Accelerator Neutrinos

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Search for sterile neutrino mixing in the MINOS long-baseline experiment

Physical Review D Particles Fields Gravitation and Cosmology 81:5 (2010)

Authors:

P Adamson, C Andreopoulos, DJ Auty, DS Ayres, C Backhouse, PD Barnes, G Barr, WL Barrett, M Bishai, A Blake, GJ Bock, DJ Boehnlein, D Bogert, C Bower, S Cavanaugh, JD Chapman, D Cherdack, S Childress, BC Choudhary, JAB Coelho, JH Cobb, SJ Coleman, JP Cravens, D Cronin-Hennessy, AJ Culling, IZ Danko, JK De Jong, NE Devenish, MV Diwan, M Dorman, AR Erwin, CO Escobar, JJ Evans, E Falk, GJ Feldman, MV Frohne, HR Gallagher, A Godley, MC Goodman, P Gouffon, R Gran, EW Grashorn, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, X Huang, J Hylen, GM Irwin, Z Isvan, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, G Koizumi, S Kopp, M Kordosky, DJ Koskinen, Z Krahn, A Kreymer, K Lang, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, J Ma, WA Mann, A Marchionni, ML Marshak, JS Marshall, N Mayer, AM McGowan, R Mehdiyev, JR Meier, MD Messier, CJ Metelko, DG Michael, WH Miller, SR Mishra, J Mitchell, CD Moore, J Morfín, L Mualem, S Mufson, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, TC Nicholls, JP Ochoa-Ricoux, WP Oliver, M Orchanian

Abstract:

A search for depletion of the combined flux of active neutrino species over a 735 km baseline is reported using neutral-current interaction data recorded by the MINOS detectors in the NuMI neutrino beam. Such a depletion is not expected according to conventional interpretations of neutrino oscillation data involving the three known neutrino flavors. A depletion would be a signature of oscillations or decay to postulated noninteracting sterile neutrinos, scenarios not ruled out by existing data. From an exposure of 3.18×1020 protons on target in which neutrinos of energies between ∼500MeV and 120 GeV are produced predominantly as νμ, the visible energy spectrum of candidate neutral-current reactions in the MINOS far detector is reconstructed. Comparison of this spectrum to that inferred from a similarly selected near-detector sample shows that of the portion of the νμ flux observed to disappear in charged-current interaction data, the fraction that could be converting to a sterile state is less than 52% at 90% confidence level (C.L.). The hypothesis that active neutrinos mix with a single sterile neutrino via oscillations is tested by fitting the data to various models. In the particular four-neutrino models considered, the mixing angles θ24 and θ34 are constrained to be less than 11° and 56° at 90% C.L., respectively. The possibility that active neutrinos may decay to sterile neutrinos is also investigated. Pure neutrino decay without oscillations is ruled out at 5.4 standard deviations. For the scenario in which active neutrinos decay into sterile states concurrently with neutrino oscillations, a lower limit is established for the neutrino decay lifetime τ3/m3>2.1×10-12s/eV at 90% C.L. © 2010 The American Physical Society.

Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events

Physical Review Letters 104:9 (2010)

Authors:

T Aaltonen, J Adelman, BA González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Attal, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, G Bauer, PH Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, D Berge, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, K Chung, WH Chung, YS Chung, T Chwalek, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella, ME Convery, J Conway

Abstract:

We report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW. We search for a significant excess of events with two same-charge leptons (e, μ), several hadronic jets, and missing transverse energy. An analysis of data from pp̄ collisions with an integrated luminosity of 2.7fb-1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb ′, mB>338GeV/c2 and mT5/3>365GeV/c2 at 95% confidence level. © 2010 The American Physical Society.

Measurements of branching fraction ratios and CP asymmetries in B ±→DCPK± decays in hadron collisions

Physical Review D Particles Fields Gravitation and Cosmology 81:3 (2010)

Authors:

T Aaltonen, J Adelman, BA González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Attal, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, G Bauer, PH Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, K Chung, WH Chung, YS Chung, T Chwalek, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella, ME Convery, J Conway, M Corbo

Abstract:

We reconstruct B±→D± decays in a data sample collected by the CDF II detector at the Tevatron collider corresponding to 1fb-1 of integrated luminosity. We select decay modes where the D meson decays to either K-π+ (flavor eigenstate) or K-K+, π-π+ (CP-even eigenstates), and measure the direct CP asymmetry ACP+=0.39±0. 17(stat)±0.04(syst), and the double ratio of CP-even to flavor eigenstate branching fractions RCP+=1.30±0.24(stat)±0.12(syst). These measurements will improve the determination of the Cabibbo-Kobayashi-Maskawa angle γ. They are performed here for the first time using data from hadron collisions. © 2010 The American Physical Society.

Measurement of the top quark mass in the dilepton channel using mT2 at CDF

Physical Review D - Particles, Fields, Gravitation and Cosmology 81:3 (2010)

Authors:

T Aaltonen, J Adelman, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, A Attal, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, G Bauer, PH Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, G Choudalakis, K Chung, WH Chung, YS Chung, T Chwalek, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella, ME Convery, J Conway

Abstract:

We present measurements of the top quark mass using mT2, a variable related to the transverse mass in events with two missing particles. We use the template method applied to tt̄ dilepton events produced in pp̄ collisions at Fermilab's Tevatron Collider and collected by the CDF detector. From a data sample corresponding to an integrated luminosity of 3.4fb -1, we select 236 tt̄ candidate events. Using the mT2 distribution, we measure the top quark mass to be Mtop=168.0-4.0+4.8(stat) ±2.9(syst)GeV/c2. By combining mT2 with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure Mtop=169.3±2.7(stat)±3.2(syst)GeV/c2. This is the first application of the mT2 variable in a mass measurement at a hadron collider. © 2010 The American Physical Society.

Combination of Tevatron searches for the standard model Higgs boson in the W+W- decay mode.

Phys Rev Lett 104:6 (2010) 061802

Authors:

T Aaltonen, VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, J Adelman, E Aguilo, GD Alexeev, G Alkhazov, A Alton, B Alvarez González, G Alverson, GA Alves, S Amerio, D Amidei, A Anastassov, LS Ancu, A Annovi, J Antos, M Aoki, G Apollinari, J Appel, A Apresyan, T Arisawa, Y Arnoud, M Arov, A Artikov, J Asaadi, W Ashmanskas, A Askew, B Asman, O Atramentov, A Attal, A Aurisano, C Avila, F Azfar, J BackusMayes, F Badaud, W Badgett, L Bagby, B Baldin, DV Bandurin, S Banerjee, A Barbaro-Galtieri, E Barberis, A-F Barfuss, P Baringer, VE Barnes, BA Barnett, J Barreto, P Barria, JF Bartlett, P Bartos, U Bassler, D Bauer, G Bauer, S Beale, A Bean, P-H Beauchemin, F Bedeschi, D Beecher, M Begalli, M Begel, S Behari, C Belanger-Champagne, L Bellantoni, G Bellettini, J Bellinger, JA Benitez, D Benjamin, A Beretvas, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, G Blazey, S Blessing, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, A Boehnlein, V Boisvert, D Boline, TA Bolton, EE Boos, G Borissov, D Bortoletto, T Bose, J Boudreau, A Boveia, A Brandt, B Brau, A Bridgeman, L Brigliadori, R Brock, C Bromberg, G Brooijmans, A Bross, D Brown, E Brubaker, XB Bu, D Buchholz, J Budagov, HS Budd, S Budd, M Buehler, V Buescher, V Bunichev, S Burdin, K Burkett, TH Burnett, G Busetto, P Bussey, CP Buszello, A Buzatu, KL Byrum, S Cabrera, C Calancha, P Calfayan, B Calpas, S Calvet, E Camacho-Pérez, S Camarda, J Cammin, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, MA Carrasco-Lizarraga, E Carrera, S Carrillo, S Carron, B Casal, M Casarsa, BCK Casey, H Castilla-Valdez, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, SH Chang, YC Chen, M Chertok, E Cheu, S Chevalier-Théry, G Chiarelli, G Chlachidze, F Chlebana, K Cho, DK Cho, SW Cho, S Choi, D Chokheli, JP Chou, B Choudhary, T Christoudias, K Chung, WH Chung, YS Chung, T Chwalek, S Cihangir, CI Ciobanu, MA Ciocci, D Claes, A Clark, D Clark, J Clutter, G Compostella, ME Convery, J Conway, M Cooke, WE Cooper, M Corbo, M Corcoran, M Cordelli, F Couderc, M-C Cousinou, CA Cox, DJ Cox, F Crescioli, C Cuenca Almenar, J Cuevas, R Culbertson, JC Cully, D Cutts, M Cwiok, D Dagenhart, N d'Ascenzo, A Das, M Datta, G Davies, T Davies, K De, P de Barbaro, S De Cecco, A Deisher, SJ de Jong, E De la Cruz-Burelo, F Déliot, M Dell'Orso, G De Lorenzo, C Deluca, M Demarteau, R Demina, L Demortier, J Deng, M Deninno, D Denisov, SP Denisov, M d'Errico, S Desai, K DeVaughan, A Di Canto, HT Diehl, M Diesburg, B Di Ruzza, JR Dittmann, A Dominguez, S Donati, P Dong, M D'Onofrio, T Dorigo, T Dorland, S Dube, A Dubey, LV Dudko, L Duflot, D Duggan, A Duperrin, S Dutt, A Dyshkant, M Eads, K Ebina, D Edmunds, A Elagin, J Ellison, VD Elvira, Y Enari, S Eno, R Erbacher, D Errede, S Errede, N Ershaidat, R Eusebi, H Evans, A Evdokimov, VN Evdokimov, G Facini, HC Fang, S Farrington, WT Fedorko, RG Feild, M Feindt, AV Ferapontov, T Ferbel, JP Fernandez, C Ferrazza, F Fiedler, R Field, F Filthaut, W Fisher, HE Fisk, G Flanagan, R Forrest, M Fortner, H Fox, MJ Frank, M Franklin, JC Freeman, S Fuess, I Furic, T Gadfort, CF Galea, M Gallinaro, J Galyardt, F Garberson, JE Garcia, A Garcia-Bellido, AF Garfinkel, P Garosi, V Gavrilov, P Gay, W Geist, W Geng, D Gerbaudo, CE Gerber, H Gerberich, D Gerdes, Y Gershtein, A Gessler, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, D Gillberg, JL Gimmell, CM Ginsburg, G Ginther, N Giokaris, M Giordani, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, A Golossanov, G Golovanov, B Gómez, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, AT Goshaw, K Goulianos, A Goussiou, PD Grannis, S Greder, H Greenlee, ZD Greenwood, EM Gregores, G Grenier, A Gresele, S Grinstein, Ph Gris, J-F Grivaz, A Grohsjean, C Grosso-Pilcher, RC Group, U Grundler, S Grünendahl, MW Grünewald, J Guimaraes da Costa, Z Gunay-Unalan, F Guo, J Guo, G Gutierrez, P Gutierrez, A Haas, C Haber, P Haefner, S Hagopian, SR Hahn, J Haley, E Halkiadakis, I Hall, B-Y Han, JY Han, L Han, F Happacher, K Hara, K Harder, D Hare, M Hare, A Harel, RF Harr, M Hartz, K Hatakeyama, JM Hauptman, C Hays, J Hays, T Hebbeker, M Heck, D Hedin, JG Hegeman, J Heinrich, AP Heinson, U Heintz, C Hensel, I Heredia-De la Cruz, M Herndon, K Herner, G Hesketh, J Heuser, S Hewamanage, D Hidas, MD Hildreth, CS Hill, R Hirosky, D Hirschbuehl, T Hoang, JD Hobbs, A Hocker, B Hoeneisen, M Hohlfeld, S Hossain, P Houben, S Hou, M Houlden, S-C Hsu, Y Hu, Z Hubacek, RE Hughes, M Hurwitz, U Husemann, N Huske, M Hussein, J Huston, V Hynek, I Iashvili, R Illingworth, J Incandela, G Introzzi, M Iori, AS Ito, A Ivanov, S Jabeen, M Jaffré, S Jain, E James, D Jamin, D Jang, B Jayatilaka, EJ Jeon, R Jesik, MK Jha, S Jindariani, K Johns, C Johnson, M Johnson, W Johnson, D Johnston, A Jonckheere, M Jones, P Jonsson, KK Joo, SY Jun, JE Jung, TR Junk, A Juste, E Kajfasz, T Kamon, PE Karchin, D Kar, D Karmanov, PA Kasper, Y Kato, I Katsanos, V Kaushik, R Kehoe, R Kephart, S Kermiche, W Ketchum, J Keung, N Khalatyan, A Khanov, A Kharchilava, YN Kharzheev, D Khatidze, V Khotilovich, B Kilminster, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, N Kimura, MH Kirby, L Kirsch, M Kirsch, S Klimenko, JM Kohli, K Kondo, DJ Kong, J Konigsberg, A Korytov, AV Kotwal, AV Kozelov, J Kraus, M Kreps, J Kroll, D Krop, N Krumnack, M Kruse, V Krutelyov, T Kuhr, NP Kulkarni, A Kumar, A Kupco, M Kurata, T Kurca, VA Kuzmin, J Kvita, S Kwang, AT Laasanen, D Lam, S Lami, S Lammel, S Lammers, M Lancaster, RL Lander, G Landsberg, K Lannon, A Lath, G Latino, I Lazzizzera, P Lebrun, T LeCompte, E Lee, HS Lee, HS Lee, JS Lee, SW Lee, WM Lee, A Leflat, J Lellouch, S Leone, JD Lewis, L Li, QZ Li, SM Lietti, JK Lim, J Linacre, D Lincoln, C-J Lin, M Lindgren, J Linnemann, VV Lipaev, E Lipeles, R Lipton, A Lister, DO Litvintsev, C Liu, T Liu, Y Liu, Z Liu, A Lobodenko, NS Lockyer, A Loginov, M Lokajicek, L Lovas, P Love, HJ Lubatti, D Lucchesi, J Lueck, P Lujan, P Lukens, R Luna-Garcia, G Lungu, AL Lyon, R Lysak, J Lys, AKA Maciel, D Mackin, D MacQueen, R Madrak, K Maeshima, R Magaña-Villalba, K Makhoul, P Maksimovic, PK Mal, S Malde, S Malik, S Malik, VL Malyshev, G Manca, A Manousakis-Katsikakis, Y Maravin, F Margaroli, C Marino, CP Marino, A Martin, V Martin, M Martínez, R Martínez-Ballarín, J Martínez-Ortega, P Mastrandrea, M Mathis, P Mättig, ME Mattson, P Mazzanti, R McCarthy, KS McFarland, CL McGivern, P McIntyre, R McNulty, A Mehta, P Mehtala, MM Meijer, A Melnitchouk, L Mendoza, D Menezes, A Menzione, PG Mercadante, M Merkin, C Mesropian, A Meyer, J Meyer, T Miao, D Mietlicki, N Miladinovic, R Miller, C Mills, M Milnik, A Mitra, G Mitselmakher, H Miyake, S Moed, N Moggi, NK Mondal, MN Mondragon, CS Moon, R Moore, MJ Morello, J Morlock, T Moulik, P Movilla Fernandez, GS Muanza, A Mukherjee, M Mulhearn, Th Muller, J Mülmenstädt, O Mundal, L Mundim, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, E Nagy, M Naimuddin, K Nakamura, I Nakano, A Napier, M Narain, R Nayyar, HA Neal, JP Negret, J Nett, C Neu, MS Neubauer, S Neubauer, P Neustroev, J Nielsen, H Nilsen, L Nodulman, H Nogima, M Norman, O Norniella, SF Novaes, T Nunnemann, E Nurse, L Oakes, G Obrant, SH Oh, YD Oh, I Oksuzian, T Okusawa, D Onoprienko, R Orava, J Orduna, N Osman, J Osta, K Osterberg, R Otec, GJ Otero y Garzón, M Owen, M Padilla, P Padley, S Pagan Griso, C Pagliarone, E Palencia, M Pangilinan, V Papadimitriou, A Papaikonomou, AA Paramanov, N Parashar, V Parihar, S-J Park, SK Park, B Parks, J Parsons, R Partridge, N Parua, S Pashapour, J Patrick, A Patwa, G Pauletta, M Paulini, C Paus, T Peiffer, DE Pellett, B Penning, A Penzo, M Perfilov, K Peters, Y Peters, P Pétroff, TJ Phillips, G Piacentino, E Pianori, R Piegaia, L Pinera, J Piper, K Pitts, C Plager, M-A Pleier, PLM Podesta-Lerma, VM Podstavkov, M-E Pol, P Polozov, L Pondrom, AV Popov, K Potamianos, O Poukhov, M Prewitt, D Price, F Prokoshin, A Pronko, S Protopopescu, F Ptohos, E Pueschel, G Punzi, J Pursley, J Qian, A Quadt, B Quinn, J Rademacker, A Rahaman, V Ramakrishnan, MS Rangel, K Ranjan, N Ranjan, PN Ratoff, I Razumov, I Redondo, P Renkel, P Renton, M Renz, M Rescigno, P Rich, S Richter, M Rijssenbeek, F Rimondi, I Ripp-Baudot, L Ristori, F Rizatdinova, S Robinson, A Robson, T Rodrigo, T Rodriguez, E Rogers, S Rolli, M Rominsky, R Roser, M Rossi, R Rossin, P Roy, C Royon, P Rubinov, R Ruchti, A Ruiz, J Russ, V Rusu, B Rutherford, H Saarikko, A Safonov, G Safronov, G Sajot, WK Sakumoto, A Sánchez-Hernández, MP Sanders, B Sanghi, L Santi, L Sartori, K Sato, G Savage, V Saveliev, A Savoy-Navarro, L Sawyer, T Scanlon, D Schaile, RD Schamberger, Y Scheglov, H Schellman, P Schlabach, T Schliephake, S Schlobohm, A Schmidt, EE Schmidt, MA Schmidt, MP Schmidt, M Schmitt, C Schwanenberger, T Schwarz, R Schwienhorst, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, J Sekaric, A Semenov, H Severini, L Sexton-Kennedy, F Sforza, A Sfyrla, E Shabalina, SZ Shalhout, V Shary, AA Shchukin, T Shears, PF Shepard, M Shimojima, S Shiraishi, RK Shivpuri, M Shochet, Y Shon, I Shreyber, V Simak, A Simonenko, P Sinervo, V Sirotenko, A Sisakyan, P Skubic, P Slattery, AJ Slaughter, J Slaunwhite, K Sliwa, D Smirnov, JR Smith, FD Snider, R Snihur, GR Snow, J Snow, S Snyder, A Soha, S Söldner-Rembold, S Somalwar, L Sonnenschein, A Sopczak, V Sorin, M Sosebee, K Soustruznik, B Spurlock, P Squillacioti, M Stanitzki, J Stark, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, V Stolin, DA Stoyanova, J Strandberg, MA Strang, E Strauss, M Strauss, R Ströhmer, J Strologas, D Strom, GL Strycker, L Stutte, JS Suh, A Sukhanov, I Suslov, P Svoisky, A Taffard, M Takahashi, R Takashima, Y Takeuchi, R Tanaka, A Tanasijczuk, J Tang, W Taylor, M Tecchio, PK Teng, J Thom, J Thome, GA Thompson, E Thomson, B Tiller, P Tipton, M Titov, S Tkaczyk, D Toback, S Tokar, VV Tokmenin, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, S-Y Tsai, D Tsybychev, P Ttito-Guzmán, B Tuchming, Y Tu, C Tully, N Turini, PM Tuts, F Ukegawa, R Unalan, S Uozumi, L Uvarov, S Uvarov, S Uzunyan, PJ van den Berg, R Van Kooten, WM van Leeuwen, N van Remortel, N Varelas, A Varganov, EW Varnes, IA Vasilyev, E Vataga, F Vázquez, G Velev, C Vellidis, P Verdier, LS Vertogradov, M Verzocchi, M Vesterinen, M Vidal, I Vila, D Vilanova, R Vilar, P Vint, M Vogel, P Vokac, I Volobouev, G Volpi, P Wagner, RG Wagner, RL Wagner, W Wagner, J Wagner-Kuhr, HD Wahl, T Wakisaka, R Wallny, MHLS Wang, SM Wang, A Warburton, J Warchol, D Waters, G Watts, M Wayne, G Weber, M Weber, M Weinberger, J Weinelt, WC Wester, M Wetstein, A White, B Whitehouse, D Whiteson, D Wicke, AB Wicklund, E Wicklund, S Wilbur, G Williams, HH Williams, MRJ Williams, GW Wilson, P Wilson, SJ Wimpenny, BL Winer, P Wittich, M Wobisch, S Wolbers, C Wolfe, H Wolfe, DR Wood, T Wright, X Wu, F Würthwein, TR Wyatt, Y Xie, C Xu, S Yacoob, A Yagil, R Yamada, K Yamamoto, J Yamaoka, UK Yang, W-C Yang, YC Yang, WM Yao, T Yasuda, YA Yatsunenko, Z Ye, GP Yeh, K Yi, H Yin, K Yip, J Yoh, HD Yoo, K Yorita, T Yoshida, SW Youn, GB Yu, I Yu, J Yu, SS Yu, JC Yun, A Zanetti, C Zeitnitz, S Zelitch, Y Zeng, X Zhang, T Zhao, Y Zheng, B Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic, S Zucchelli, V Zutshi, EG Zverev, CDF Collaboration, D0 Collaboration

Abstract:

We combine searches by the CDF and D0 Collaborations for a Higgs boson decaying to W+W-. The data correspond to an integrated total luminosity of 4.8 (CDF) and 5.4 (D0) fb(-1) of pp collisions at square root(s) = 1.96 TeV at the Fermilab Tevatron collider. No excess is observed above background expectation, and resulting limits on Higgs boson production exclude a standard model Higgs boson in the mass range 162-166 GeV at the 95% C.L.