Plasma-Wakefield Accelerator Group

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The BABAR detector

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 479:1 (2002) PII S0168-9002(01)02012-5

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, AT Watson, NK Watson, T Deppermann, 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, A Mass, JD McFall, D Wallom, FF Wilson, K Abe, C Hearty, JA McKenna, D Thiessen, B Camanzi, TJ Harrison, AK McKemey, J Tinslay, EI Antohin, VE Blinov, AD Bukin, DA Bukin, AR Buzykaev, MS Dubrovin, VB Golubev, VN Ivanchenko, GM Kolachev, AA Korol, EA Kravchenko, SF Mikhailov, AP Onuchin, AA Salnikov, SI Serednyakov, YI Skovpen, VI Telnov, AN Yushkov, J Booth, AJ Lankford, M Mandelkern, S Pier, DP Stoker, G Zioulas, A Ahsan, K Arisaka, C Buchanan, S Chun, R Faccini, DB MacFarlane, SA Prell, S Rahatlou, G Raven, V Sharma, S Burke, D Callahan, C Campagnari, B Dahmes, D Hale, PA Hart, N Kuznetsova, S Kyre, SL Levy, O Long, A Lu, J May, JD Richman, W Verkerke, M Witherell, S Yellin, J Beringer, J DeWitt, DE Dorfan, AM Eisner, A Frey, AA Grillo, M Grothe, CA Heusch, RP Johnson, W Kroeger, WS Lockman, T Pulliam, W Rowe, H Sadrozinski, T Schalk, RE Schmitz, BA Schumm, A Seiden, EN Spencer, M Turri, W Walkowiak, M Wilder, DC Williams, E Chen, GP Dubois-Felsmann, A Dvoretskii, JE Hanson, DG Hitlin, YG Kolomensky, S Metzler, J Oyang, FC Porter, A Ryd, A Samuel, M Weaver, S Yang, RY Zhu, S Devmal, TL Geld, S Jayatilleke, SM Jayatilleke, G Mancinelli, BT Meadows, MD Sokoloff, P Bloom, B Broomer, E Erdos, S Fahey, WT Ford, F Gaede, WC van Hoek, DR Johnson, AK Michael, U Nauenberg, A Olivas, H Park, P Rankin, J Roy, S Sen, JG Smith, DL Wagner, J Blouw, JL Harton, M Krishnamurthy, A Soffer, WH Toki, DW Warner, RJ Wilson, J Zhang, T Brandt, J Brose, G Dahlinger, M Dickopp, RS Dubitzky, P Eckstein, H Futterschneider, ML Kocian, R Krause, R Müller-Pfefferkorn, KR Schubert, R Schwierz, B Spaan, L Wilden, L Behr, D Bernard, GR Bonneaud, F Brochard, J Cohen-Tanugi, S Ferrag, G Fouque, F Gastaldi, P Matricon, PM de Freitas, C Renard, E Roussot, S T'Jampens, C Thiebaux, G Vasileiadis, M Verderi, A Anjomshoaa, R Bernet, F Di Lodovico, F Muheim, S Playfer, JE Swain, M Falbo, C Bozzi, S Dittongo, M Folegani, L Piemontese, AC Ramusino, E Treadwell, F Anulli, R Baldini-Ferroli, A Calcaterra, R de Sangro, D Falciai, G Finocchiaro, P Patteri, IM Peruzzi, M Piccolo, Y Xie, A Zallo, S Bagnasco, A Buzzo, R Contri, G Crosetti, P Fabbricatore, S Farinon, M Lo Vetere, M Macri, S Minutoli, MR Monge, R Musenich, M Pallavicini, R Parodi, S Passaggio, FC Pastore, C Patrignani, MG Pia, C Priano, E Robutti, A Santroni, R Bartoldus, T Dignan, R Hamilton, U Mallik, J Cochran, HB Crawley, PA Fischer, J Lamsa, R McKay, WT Meyer, EI Rosenberg, JN Albert, C Beigbeder, M Benkebil, D Breton, R Cizeron, S Du, G Grosdidier, C Hast, A Höcker, HM Lacker, V LePeltier, AM Lutz, S Plaszczynski, MH Schune, S Trincaz-Duvoid, K Truong, A Valassi, G Wormser, O Alford, D Behne, RM Bionta, J Bowman, V Brigljevic, A Brooks, VA Dacosta, O Fackler, D Fujino, M Harper, DJ Lange, M Mugge, TG O'Connor, H Olson, L Ott, E Parker, B Pedrotti, M Roeben, X Shi, K van Bibber, TJ Wenaus, DM Wright, CR Wuest, B Yamamoto, M Carroll, P Cooke, JR Fry, E Gabathuler, R Gamet, M George, M Kay, S McMahon, A Muir, DJ Payne, RJ Sloane, P Sutcliffe, C Touramanis, ML Aspinwall, DA Bowerman, PD Dauncey, I Eschrich, NJW Gunawardane, R Martin, JA Nash, DR Price, P Sanders, D Smith, DE Azzopardi, JJ Back, P Dixon, PF Harrison, D Newman-Coburn, RJL Potter, HW Shorthouse, MI Williams, PB Vidal, G Cowan, S George, MG Green, A Kurup, CE Marker, P McGrath, TR McMahon, F Salvatore, I Scott, G Vaitsas, D Brown, CL Davis, Y Li, J Pavlovich, J Allison, RJ Barlow, JT Boyd, J Fullwood, F Jackson, A Khan, GD Lafferty, N Savvas, ET Simopoulos, RJ Thompson, JH Weatherall, R Bard, C Dallapiccola, A Farbin, A Jawahery, V Lillard, J Olsen, DA Roberts, JR Schieck, G Blaylock, KT Flood, SS Hertzbach, R Kofler, CS Lin, S Willocq, J Wittlin, B Brau, R Cowan, F Taylor, RK Yamamoto, DI Britton, R Fernholz, M Houde, M Milek, PM Patel, J Trischuk, F Lanni, F Palombo, JM Bauer, M Booke, L Cremaldi, R Kroeger, M Reep, J Reidy, DA Sanders, DJ Summers, JF Arguin, M Beaulieu, JP Martin, JY Nief, R Seitz, P Taras, A Woch, V Zacek, H Nicholson, CS Sutton, C Cartaro, N Cavallo, G De Nardo, F Fabozzi, C Gatto, L Lista, D Piccolo, C Sciacca, NM Cason, JM LoSecco, JRG Alsmiller, TA Gabriel, T Handler, J Heck, M Iwasaki, NB Sinev, R Caracciolo, F Colecchia, F Dal Corso, F Galeazzi, M Marzolla, G Michelon, M Morandin, M Posocco, M Rotondo, S Santi, F Simonetto, R Stroili, E Torassa, C Voci, P Bailly, M Benayoun, H Briand, J Chauveau, P David, C De la Vaissière, L Del Buono, JF Genat, O Hamon, P Leruste, F Le Diberder, H Lebbolo, J Lory, L Martin, F Martinez-Vidal, L Roos, J Stark, S Versillé, B Zhang, PF Manfredi, L Ratti, V Re, V Speziali, ED Frank, L Gladney, QH Guo, JH Panetta, C Angelini, G Batignani, S Bettarini, M Bondioli, F Bosi, M Carpinelli, F Forti, A Gaddi, D Gagliardi, MA Giorgi, A Lusiani, P Mammini, M Morganti, F Morsani, N Neri, A Profeti, E Paoloni, F Raffaelli, M Rama, G Rizzo, F Sandrelli, G Simi, G Triggiani, M Haire, D Judd, K Paick, L Turnbull, DE Wagoner, J Albert, C Bula, MH Kelsey, C Lu, KT McDonald, V Miftakov, B Sands, SF Schaffner, AJS Smith, A Tumanov, EW Varnes, F Bronzini, A Buccheri, C Bulfon, G Cavoto, D del Re, F Ferrarotto, F Ferroni, K Fratini, E Lamanna, E Leonardi, MA Mazzoni, S Morganti, G Piredda, FS Tehrani, M Serra, C Voena, R Waldi, PF Jacques, M Kalelkar, RJ Plano, T Adye, B Claxton, J Dowdell, U Egede, B Franek, S Galagedera, NI Geddes, GP Gopal, J Kay, J Lidbury, S Madani, S Metcalfe, S Metcalfe, G Markey, P Olley, M Watt, SM Xella, R Aleksan, P Besson, P Bourgeois, P Convert, G De Domenico, A de Lesquen, S Emery, A Gaidot, SF Ganzhur, Z Georgette, L Gosset, P Graffin, GH de Monchenault, S Hervé, M Karolak, W Kozanecki, M Langer, GW London, V Marques, B Mayer, P Micout, JP Mols, JP Mouly, Y Penichot, J Rolquin, B Serfass, JC Toussaint, M Usseglio, G Vasseur, C Yeche, M Zito, N Copty, MV Purohit, FX Yumiceva, I Adam, A Adesanya, PL Anthony, D Aston, J Bartelt, J Becla, R Bell, E Bloom, CT Boeheim, AM Boyarski, RF Boyce, D Briggs, F Bulos, W Burgess, B Byers, G Calderini, R Chestnut, R Claus, MR Convery, R Coombes, L Cottrell, DP Coupal, DH Coward, WW Craddock, S DeBarger, H DeStaebler, J Dorfan, M Doser, W Dunwoodie, JE Dusatko, S Ecklund, TH Fieguth, DR Freytag, T Glanzman, GL Godfrey, G Haller, A Hanushevsky, J Harris, A Hasan, C Hee, T Himel, ME Huffer, T Hung, WR Innes, CP Jessop, H Kawahara, L Keller, ME King, L Klaisner, HJ Krebs, U Langenegger, W Langeveld, DWGS Leith, SK Louie, S Luitz, V Luth, HL Lynch, J McDonald, G Manzin, H Marsiske, T Mattison, M McCulloch, M McDougald, D McShurley, S Menke, R Messner, S Metcalfe, M Morii, R Mount, DR Muller, D Nelson, M Nordby, CP O'Grady, L Olavson, J Olsen, FG O'Neill, G Oxoby, P Paolucci, T Pavel, J Perl, M Pertsova, S Petrak, G Putallaz, PE Raines, BN Ratcliff, R Reif, SH Robertson, LS Rochester, A Roodman, JJ Russel, L Sapozhnikov, OH Saxton, T Schietinger, RH Schindler, J Schwiening, G Sciolla, JT Seeman, VV Serbo, S Shapiro, K Sr Skarpass, A Snyder, E Soderstrom, A Soha, SM Spanier, A Stahl, P Stiles, D Su, MK Sullivan, M Talby, HA Tanaka, J Va'vra, SR Wagner, R Wang, T Weber, AJR Weinstein, JL White, U Wienands, WJ Wisniewski, CC Young, N Yu, PR Burchat, CH Cheng, D Kirkby, TI Meyer, C Roat, R Henderson, N Khan, S Berridge, W Bugg, H Cohn, E Hart, AW Weidemann, T Benninger, JM Izen, I Kitayama, XC Lou, M Turcotte, F Bianchi, M Bona, F Daudo, B Di Girolamo, D Gamba, P Grosso, A Smol, PP Trapani, D Zanin, L Bosisio, G Della Ricca, L Lanceri, A Pompili, P Poropat, M Prest, I Rashevskaia, E Vallazza, G Vuagnin, RS Panvini, C Brown, A De Silva, R Kowalewski, D Pitman, JM Roney, HR Band, E Charles, S Dasu, P Elmer, JR Johnson, J Nielsen, W Orejudos, Y Pan, R Prepost, IJ Scott, J Walsh, SL Wu, Z Yu, H Zobernig, TB Moore, H Neal
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Measurement of the B → J/ψK*(892) decay amplitudes

Physical Review Letters 87:24 (2001) 2418011-2418017

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, AB 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:

A measurement of the decay amplitudes in B→ J/ψK* channels was presented using 20.7 fb-1 of data collected at the γ(4S) resonance. The effect of S-wave in the K* region was estimated by including a scalar term in the total amplitude. Monte Carlo simulation was also used to estimate uncertainities due to the assumed form for the mES angular distributions of the background.

Search for the decay B0 → γγ

Physical Review Letters 87:24 (2001) 2418031-2418037

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, AB 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, 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, YI Skovpen

Abstract:

A limit on the branching fraction for the decay Bo→γγ was presented using data collected at the γ(4S) resonance at the PEP-II asymmetric energy collider. The energy resolution was measured with a radioactive source at low energy and with electrons from Bhabha scattering at high energy. The energy deposits were reconstructed by grouping adjacent crystals with energy deposits greater than 1 MeV into clusters.
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Measurements of the branching fractions of exclusive charmless B meson decays with η′ or ω mesons

Physical Review Letters 87:22 (2001)

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, AB 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, 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, YI Skovpen

Abstract:

An overview is given on the results of searches for B decays to the charmless two-body final states B+→wπ+, B+→wK+, B+→η'π+, B+→η'K+, B0→wK0, B0→wπ0, and B0→η,'K0. The results are based on data taken in the 1999-2000 run. The data were collected with the BABAR detector at the PEP-II asymmetric e+e- collider located at the Stanford Linear Accelerator Center.

Measurement of the B0 and B+ meson lifetimes with fully reconstructed hadronic final states

Physical Review Letters 87:20 (2001)

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, AB 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, 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, YI Skovpen

Abstract:

An overview is given on lifetime measurements based on a sample of approximately 23 million BB̄ pairs recorded near the Y(4S) resonance with the BABAR detector. The determined B0 and B+ meson lifetimes and their ratio are highlighted.