Sneha Malde: Publications

Search for the production of scalar bottom quarks in pp̄ collisions at √s=1.96TeV

Physical Review Letters 105:8 (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, 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 report on a search for direct scalar bottom quark (sbottom) pair production in pp̄ collisions at √s=1.96TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65fb-1 of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70GeV/c2, sbottom masses up to 230GeV/c2 are excluded at 95% confidence level. © 2010 The American Physical Society.

More details from the publisher

Prompt K_short production in pp collisions at sqrt(s)=0.9 TeV

ArXiv 1008.3105 (2010)

Authors:

LHCb Collaboration, R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, C Adrover, A Affolder, M Agari, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, M Alfonsi, P Alvarez Cartelle, AA Alves Jr, S Amato, Y Amhis, J Amoraal, J Anderson, R Antunes Nobrega, R Appleby, O Aquines Gutierrez, A Arefyev, L Arrabito, M Artuso, E Aslanides, G Auriemma, S Bachmann, Y Bagaturia, DS Bailey, V Balagura, W Baldini, G Barber, C Barham, RJ Barlow, S Barsuk, S Basiladze, A Bates, C Bauer, Th Bauer, A Bay, I Bediaga, T Bellunato, K Belous, I Belyaev, M Benayoun, G Bencivenni, R Bernet, RP Bernhard, M-O Bettler, M van Beuzekom, JH Bibby, S Bifani, A Bizzeti, PM Bjørnstad, T Blake, F Blanc, C Blanks, J Blouw, S Blusk, A Bobrov, V Bocci, B Bochin, E Bonaccorsi, A Bondar, N Bondar, W Bonivento, S Borghi, A Borgia, E Bos, TJV Bowcock, C Bozzi, T Brambach, J van den Brand, L Brarda, J Bressieux, S Brisbane, M Britsch, NH Brook, H Brown, S Brusa, A Büchler-Germann, A Bursche, J Buytaert, S Cadeddu, JM Caicedo Carvajal, O Callot, M Calvi, M Calvo Gomez, A Camboni, W Cameron, L Camilleri, P Campana, A Carbone, G Carboni, R Cardinale, A Cardini, J Carroll, L Carson, K Carvalho Akiba, G Casse, M Cattaneo, B Chadaj, M Charles, Ph Charpentier, J Cheng, N Chiapolini, A Chlopik, J Christiansen, P Ciambrone, X Cid Vidal, PJ Clark, PEL Clarke, M Clemencic, HV Cliff, J Closier, C Coca, V Coco, J Cogan, P Collins, A Comerma-Montells, F Constantin, G Conti, A Contu, P Cooke, M Coombes, B Corajod, G Corti, GA Cowan, R Currie, B D'Almagne, C D'Ambrosio, I D'Antone, W Da Silva, E Dane', P David, I De Bonis, S De Capua, M De Cian, F De Lorenzi, JM De Miranda, L De Paula, P De Simone, D Decamp, G Decreuse, H Degaudenzi, M Deissenroth, L Del Buono, CJ Densham, C Deplano, O Deschamps, F Dettori, J Dickens, H Dijkstra, M Dima, S Donleavy, P Dornan, D Dossett, A Dovbnya, R Dumps, F Dupertuis, L Dwyer, R Dzhelyadin, C Eames, S Easo, U Egede, V Egorychev, S Eidelman, D van Eijk, F Eisele, S Eisenhardt, L Eklund, DG d'Enterria, D Esperante Pereira, L Estève, E Fanchini, C Färber, G Fardell, C Farinelli, S Farry, V Fave, G Felici, V Fernandez Albor, M Ferro-Luzzi, S Filippov, C Fitzpatrick, W Flegel, F Fontanelli, C Forti, R Forty, C Fournier, B Franek, M Frank, C Frei, M Frosini, JL Fungueirino Pazos, S Furcas, A Gallas Torreira, D Galli, M Gandelman, P Gandini, Y Gao, J-C Garnier, L Garrido, D Gascon, C Gaspar, A Gaspar De Valenzuela Cue, J Gassner, N Gauvin, P Gavillet, M Gersabeck, T Gershon, Ph Ghez, V Gibson, Yu Gilitsky, VV Gligorov, C Göbel, D Golubkov, A Golutvin, A Gomes, G Gong, H Gong, H Gordon, M Grabalosa Gándara, V Gracco, R Graciani Diaz, LA Granado Cardoso, E Graugés, G Graziani, A Grecu, S Gregson, G Guerrer, B Gui, E Gushchin, Yu Guz, Z Guzik, T Gys, G Haefeli, SC Haines, T Hampson, S Hansmann-Menzemer, R Harji, N Harnew, PF Harrison, J He, K Hennessy, P Henrard, JA Hernando Morata, E van Herwijnen, A Hicheur, E Hicks, HJ Hilke, W Hofmann, K Holubyev, P Hopchev, W Hulsbergen, P Hunt, T Huse, RS Huston, D Hutchcroft, F Iacoangeli, V Iakovenko, C Iglesias Escudero, C Ilgner, J Imong, R Jacobsson, M Jahjah Hussein, O Jamet, E Jans, F Jansen, P Jaton, B Jean-Marie, M John, D Johnson, CR Jones, B Jost, F Kapusta, TM Karbach, A Kashchuk, S Katvars, J Keaveney, U Kerzel, T Ketel, A Keune, S Khalil, B Khanji, YM Kim, M Knecht, S Koblitz, A Konoplyannikov, P Koppenburg, M Korolev, A Kozlinskiy, L Kravchuk, R Kristic, G Krocker, P Krokovny, F Kruse, K Kruzelecki, M Kucharczyk, I Kudryashov, S Kukulak, R Kumar, T Kvaratskheliya, VN La Thi, D Lacarrere, A Lai, RW Lambert, G Lanfranchi, C Langenbruch, T Latham, R Le Gac, J-P Lees, R Lefèvre, A Leflat, J Lefrançois, F Lehner, M Lenzi, O Leroy, T Lesiak, L Li, YY Li, L Li Gioi, J Libby, M Lieng, R Lindner, S Lindsey, C Linn, B Liu, G Liu, S Löchner, JH Lopes, E Lopez Asamar, N Lopez-March, P Loveridge, J Luisier, B M'charek, F Machefert, IV Machikhiliyan, F Maciuc, O Maev, J Magnin, A Maier, S Malde, RMD Mamunur, G Manca, G Mancinelli, N Mangiafave, U Marconi, R Märki, J Marks, G Martellotti, A Martens, L Martin, D Martinez Santos, A Massaferri, Z Mathe, C Matteuzzi, V Matveev, E Maurice, B Maynard, A Mazurov, G McGregor, R McNulty, C Mclean, M Merk, J Merkel, M Merkin, R Messi, FCD Metlica, S Miglioranzi, M-N Minard, G Moine, S Monteil, D Moran, J Morant, JV Morris, J Moscicki, R Mountain, I Mous, F Muheim, R Muresan, F Murtas, B Muryn, M Musy, J Mylroie-Smith, P Naik, T Nakada, R Nandakumar, J Nardulli, A Nawrot, M Nedos, M Needham, N Neufeld, P Neustroev, M Nicol, L Nicolas, S Nies, V Niess, N Nikitin, A Noor, A Oblakowska-Mucha, V Obraztsov, S Oggero, O Okhrimenko, R Oldeman, M Orlandea, A Ostankov, J Palacios, M Palutan, J Panman, A Papadelis, A Papanestis, M Pappagallo, C Parkes, CJ Parkinson, G Passaleva, GD Patel, M Patel, SK Paterson, GN Patrick, C Patrignani, E Pauna, C Pauna, C Pavel, A Pazos Alvarez, A Pellegrino, G Penso, M Pepe Altarelli, S Perazzini, DL Perego, E Perez Trigo, A Pérez-Calero Yzquierdo, P Perret, G Pessina, A Petrella, A Petrolini, E Picatoste Olloqui, B Pie Valls, D Piedigrossi, B Pietrzyk, D Pinci, S Playfer, M Plo Casasus, M Poli-Lener, G Polok, A Poluektov, E Polycarpo, D Popov, B Popovici, S Poss, C Potterat, A Powell, S Pozzi, T du Pree, V Pugatch, A Puig Navarro, W Qian, JH Rademacker, B Rakotomiaramanana, I Raniuk, G Raven, S Redford, W Reece, AC dos Reis, S Ricciardi, J Riera, K Rinnert, DA Roa Romero, P Robbe, E Rodrigues, F Rodrigues, C Rodriguez Cobo, P Rodriguez Perez, GJ Rogers, V Romanovsky, E Rondan Sanabria, M Rosello, G Rospabe, J Rouvinet, L Roy, T Ruf, H Ruiz, C Rummel, V Rusinov, G Sabatino, JJ Saborido Silva, N Sagidova, P Sail, B Saitta, T Sakhelashvili, C Salzmann, A Sambade Varela, M Sannino, R Santacesaria, R Santinelli, E Santovetti, M Sapunov, A Sarti, C Satriano, A Satta, T Savidge, M Savrie, D Savrina, P Schaack, M Schiller, S Schleich, M Schmelling, B Schmidt, O Schneider, T Schneider, A Schopper, M-H Schune, R Schwemmer, A Sciubba, M Seco, A Semennikov, K Senderowska, N Serra, J Serrano, B Shao, M Shapkin, I Shapoval, P Shatalov, Y Shcheglov, T Shears, L Shekhtman, V Shevchenko, A Shires, S Sigurdsson, E Simioni, HP Skottowe, T Skwarnicki, N Smale, A Smith, AC Smith, NA Smith, K Sobczak, FJP Soler, A Solomin, P Somogy, F Soomro, B Souza De Paula, B Spaan, A Sparkes, E Spiridenkov, P Spradlin, A Srednicki, F Stagni, S Stahl, S Steiner, O Steinkamp, O Stenyakin, S Stoica, S Stone, B Storaci, U Straumann, N Styles, M Szczekowski, P Szczypka, T Szumlak, S T'Jampens, E Tarkovskiy, E Teodorescu, H Terrier, F Teubert, C Thomas, E Thomas, J van Tilburg, V Tisserand, M Tobin, S Topp-Joergensen, MT Tran, S Traynor, U Trunk, A Tsaregorodtsev, N Tuning, A Ukleja, O Ullaland, U Uwer, V Vagnoni, G Valenti, A Van Lysebetten, R Vazquez Gomez, P Vazquez Regueiro, S Vecchi, JJ Velthuis, M Veltri, K Vervink, B Viaud, I Videau, D Vieira, X Vilasis-Cardona, J Visniakov, A Vollhardt, D Volyanskyy, D Voong, A Vorobyev, An Vorobyev, H Voss, K Wacker, S Wandernoth, J Wang, DR Ward, AD Webber, D Websdale, M Whitehead, D Wiedner, L Wiggers, G Wilkinson, MP Williams, M Williams, FF Wilson, J Wishahi, M Witek, W Witzeling, ML Woodward, SA Wotton, K Wyllie, Y Xie, F Xing, Z Yang, G Ybeles Smit, R Young, O Yushchenko, M Zeng, L Zhang, Y Zhang, A Zhelezov, E Zverev

Abstract:

The production of K_short mesons in pp collisions at a centre-of-mass energy of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The luminosity of the analysed sample is determined using a novel technique, involving measurements of the beam currents, sizes and positions, and is found to be 6.8 +/- 1.0 microbarn^-1. The differential prompt K_short production cross-section is measured as a function of the K_short transverse momentum and rapidity in the region 0 < pT < 1.6 GeV/c and 2.5 < y < 4.0. The data are found to be in reasonable agreement with previous measurements and generator expectations.

Details from ArXiV

More details from the publisher

Search for new color-octet vector particle decaying to tT{topbar} in pP{topbar} collisions at √s=1.96 TeV

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 691:4 (2010) 183-190

Authors:

Abstract:

We present the result of a search for a massive color-octet vector particle, (e.g. a massive gluon) decaying to a pair of top quarks in proton-antiproton collisions with a center-of-mass energy of 1.96 TeV. This search is based on 1.9 fb-1 of data collected using the CDF detector during Run II of the Tevatron at Fermilab. We study tT{topbar} events in the lepton. +. jets channel with at least one b-tagged jet. A massive gluon is characterized by its mass, decay width, and the strength of its coupling to quarks. These parameters are determined according to the observed invariant mass distribution of top quark pairs. We set limits on the massive gluon coupling strength for masses between 400 and 800 GeV/c2 and width-to-mass ratios between 0.05 and 0.50. The coupling strength of the hypothetical massive gluon to quarks is consistent with zero within the explored parameter space. © 2010 Elsevier B.V.

More details from the publisher

Measurement of W-boson polarization in Top-Quark Decay in pp collisions at sqrt[s]=1.96 TeV.

Phys Rev Lett 105:4 (2010) 042002

Authors:

T Aaltonen, J Adelman, B Alvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, J Appel, 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, P-H 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, M Cordelli, CA Cox, DJ Cox, F Crescioli, C Cuenca Almenar, J Cuevas, R Culbertson, JC Cully, D Dagenhart, N d'Ascenzo, M Datta, T Davies, P de Barbaro, S De Cecco, A Deisher, G De Lorenzo, M Dell'orso, C Deluca, L Demortier, J Deng, M Deninno, M d'Errico, A Di Canto, B Di Ruzza, JR Dittmann, M D'Onofrio, S Donati, P Dong, T Dorigo, S Dube, K Ebina, A Elagin, R Erbacher, D Errede, S Errede, N Ershaidat, R Eusebi, HC Fang, S Farrington, WT Fedorko, RG Feild, M Feindt, JP Fernandez, C Ferrazza, R Field, G Flanagan, R Forrest, MJ Frank, M Franklin, JC Freeman, I Furic, M Gallinaro, J Galyardt, F Garberson, JE Garcia, AF Garfinkel, P Garosi, H Gerberich, D Gerdes, A Gessler, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, JL Gimmell, CM Ginsburg, N Giokaris, M Giordani, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, A Golossanov, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, AT Goshaw, K Goulianos, A Gresele, S Grinstein, C Grosso-Pilcher, U Grundler, J Guimaraes da Costa, Z Gunay-Unalan, C Haber, SR Hahn, E Halkiadakis, B-Y Han, JY Han, F Happacher, K Hara, D Hare, M Hare, RF Harr, M Hartz, K Hatakeyama, C Hays, M Heck, J Heinrich, M Herndon, J Heuser, S Hewamanage, D Hidas, CS Hill, D Hirschbuehl, A Hocker, S Hou, M Houlden, S-C Hsu, RE Hughes, M Hurwitz, U Husemann, M Hussein, J Huston, J Incandela, G Introzzi, M Iori, A Ivanov, E James, D Jang, B Jayatilaka, EJ Jeon, MK Jha, S Jindariani, W Johnson, M Jones, KK Joo, SY Jun, JE Jung, TR Junk, T Kamon, D Kar, PE Karchin, Y Kato, R Kephart, W Ketchum, J Keung, V Khotilovich, B Kilminster, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kim, N Kimura, L Kirsch, S Klimenko, K Kondo, DJ Kong, J Konigsberg, A Korytov, AV Kotwal, M Kreps, J Kroll, D Krop, N Krumnack, M Kruse, V Krutelyov, T Kuhr, NP Kulkarni, M Kurata, S Kwang, AT Laasanen, S Lami, S Lammel, M Lancaster, RL Lander, K Lannon, A Lath, G Latino, I Lazzizzera, T Lecompte, E Lee, HS Lee, JS Lee, SW Lee, S Leone, JD Lewis, C-J Lin, J Linacre, M Lindgren, E Lipeles, A Lister, DO Litvintsev, C Liu, T Liu, NS Lockyer, A Loginov, L Lovas, D Lucchesi, J Lueck, P Lujan, P Lukens, G Lungu, J Lys, R Lysak, D Macqueen, R Madrak, K Maeshima, K Makhoul, P Maksimovic, S Malde, S Malik, G Manca, A Manousakis-Katsikakis, F Margaroli, C Marino, CP Marino, A Martin, V Martin, M Martínez, R Martínez-Ballarín, P Mastrandrea, M Mathis, ME Mattson, P Mazzanti, KS McFarland, P McIntyre, R McNulty, A Mehta, P Mehtala, A Menzione, C Mesropian, T Miao, D Mietlicki, N Miladinovic, R Miller, C Mills, M Milnik, A Mitra, G Mitselmakher, H Miyake, S Moed, N Moggi, MN Mondragon, CS Moon, R Moore, MJ Morello, J Morlock, P Movilla Fernandez, J Mülmenstädt, A Mukherjee, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, K Nakamura, I Nakano, A Napier, J Nett, C Neu, MS Neubauer, S Neubauer, J Nielsen, L Nodulman, M Norman, O Norniella, E Nurse, L Oakes, SH Oh, YD Oh, I Oksuzian, T Okusawa, R Orava, K Osterberg, S Pagan Griso, C Pagliarone, E Palencia, V Papadimitriou, A Papaikonomou, AA Paramanov, B Parks, S Pashapour, J Patrick, G Pauletta, M Paulini, C Paus, T Peiffer, DE Pellett, A Penzo, TJ Phillips, G Piacentino, E Pianori, L Pinera, K Pitts, C Plager, L Pondrom, K Potamianos, O Poukhov, F Prokoshin, A Pronko, F Ptohos, E Pueschel, G Punzi, J Pursley, J Rademacker, A Rahaman, V Ramakrishnan, N Ranjan, I Redondo, P Renton, M Renz, M Rescigno, S Richter, F Rimondi, L Ristori, A Robson, T Rodrigo, T Rodriguez, E Rogers, S Rolli, R Roser, M Rossi, R Rossin, P Roy, A Ruiz, J Russ, V Rusu, B Rutherford, H Saarikko, A Safonov, WK Sakumoto, L Santi, L Sartori, K Sato, V Saveliev, A Savoy-Navarro, P Schlabach, A Schmidt, EE Schmidt, MA Schmidt, MP Schmidt, M Schmitt, T Schwarz, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, L Sexton-Kennedy, F Sforza, A Sfyrla, SZ Shalhout, T Shears, PF Shepard, M Shimojima, S Shiraishi, M Shochet, Y Shon, I Shreyber, A Simonenko, P Sinervo, A Sisakyan, AJ Slaughter, J Slaunwhite, K Sliwa, JR Smith, FD Snider, R Snihur, A Soha, S Somalwar, V Sorin, P Squillacioti, M Stanitzki, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, GL Strycker, JS Suh, A Sukhanov, I Suslov, A Taffard, R Takashima, Y Takeuchi, R Tanaka, J Tang, M Tecchio, PK Teng, J Thom, J Thome, GA Thompson, E Thomson, P Tipton, P Ttito-Guzmán, S Tkaczyk, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, S-Y Tsai, Y Tu, N Turini, F Ukegawa, S Uozumi, N van Remortel, A Varganov, E Vataga, F Vázquez, G Velev, C Vellidis, M Vidal, I Vila, R Vilar, M Vogel, I Volobouev, G Volpi, P Wagner, RG Wagner, RL Wagner, W Wagner, J Wagner-Kuhr, T Wakisaka, R Wallny, SM Wang, A Warburton, D Waters, M Weinberger, J Weinelt, WC Wester, B Whitehouse, D Whiteson, AB Wicklund, E Wicklund, S Wilbur, G Williams, HH Williams, P Wilson, BL Winer, P Wittich, S Wolbers, C Wolfe, H Wolfe, T Wright, X Wu, F Würthwein, A Yagil, K Yamamoto, J Yamaoka, UK Yang, YC Yang, WM Yao, GP Yeh, K Yi, J Yoh, K Yorita, T Yoshida, GB Yu, I Yu, SS Yu, JC Yun, A Zanetti, Y Zeng, X Zhang, Y Zheng, S Zucchelli, CDF Collaboration

Abstract:

We report measurements of the polarization of W bosons from top-quark decays using 2.7 fb{-1} of pp collisions collected by the CDF II detector. Assuming a top-quark mass of 175 GeV/c{2}, three measurements are performed. A simultaneous measurement of the fraction of longitudinal (f{0}) and right-handed (f{+}) W bosons yields the model-independent results f{0}=0.88±0.11(stat)±0.06(syst) and f{+}=-0.15±0.07(stat)±0.06(syst) with a correlation coefficient of -0.59. A measurement of f{0} [f{+}] constraining f{+} [f{0}] to its standard model value of 0.0 [0.7] yields f{0}=0.70±0.07(stat)±0.04(syst) [f{+}=-0.01±0.02(stat)±0.05(syst)]. All these results are consistent with standard model expectations. We achieve the single most precise measurements of f{0} for both the model-independent and model-dependent determinations.

More details from the publisher

Combined Tevatron upper limit on gg→H→W⁺W^- and constraints on the Higgs boson mass in fourth-generation fermion models

Physical Review D - Particles, Fields, Gravitation and Cosmology 82:1 (2010)

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 Álvarez 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 Åsman, 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, AF Barfuss, P Baringer, VE Barnes, BA Barnett, J Barreto, P Barria, JF Bartlett, P Bartos, U Bassler, G Bauer, S Beale, A Bean, PH 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

Abstract:

We combine results from searches by the CDF and D0 collaborations for a standard model Higgs boson (H) in the process gg→H→W+W - in pp̄ collisions at the Fermilab Tevatron Collider at √s=1.96TeV. With 4.8fb-1 of integrated luminosity analyzed at CDF and 5.4fb-1 at D0, the 95% confidence level upper limit on σ(gg→H)×B(H→W+W-) is 1.75 pb at mH=120GeV, 0.38 pb at mH=165GeV, and 0.83 pb at mH=200GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, we exclude at the 95% confidence level a standard-model-like Higgs boson with a mass between 131 and 204 GeV. © 2010 The American Physical Society.

More details from the publisher

More details

Details from ArXiV

Sneha Malde

Sub department

Search for the production of scalar bottom quarks in pp̄ collisions at √s=1.96TeV

Authors:

Abstract:

Prompt K_short production in pp collisions at sqrt(s)=0.9 TeV

Authors:

Abstract:

Search for new color-octet vector particle decaying to tT{topbar} in pP{topbar} collisions at √s=1.96 TeV

Authors:

Abstract:

Measurement of W-boson polarization in Top-Quark Decay in pp collisions at sqrt[s]=1.96 TeV.

Authors:

Abstract:

Combined Tevatron upper limit on gg→H→W⁺W^- and constraints on the Higgs boson mass in fourth-generation fermion models

Authors:

Abstract:

FIND US

CONTACT US

Sneha Malde

Sub department

Research groups

Search for the production of scalar bottom quarks in pp̄ collisions at √s=1.96TeV

Authors:

Abstract:

Prompt K_short production in pp collisions at sqrt(s)=0.9 TeV

Authors:

Abstract:

Search for new color-octet vector particle decaying to tT{topbar} in pP{topbar} collisions at √s=1.96 TeV

Authors:

Abstract:

Measurement of W-boson polarization in Top-Quark Decay in pp collisions at sqrt[s]=1.96 TeV.

Authors:

Abstract:

Combined Tevatron upper limit on gg→H→W+W- and constraints on the Higgs boson mass in fourth-generation fermion models

Authors:

Abstract:

Combined Tevatron upper limit on gg→H→W⁺W^- and constraints on the Higgs boson mass in fourth-generation fermion models