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Measurement of the ratio of B+ and B0 meson lifetimes

Physical Review Letters 94:18 (2005)

Authors:

VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, M Agelou, JL Agram, SH Ahn, M Ahsan, GD Alexeev, G Alkhazov, A Alton, G Alverson, GA Alves, M Anastasoaie, S Anderson, B Andrieu, Y Arnoud, A Askew, B Åsman, O Atramentov, C Autermann, C Avila, F Badaud, A Baden, B Baldin, PW Balm, S Banerjee, E Barberis, P Bargassa, P Baringer, C Barnes, J Barreto, JF Bartlett, U Bassler, D Bauer, A Bean, S Beauceron, M Begel, A Bellavance, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, M Binder, KM Black, I Blackler, G Blazey, F Blekman, S Blessing, D Bloch, U Blumenschein, A Boehnlein, O Boeriu, TA Bolton, F Borcherding, G Borissov, K Bos, T Bose, A Brandt, R Brock, G Brooijmans, A Bross, NJ Buchanan, D Buchholz, M Buehler, V Buescher, S Burdin, TH Burnett, E Busato, JM Butler, J Bystricky, W Carvalho, BCK Casey, NM Cason, H Castilla-Valdez, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, D Chapin, F Charles, E Cheu, L Chevalier, DK Cho, S Choi, T Christiansen, L Christofek, D Claes, B Clément, C Clément, Y Coadou, M Cooke, WE Cooper

Abstract:

The ratio of the B+ and B0 meson lifetimes was measured using data collected in 2002-2004 by the D0 experiment in RunII of the Fermilab Tevatron Collider. These mesons were reconstructed in B→μ+νD*-X decays, which are dominated by B0 and B→μ+νD̄0X decays, which are dominated by B+. The ratio of lifetimes is measured to be τ+/τ0=1. 080±0.016(stat)±0.014(syst). © 2005 The American Physical Society.
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Measurement of the ratio of B+ and B0 meson lifetimes.

Phys Rev Lett 94:18 (2005) 182001

Authors:

VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, M Agelou, J-L Agram, SH Ahn, M Ahsan, GD Alexeev, G Alkhazov, A Alton, G Alverson, GA Alves, M Anastasoaie, S Anderson, B Andrieu, Y Arnoud, A Askew, B Asman, O Atramentov, C Autermann, C Avila, F Badaud, A Baden, B Baldin, PW Balm, S Banerjee, E Barberis, P Bargassa, P Baringer, C Barnes, J Barreto, JF Bartlett, U Bassler, D Bauer, A Bean, S Beauceron, M Begel, A Bellavance, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, M Binder, KM Black, I Blackler, G Blazey, F Blekman, S Blessing, D Bloch, U Blumenschein, A Boehnlein, O Boeriu, TA Bolton, F Borcherding, G Borissov, K Bos, T Bose, A Brandt, R Brock, G Brooijmans, A Bross, NJ Buchanan, D Buchholz, M Buehler, V Buescher, S Burdin, TH Burnett, E Busato, JM Butler, J Bystricky, W Carvalho, BCK Casey, NM Cason, H Castilla-Valdez, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, D Chapin, F Charles, E Cheu, L Chevalier, DK Cho, S Choi, T Christiansen, L Christofek, D Claes, B Clément, C Clément, Y Coadou, M Cooke, WE Cooper, D Coppage, M Corcoran, J Coss, A Cothenet, M-C Cousinou, S Crépé-Renaudin, M Cristetiu, MAC Cummings, D Cutts, H da Motta, B Davies, G Davies, GA Davis, K De, P de Jong, SJ de Jong, E De La Cruz-Burelo, C De Oliveira Martins, S Dean, F Déliot, PA Delsart, M Demarteau, R Demina, P Demine, D Denisov, SP Denisov, S Desai, HT Diehl, M Diesburg, M Doidge, H Dong, S Doulas, L Duflot, SR Dugad, A Duperrin, J Dyer, A Dyshkant, M Eads, D Edmunds, T Edwards, J Ellison, J Elmsheuser, JT Eltzroth, VD Elvira, S Eno, P Ermolov, OV Eroshin, J Estrada, D Evans, H Evans, A Evdokimov, VN Evdokimov, J Fast, SN Fatakia, L Feligioni, T Ferbel, F Fiedler, F Filthaut, W Fisher, HE Fisk, M Fortner, H Fox, W Freeman, S Fu, S Fuess, T Gadfort, CF Galea, E Gallas, E Galyaev, C Garcia, A Garcia-Bellido, J Gardner, V Gavrilov, P Gay, D Gelé, R Gelhaus, K Genser, CE Gerber, Y Gershtein, G Ginther, T Golling, B Gómez, K Gounder, A Goussiou, PD Grannis, S Greder, H Greenlee, ZD Greenwood, EM Gregores, Ph Gris, J-F Grivaz, L Groer, S Grünendahl, MW Grünewald, SN Gurzhiev, G Gutierrez, P Gutierrez, A Haas, NJ Hadley, S Hagopian, I Hall, RE Hall, C Han, L Han, K Hanagaki, K Harder, R Harrington, JM Hauptman, R Hauser, J Hays, T Hebbeker, D Hedin, JM Heinmiller, AP Heinson, U Heintz, C Hensel, G Hesketh, MD Hildreth, R Hirosky, JD Hobbs, B Hoeneisen, M Hohlfeld, SJ Hong, R Hooper, P Houben, Y Hu, J Huang, I Iashvili, R Illingworth, AS Ito, S Jabeen, M Jaffré, S Jain, V Jain, K Jakobs, A Jenkins, R Jesik, K Johns, M Johnson, A Jonckheere, P Jonsson, H Jöstlein, A Juste, MM Kado, D Käfer, W Kahl, S Kahn, E Kajfasz, AM Kalinin, J Kalk, D Karmanov, J Kasper, D Kau, R Kehoe, S Kermiche, S Kesisoglou, A Khanov, A Kharchilava, YM Kharzheev, KH Kim, B Klima, M Klute, JM Kohli, M Kopal, VM Korablev, J Kotcher, B Kothari, A Koubarovsky, AV Kozelov, J Kozminski, S Krzywdzinski, S Kuleshov, Y Kulik, S Kunori, A Kupco, T Kurca, S Lager, N Lahrichi, G Landsberg, J Lazoflores, A-C Le Bihan, P Lebrun, SW Lee, WM Lee, A Leflat, F Lehner, C Leonidopoulos, P Lewis, J Li, QZ Li, JGR Lima, D Lincoln, SL Linn, J Linnemann, VV Lipaev, R Lipton, L Lobo, A Lobodenko, M Lokajicek, A Lounis, HJ Lubatti, L Lueking, M Lynker, AL Lyon, AKA Maciel, RJ Madaras, P Mättig, A Magerkurth, A-M Magnan, N Makovec, PK Mal, S Malik, VL Malyshev, HS Mao, Y Maravin, M Martens, SEK Mattingly, AA Mayorov, R McCarthy, R McCroskey, D Meder, HL Melanson, A Melnitchouk, M Merkin, KW Merritt, A Meyer, H Miettinen, D Mihalcea, J Mitrevski, N Mokhov, J Molina, NK Mondal, HE Montgomery, RW Moore, GS Muanza, M Mulders, YD Mutaf, E Nagy, M Narain, NA Naumann, HA Neal, JP Negret, S Nelson, P Neustroev, C Noeding, A Nomerotski, SF Novaes, T Nunnemann, E Nurse, V O'Dell, DC O'Neil, V Oguri, N Oliveira, N Oshima, GJ Otero y Garzón, P Padley, N Parashar, J Park, SK Park, J Parsons, R Partridge, N Parua, A Patwa, PM Perea, E Perez, O Peters, P Pétroff, M Petteni, L Phaf, R Piegaia, PLM Podesta-Lerma, VM Podstavkov, Y Pogorelov, BG Pope, WL Prado da Silva, HB Prosper, S Protopopescu, MB Przybycien, J Qian, A Quadt, B Quinn, KJ Rani, PA Rapidis, PN Ratoff, NW Reay, S Reucroft, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, C Royon, P Rubinov, R Ruchti, G Sajot, A Sánchez-Hernández, MP Sanders, A Santoro, G Savage, L Sawyer, T Scanlon, RD Schamberger, H Schellman, P Schieferdecker, C Schmitt, AA Schukin, A Schwartzman, R Schwienhorst, S Sengupta, H Severini, E Shabalina, M Shamim, V Shary, WD Shephard, D Shpakov, RA Sidwell, V Simak, V Sirotenko, P Skubic, P Slattery, RP Smith, K Smolek, GR Snow, J Snow, S Snyder, S Söldner-Rembold, X Song, Y Song, L Sonnenschein, A Sopczak, M Sosebee, K Soustruznik, M Souza, B Spurlock, NR Stanton, J Stark, J Steele, G Steinbrück, K Stevenson, V Stolin, A Stone, DA Stoyanova, J Strandberg, MA Strang, M Strauss, R Ströhmer, M Strovink, L Stutte, S Sumowidagdo, A Sznajder, M Talby, P Tamburello, W Taylor, P Telford, J Temple, S Tentindo-Repond, E Thomas, B Thooris, M Tomoto, T Toole, J Torborg, S Towers, T Trefzger, S Trincaz-Duvoid, B Tuchming, C Tully, AS Turcot, PM Tuts, L Uvarov, S Uvarov, S Uzunyan, B Vachon, R Van Kooten, WM van Leeuwen, N Varelas, EW Varnes, IA Vasilyev, M Vaupel, P Verdier, LS Vertogradov, M Verzocchi, F Villeneuve-Seguier, J-R Vlimant, E Von Toerne, M Vreeswijk, T Vu Anh, HD Wahl, R Walker, L Wang, Z-M Wang, J Warchol, M Warsinsky, G Watts, M Wayne, M Weber, H Weerts, M Wegner, N Wermes, A White, V White, D Whiteson, D Wicke, DA Wijngaarden, GW Wilson, SJ Wimpenny, J Wittlin, M Wobisch, J Womersley, DR Wood, TR Wyatt, Q Xu, N Xuan, R Yamada, M Yan, T Yasuda, YA Yatsunenko, Y Yen, K Yip, SW Youn, J Yu, A Yurkewicz, A Zabi, A Zatserklyaniy, M Zdrazil, C Zeitnitz, D Zhang, X Zhang, T Zhao, Z Zhao, B Zhou, J Zhu, M Zielinski, D Zieminska, A Zieminski, R Zitoun, V Zutshi, EG Zverev, A Zylberstejn

Abstract:

The ratio of the B+ and B0 meson lifetimes was measured using data collected in 2002-2004 by the D0 experiment in Run II of the Fermilab Tevatron Collider. These mesons were reconstructed in B-->mu(+)nuD(*-)X decays, which are dominated by B0 and B-->mu(+)nuD 0X decays, which are dominated by B+. The ratio of lifetimes is measured to be tau(+)/tau(0)=1.080+/-0.016(stat)+/-0.014(syst).
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Measurement of charged-particle multiplicities in gluon and quark jets in pp̄ collisions at √s = 1:8 TeV

Physical Review Letters 94:17 (2005)

Authors:

D Acosta, T Affolder, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, G Bolla, A Bolshov, D Bortoletto, J Boudreau, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, M Campbell, W Carithers, D Carlsmith, A Castro, D Cauz, A Cerri, L Cerrito, J Chapman, C Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, ML Chu, JY Chung, WH Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson, D Dagenhart, S D'Auria, P de Barbaro, S de Cecco, S Dell'Agnello, M Dell'Orso, S Demers, L Demortier, M Deninno, D de Pedis, PF Derwent, C Dionisi, JR Dittmann, A Dominguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, R Erbacher, D Errede, S Errede

Abstract:

We report the first largely model independent measurement of charged particle multiplicities in quark and gluon jets, Nq and Ng, produced at the Fermilab Tevatron in pp collisions with a center-of-mass energy of 1.8 TeV and recorded by the Collider Detector at Fermilab. The measurements are made for jets with average energies of 41 and 53 GeV by counting charged particle tracks in cones with opening angles of θc = 0:28, 0.36, and 0.47 rad around the jet axis. The corresponding jet hardness Q = Ejetθc varies in the range from 12 to 25 GeV. At Q = 19:2 GeV, the ratio of multiplicities r = Ng=Nq is found to be 1:64 ± 0:17, where statistical and systematic uncertainties are added in quadrature. The results are in agreement with resummed perturbative QCD calculations.
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Measurement of the B0→D*-Ds*+ and Ds+→ϕπ+ branching fractions

Physical Review D American Physical Society (APS) 71:9 (2005) 091104

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges-Pous, A Palano, M Pappagallo, 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, Yu G Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, N Chevalier, WN Cottingham, MP Kelly, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, Yu I Skovpen, EP Solodov, AN Yushkov, D Best, M Bondioli, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, AJR Weinstein, SD Foulkes, JW Gary, O Long, BC Shen, K Wang, L Zhang, D del Re, HK Hadavand, EJ Hill, DB MacFarlane, HP Paar, Sh Rahatlou, V Sharma, JW Berryhill, C Campagnari, A Cunha, B Dahmes, TM Hong, A Lu, MA Mazur, JD Richman, W Verkerke, TW Beck, AM Eisner, CJ Flacco, CA Heusch, J Kroseberg, WS Lockman, G Nesom, T Schalk, BA Schumm, A Seiden, P Spradlin, DC Williams, MG Wilson, J Albert, E Chen, GP Dubois-Felsmann, A Dvoretskii, DG Hitlin, I Narsky, T Piatenko, FC Porter, A Ryd, A Samuel, S Yang, S Jayatilleke, G Mancinelli, BT Meadows, MD Sokoloff, F Blanc, P Bloom, S Chen, WT Ford, U Nauenberg, A Olivas, P Rankin, WO Ruddick, JG Smith, KA Ulmer, J Zhang, A Chen, EA Eckhart, JL Harton, A Soffer, WH Toki, RJ Wilson, Q Zeng, B Spaan, D Altenburg, T Brandt, J Brose, M Dickopp, E Feltresi, A Hauke, HM Lacker, E Maly, R Nogowski, S Otto, A Petzold, G Schott, J Schubert, KR Schubert, R Schwierz, JE Sundermann, D Bernard, GR Bonneaud, P Grenier, S Schrenk, Ch Thiebaux, G Vasileiadis, M Verderi, DJ Bard, PJ Clark, W Gradl, F Muheim, S Playfer, Y Xie, M Andreotti, V Azzolini, D Bettoni, C Bozzi, R Calabrese, G Cibinetto, E Luppi, M Negrini, L Piemontese, A Sarti, F Anulli, R Baldini-Ferroli, A Calcaterra, R de Sangro, G Finocchiaro, P Patteri, IM Peruzzi, M Piccolo, A Zallo, A Buzzo, R Capra, R Contri, M Lo Vetere, M Macri, MR Monge, S Passaggio, C Patrignani, E Robutti, A Santroni, S Tosi, S Bailey, G Brandenburg, KS Chaisanguanthum, M Morii, E Won, RS Dubitzky, U Langenegger, J Marks, U Uwer, W Bhimji, DA Bowerman, PD Dauncey, U Egede, JR Gaillard, GW Morton, JA Nash, MB Nikolich, GP Taylor, MJ Charles, GJ Grenier, U Mallik, J Cochran, HB Crawley, WT Meyer, S Prell, EI Rosenberg, AE Rubin, J Yi, N Arnaud, M Davier, X Giroux, G Grosdidier, A Höcker, F Le Diberder, V Lepeltier, AM Lutz, TC Petersen, M Pierini, S Plaszczynski, S Rodier, P Roudeau, MH Schune, A Stocchi, G Wormser, CH Cheng, DJ Lange, MC Simani, DM Wright, AJ Bevan, CA Chavez, JP Coleman, IJ Forster, JR Fry, E Gabathuler, R Gamet, KA George, DE Hutchcroft, RJ Parry, DJ Payne, C Touramanis, CM Cormack, F Di Lodovico, CL Brown, G Cowan, RL Flack, HU Flaecher, MG Green, PS Jackson, TR McMahon, S Ricciardi, F Salvatore, MA Winter, D Brown, CL Davis, J Allison, NR Barlow, RJ Barlow, MC Hodgkinson, GD Lafferty, MT Naisbit, JC Williams, C Chen, A Farbin, WD Hulsbergen, A Jawahery, D Kovalskyi, CK Lae, V Lillard, DA Roberts, G Blaylock, C Dallapiccola, SS Hertzbach, R Kofler, VB Koptchev, TB Moore, S Saremi, H Staengle, S Willocq, R Cowan, K Koeneke, G Sciolla, SJ Sekula, F Taylor, RK Yamamoto, PM Patel, SH Robertson, A Lazzaro, V Lombardo, F Palombo, JM Bauer, L Cremaldi, V Eschenburg, R Godang, R Kroeger, J Reidy, DA Sanders, DJ Summers, HW Zhao, S Brunet, D Côté, P Taras, H Nicholson, N Cavallo, G De Nardo, F Fabozzi, C Gatto, L Lista, D Monorchio, P Paolucci, D Piccolo, C Sciacca, M Baak, H Bulten, G Raven, HL Snoek, L Wilden, CP Jessop, JM LoSecco, T Allmendinger, G Benelli, KK Gan, K Honscheid, D Hufnagel, H Kagan, R Kass, T Pulliam, AM Rahimi, R Ter-Antonyan, QK Wong, J Brau, R Frey, O Igonkina, M Lu, CT Potter, NB Sinev, D Strom, E Torrence, F Colecchia, A Dorigo, F Galeazzi, M Margoni, M Morandin, M Posocco, M Rotondo, F Simonetto, R Stroili, C Voci, M Benayoun, H Briand, J Chauveau, P David, L Del Buono, Ch de la Vaissière, O Hamon, MJJ John, Ph Leruste, J Malclès, J Ocariz, L Roos, G Therin, PK Behera, L Gladney, QH Guo, J Panetta, M Biasini, R Covarelli, S Pennazzi, M Pioppi, C Angelini, G Batignani, S Bettarini, F Bucci, G Calderini, M Carpinelli, F Forti, MA Giorgi, A Lusiani, G Marchiori, M Morganti, N Neri, E Paoloni, M Rama, G Rizzo, G Simi, J Walsh, M Haire, D Judd, K Paick, DE Wagoner, N Danielson, P Elmer, YP Lau, C Lu, J Olsen, AJS Smith, AV Telnov, F Bellini, G Cavoto, A D’Orazio, E Di Marco, R Faccini, F Ferrarotto, F Ferroni, M Gaspero, L Li Gioi, MA Mazzoni, S Morganti, G Piredda, F Polci, F Safai Tehrani, C Voena, S Christ, H Schröder, G Wagner, R Waldi, T Adye, N De Groot, B Franek, GP Gopal, EO Olaiya, FF Wilson, R Aleksan, S Emery, A Gaidot, SF Ganzhur, P-F Giraud, G Graziani, G Hamel de Monchenault, W Kozanecki, M Legendre, GW London, B Mayer, G Vasseur, Ch Yèche, M Zito, MV Purohit, AW Weidemann, JR Wilson, FX Yumiceva, T Abe, D Aston, R Bartoldus, N Berger, AM Boyarski, OL Buchmueller, R Claus, MR Convery, M Cristinziani, JC Dingfelder, D Dong, J Dorfan, D Dujmic, W Dunwoodie, S Fan, RC Field, T Glanzman, SJ Gowdy, T Hadig, V Halyo, C Hast, T Hryn’ova, WR Innes, MH Kelsey, P Kim, ML Kocian, DWGS Leith, J Libby, S Luitz, V Luth, HL Lynch, H Marsiske, R Messner, AK Mohapatra, DR Muller, CP O’Grady, VE Ozcan, A Perazzo, M Perl, BN Ratcliff, A Roodman, AA Salnikov, RH Schindler, J Schwiening, A Snyder, A Soha, J Stelzer, J Strube, D Su, MK Sullivan, J Va’vra, SR Wagner, M Weaver, WJ Wisniewski, M Wittgen, DH Wright, AK Yarritu, CC Young, PR Burchat, AJ Edwards, SA Majewski, BA Petersen, C Roat, M Ahmed, S Ahmed, MS Alam, JA Ernst, MA Saeed, M Saleem, FR Wappler, W Bugg, M Krishnamurthy, SM Spanier, R Eckmann, H Kim, JL Ritchie, A Satpathy, RF Schwitters, JM Izen, I Kitayama, XC Lou, S Ye, F Bianchi, M Bona, F Gallo, D Gamba, M Bomben, L Bosisio, C Cartaro, F Cossutti, G Della Ricca, S Dittongo, S Grancagnolo, L Lanceri, P Poropat, L Vitale, G Vuagnin, F Martinez-Vidal, RS Panvini, Sw Banerjee, B Bhuyan, CM Brown, D Fortin, K Hamano, PD Jackson, R Kowalewski, JM Roney, RJ Sobie, JJ Back, PF Harrison, TE Latham, GB Mohanty, HR Band, X Chen, B Cheng, S Dasu, M Datta, AM Eichenbaum, KT Flood, M Graham, JJ Hollar, JR Johnson, PE Kutter, H Li, R Liu, B Mellado, A Mihalyi, Y Pan, R Prepost, P Tan, JH von Wimmersperg-Toeller, J Wu, SL Wu, Z Yu, MG Greene, H Neal
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Measurement of the pp̄→Wγ+X cross section at s=1.96 TeV and WWγ anomalous coupling limits

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:9 (2005) 1-7

Authors:

VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, M Agelou, JL Agram, SH Ahn, M Ahsan, GD Alexeev, G Alkhazov, A Alton, G Alverson, GA Alves, M Anastasoaie, T Andeen, S Anderson, B Andrieu, Y Arnoud, A Askew, B Åsman, ACSA Jesus, O Atramentov, C Autermann, C Avila, F Badaud, A Baden, B Baldin, PW Balm, S Banerjee, E Barberis, P Bargassa, P Baringer, C Barnes, J Barreto, JF Bartlett, U Bassler, D Bauer, A Bean, S Beauceron, M Begel, A Bellavance, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, M Binder, C Biscarat, KM Black, I Blackler, G Blazey, F Blekman, S Blessing, D Bloch, U Blumenschein, A Boehnlein, O Boeriu, TA Bolton, F Borcherding, G Borissov, K Bos, T Bose, A Brandt, R Brock, G Brooijmans, A Bross, NJ Buchanan, D Buchholz, M Buehler, V Buescher, S Burdin, TH Burnett, E Busato, CP Buszello, JM Butler, J Bystricky, S Caron, W Carvalho, BCK Casey, NM Cason, H Castilla-Valdez, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, D Chapin, F Charles, E Cheu, DK Cho, S Choi, B Choudhary, T Christiansen, L Christofek, D Claes

Abstract:

The WWγ triple gauge boson coupling parameters are studied using pp̄rarr; νγ+X(=e,μ) events at s=1.96 TeV. The data were collected with the D0 detector from an integrated luminosity of 162pb-1 delivered by the Fermilab Tevatron Collider. The cross section times branching fraction for pp̄→W(γ)+X→ νγ+X with ETγ>8 GeV and ΔR γ> 0.7 is 14.8±1.6(stat)±1.0(syst) ±1.0(lum)pb. The one-dimensional 95% confidence level limits on anomalous couplings are -0.88<Δκγ<0.96 and -0. 20<λγ<0.20. © 2005 The American Physical Society.
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