK Jobe, L Keller, T Markiewicz, T Maruyama, D McCormick, J Nelson, T Nelson, N Phinney, T Raubenheimer, M Ross, A Seryi, S Smith, Z Szalata, P Tenenbaum, M Woodley, D Angal-Kalinin, C Beard, C Densham, J Greenhalgh, F Jackson, A Kalinin, F Zimmermann, I Zagorodnov, Y Sugimoto, S Walston, D Burton, J Smith, N Shales, A Sopczak, R Tucker, R Barlow, G Kurevlev, A Mercer, M Hildreth, P Burrows, G Christian, C Clarke, A Hartin, S Molloy, G White, W Mueller, T Weiland, N Watson, D Bailey, D Cussans, Y Kolomensky, M Slater, M Thomson, D Ward, S Boogert, A Liapine, S Malton, DJ Miller, M Wing, R Arnold, N Sinev, E Torrence

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Direct measurements of ab and ac using vertex and kaon charge tags at the SLAC detector

Physical Review Letters 94:9 (2005)

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, S Dasu, 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

Abstract:

Exploiting the manipulation of the SLAC Linear Collider electron-beam polarization, we present precise direct measurements of the parity-violation parameters Ac and Ab in the Z-boson-c-quark and Z-boson-b-quark coupling. Quark-antiquark discrimination is accomplished via a unique algorithm that takes advantage of the precise SLAC Large Detector charge coupled device vertex detector, employing the net charge of displaced vertices as well as the charge of kaons that emanate from those vertices. From the 1996-1998 sample of 400000 Z decays, produced with an average beam polarization of 73.4%, we find Ac = 0.673 ± 0.029(stat) ± 0.023(syst) and Ab = 0.919 ± 0.018(stat) ± 0.017(syst). © 2005 The American Physical Society.

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Philip Burrows

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Tests of the FONT3 linear collider intra-train beam feedback system at the ATF

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QCD

Measurement of the branching ratios of the Z0 into heavy quarks

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A Test Facility for the International Linear Collider at SLAC End Station A, for Prototypes of Beam Delivery and IR Components

Authors:

Direct measurements of ab and ac using vertex and kaon charge tags at the SLAC detector

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