AION/Magis

Research group

Research theme

Sub department

About

Measurement of Wgamma and Zgamma production in pp collisions at square root s=1.96 TeV.

Phys Rev Lett 94:4 (2005) 041803

Authors:

D Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, T Arisawa, J-F Arguin, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, GJ Barker, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, E Ben-Haim, 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, PSL Booth, D Bortoletto, J Boudreau, S Bourov, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, A Canepa, M Casarsa, D Carlsmith, S Carron, R Carosi, M Cavalli-Sforza, A Castro, P Catastini, D Cauz, A Cerri, C Cerri, L Cerrito, J Chapman, C Chen, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, ML Chu, S Chuang, JY Chung, W-H Chung, YS Chung, CI Ciobanu, MA Ciocci, AG Clark, D Clark, M Coca, A Connolly, M Convery, J Conway, B Cooper, M Cordelli, G Cortiana, J Cranshaw, J Cuevas, R Culbertson, C Currat, D Cyr, D Dagenhart, S Da Ronco, S D'Auria, P de Barbaro, S De Cecco, G De Lentdecker, S Dell'Agnello, M Dell'Orso, S Demers, L Demortier, M Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, P Doksus, A Dominguez, S Donati, M Donega, J Donini, M D'Onofrio, T Dorigo, V Drollinger, K Ebina, N Eddy, R Ely, R Erbacher, M Erdmann, D Errede, S Errede, R Eusebi, H-C Fang, S Farrington, I Fedorko, RG Feild, M Feindt, JP Fernandez, C Ferretti, RD Field, I Fiori, G Flanagan, B Flaugher, LR Flores-Castillo, A Foland, S Forrester, GW Foster, M Franklin, JC Freeman, H Frisch, Y Fujii, I Furic, A Gajjar, A Gallas, J Galyardt, M Gallinaro, M Garcia-Sciveres, AF Garfinkel, C Gay, H Gerberich, DW Gerdes, E Gerchtein, S Giagu, P Giannetti, A Gibson, K Gibson, C Ginsburg, K Giolo, M Giordani, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, D Goldstein, J Goldstein, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, AT Goshaw, Y Gotra, K Goulianos, A Gresele, M Griffiths, C Grosso-Pilcher, U Grundler, M Guenther, J Guimaraes da Costa, C Haber, K Hahn, SR Hahn, E Halkiadakis, A Hamilton, R Handler, F Happacher, K Hara, M Hare, RF Harr, RM Harris, F Hartmann, K Hatakeyama, J Hauser, C Hays, H Hayward, E Heider, B Heinemann, J Heinrich, M Hennecke, M Herndon, C Hill, D Hirschbuehl, A Hocker, KD Hoffman, A Holloway, S Hou, MA Houlden, BT Huffman, Y Huang, RE Hughes, J Huston, K Ikado, J Incandela, G Introzzi, M Iori, Y Ishizawa, C Issever, A Ivanov, Y Iwata, B Iyutin, E James, D Jang, J Jarrell, D Jeans, H Jensen, EJ Jeon, M Jones, KK joo, S Jun, T Junk, T Kamon, J Kang, M Karagoz Unel, PE Karchin, S Kartal, Y Kato, Y Kemp, R Kephart, U Kerzel, V Khotilovich, B Kilminster, DH Kim, HS Kim, JE Kim, MJ Kim, MS Kim, SB Kim, SH Kim, TH Kim, YK Kim, BT King, M Kirby, L Kirsch, S Klimenko, B Knuteson, BR Ko, H Kobayashi, P Koehn, DJ Kong, K Kondo, J Konigsberg, K Kordas, A Korn, A Korytov, K Kotelnikov, AV Kotwal, A Kovalev, J Kraus, I Kravchenko, A Kreymer, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, N Kuznetsova, AT Laasanen, S Lai, S Lami, S Lammel, J Lancaster, M Lancaster, R Lander, K Lannon, A Lath, G Latino, R Lauhakangas, I Lazzizzera, Y Le, C Lecci, T LeCompte, J Lee, J Lee, SW Lee, R Lefevre, N Leonardo, S Leone, JD Lewis, K Li, C Lin, CS Lin, M Lindgren, TM Liss, DO Litvintsev, T Liu, Y Liu, NS Lockyer, A Loginov, M Loreti, P Loverre, R-S Lu, D Lucchesi, P Lujan, P Lukens, G Lungu, L Lyons, J Lys, R Lysak, D MacQueen, R Madrak, K Maeshima, P Maksimovic, L Malferrari, G Manca, R Marginean, M Martin, A Martin, V Martin, M Martínez, T Maruyama, H Matsunaga, M Mattson, P Mazzanti, KS McFarland, D McGivern, PM McIntyre, P McNamara, R NcNulty, S Menzemer, A Menzione, P Merkel, C Mesropian, A Messina, T Miao, N Miladinovic, L Miller, R Miller, JS Miller, R Miquel, S Miscetti, G Mitselmakher, A Miyamoto, Y Miyazaki, N Moggi, B Mohr, R Moore, M Morello, A Mukherjee, M Mulhearn, T Muller, R Mumford, A Munar, P Murat, J Nachtman, S Nahn, I Nakamura, I Nakano, A Napier, R Napora, D Naumov, V Necula, F Niell, J Nielsen, C Nelson, T Nelson, C Neu, MS Neubauer, C Newman-Holmes, A-S Nicollerat, T Nigmanov, L Nodulman, O Norniella, K Oesterberg, T Ogawa, SH Oh, YD Oh, T Ohsugi, T Okusawa, R Oldeman, R Orava, W Orejudos, C Pagliarone, F Palmonari, R Paoletti, V Papadimitriou, S Pashapour, J Patrick, G Pauletta, M Paulini, T Pauly, C Paus, D Pellett, A Penzo, TJ Phillips, G Piacentino, J Piedra, KT Pitts, C Plager, A Pompos, L Pondrom, G Pope, O Poukhov, F Prakoshyn, T Pratt, A Pronko, J Proudfoot, F Ptohos, G Punzi, J Rademacker, A Rakitine, S Rappoccio, F Ratnikov, H Ray, A Reichold, B Reisert, V Rekovic, P Renton, M Rescigno, F Rimondi, K Rinnert, L Ristori, WJ Robertson, A Robson, T Rodrigo, S Rolli, L Rosenson, R Roser, R Rossin, C Rott, J Russ, A Ruiz, D Ryan, H Saarikko, S Sabik, A Safonov, R St Denis, WK Sakumoto, G Salamanna, D Saltzberg, C Sanchez, A Sansoni, L Santi, S Sarkar, K Sato, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, F Semeria, L Sexton-Kennedy, I Sfiligoi, MD Shapiro, T Shears, PF Shepard, M Shimojima, M Shochet, Y Shon, I Shreyber, A Sidoti, J Siegrist, M Siket, A Sill, P Sinervo, A Sisakyan, A Skiba, AJ Slaughter, K Sliwa, D Smirnov, JR Smith, FD Snider, R Snihur, SV Somalwar, J Spalding, M Spezziga, L Spiegel, F Spinella, M Spiropulu, P Squillacioti, H Stadie, A Stefanini, B Stelzer, O Stelzer-Chilton, J Strologas, D Stuart, A Sukhanov, K Sumorok, H Sun, T Suzuki, A Taffard, R Tafirout, SF Takach, H Takano, R Takashima, Y Takeuchi, K Takikawa, M Tanaka, R Tanaka, N Tanimoto, S Tapprogge, M Tecchio, PK Teng, K Terashi, RJ Tesarek, S Tether, J Thom, AS Thompson, E Thomson, P Tipton, V Tiwari, S Tkaczyk, D Toback, K Tollefson, T Tomura, D Tonelli, M Tönnesmann, S Torre, D Torretta, S Tourneur, W Trischuk, J Tseng, R Tsuchiya, S Tsuno, D Tsybychev, N Turini, M Turner, F Ukegawa, T Unverhau, S Uozumi, D Usynin, L Vacavant, A Vaiciulis, A Varganov, E Vataga, S Vejcik Iii, G Velev, V Veszpremi, G Veramendi, T Vickey, R Vidal, I Vila, R Vilar, I Vollrath, I Volobouev, M von der Mey, P Wagner, RG Wagner, RL Wagner, W Wagner, R Wallny, T Walter, T Yamashita, K Yamamoto, Z Wan, MJ Wang, SM Wang, A Warburton, B Ward, S Waschke, D Waters, T Watts, M Weber, WC Wester Iii, B Whitehouse, AB Wicklund, E Wicklund, HH Williams, P Wilson, BL Winer, P Wittich, S Wolbers, M Wolter, M Worcester, S Worm, T Wright, X Wu, F Würthwein, A Wyatt, A Yagil, UK Yang, W Yao, GP Yeh, K Yi, J Yoh, P Yoon, K Yorita, T Yoshida, I Yu, S Yu, Z Yu, JC Yun, L Zanello, A Zanetti, I Zaw, F Zetti, J Zhou, A Zsenei, S Zucchelli, CDF Collaboration

Abstract:

The standard model predictions for Wgamma and Zgamma production are tested using an integrated luminosity of 200 pb(-1) of pp collision data collected at the Collider Detector at Fermilab. The cross sections are measured by selecting leptonic decays of the W and Z bosons, and photons with transverse energy ET>7 GeV that are well separated from leptons. The production cross sections and kinematic distributions for the Wgamma and Zgamma data are compared to SM predictions.

Measurement of the Moments of the Hadronic Invariant Mass Distribution in Semileptonic B Decays

ArXiv hep-ex/0502003 (2005)

Authors:

CDF Collaboration, D Acosta

Comparison of three-jet events in pp̄ collisions at √s = 1.8 TeV to predictions from a next-to-leading order QCD calculation

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005) 032002-1-032002-12

Authors:

DE Acosta, T Affolder, MG Albrow, DJ Ambrose, D Amidei, K Anikeev, J Antoš, G Apollinari, T Arisawa, AM Artikov, WJ Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, WF Badgett, AA Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, JN Bellinger, DP Benjamin, A Beretvas, AA Bhatti, ME Binkley, DB Bisello, MR Bishai, RE Blair, CA Blocker, K Bloom, BJ Blumenfeld, A Bocci, A Bodek, G Bolla, AA Bolshov, D Bortoletto, JF Boudreau, CM Bromberg, EM Brubaker, JA Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, MK Campbell, WC Carithers, D Carlsmith, AJ Castro, D Cauz, A Cerri, L Cerrito, JW Chapman, C Chen, Y Chen, MB Chertok, G Chiarelli, GA Chlachidze, FS Chlebana, M Chu, J Chung, WH Chung, Y Chung, CI Ciobanu, AG Clark, MN Coca, A Connolly, ME Convery, JS Conway, M Cordelli, J Cranshaw, RL Culbertson, DW Dagenhart, S D'Auria, P De Barbaro, SD De Cecco, S Dell'Agnello, M Dell'Orso, SM Demers, L Demortier, MM Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, A Domínguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, RD Erbacher, D Errede, SM Errede, R Eusebi, SM Farrington, RG Feild, JP Fernández, C Ferretti, RD Field, I Fiori, BL Flaugher, LR Flores-Castillo, GW Foster, MEB Franklin, JI Friedman, IK Furić, M Gallinaro, AF Garfinkel, C Gay, DW Gerdes, E Gerstein, S Giagu, P Giannetti, K Giolo, MP Giordani, P Giromini, VV Glagolev, DA Glenzinskí, MS Gold, N Goldschmidt, J Goldstein, G Gómez, MV Goncharov, IV Gorelov, AT Goshaw, YN Gotra, K Goulianos, A Gresele, C Grosso-Pilcher, M Guenther, JB Guimarães Da Costa, CH Haber, SR Hahn, E Halkiadakis, R Handler, F Happacher, K Hara, RM Harris, FX Hartmann, K Hatakeyama, J Hauser, JG Heinrich, M Hennecke, M Herndon, CS Hill, A Höcker, KD Hoffman, S Hou, BT Huffman, RE Hughes, JW Huston, JR Incandela, G Introzzi, M Iori, C Ìşsever, A Ivanov, Y Iwata, B Iyutin, EB James, MK Jones, T Kamon, J Kang, MK Ünel, SN Kartal, H Kasha, Y Kato, RD Kennedy, RD Kephart, BJ Kilminster, DH Kim, H Kim, M Kim, SB Kim, S Kim, T Kim, Y Kim, MH Kirby, LE Kirsch, S Klimenko, P Koehn, K Kondo, J Königsberg, A Korn, AV Korytov, J Kroll, MC Kruse, V Krutelyov, SE Kuhlmann, N Kuznetsova, AT Laasanen, SS Lami, S Lammel, JM Lancaster, MA Lancaster, RL Lander, K Lannon, A Lath, G Latino, TJ LeCompte, Y Le, J Lee, S Lee, NT Leonardo, S Leone, JD Lewis, K Li, CSS Lin, MA Lindgren, TM Liss, DO Litvintsev, T Liu, NS Lockyer, AY Loginov, M Loreti, D Lucchesi, PT Lukens, LPR Lyons, JEA Lys, RL Madrak, K Maeshima, P Maksimović, L Malferrari, G Manca, ML Mangano, M Maríotti, AJ Martin, MS Martin, VJ Martin, MI Martínez, P Mazzanti, KS McFarland, PM McIntyre, M Menguzzato, A Menzione, P Merkel, C Mesropian, AB Meyer, T Miao, JS Miller, RJD Miller, S Miscetti, GV Mitselmakher, N Moggi, RW Moore, TK Moulik, A Mukherjee, M Mulhearn, TA Müller, A Munar, PA Murat, JM Nachtman, S Nahn, I Nakano, R Napora, CA Nelson, TK Nelson, C Neu, MS Neubauer, CB Newman-Holmes, F Niell, TS Nigmanov, LJ Nodulman, SH Oh, Y Oh, T Ohsugi, T Okusawa, W Orejudos, CE Pagliarone, FM Palmonari, R Paoletti, VK Papadimitriou, JF Patrick, G Pauletta, MG Paulini, T Pauly, C Paus, DE Pellett, A Penzo, TJ Phillips, GM Piacentino, J Piedra, KT Pitts, A Pompoš, LG Pondrom, G Pope, O Poukhov, T Pratt, FV Prokoshin, J Proudfoot, F Ptohos, G Punzi, JH Rademacker, A Rakitine, FD Ratnikov, H Ray, AJH Reichold, PB Renton, M Rescigno, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, S Rolli, L Rosenson, RM Roser, R Rossin, C Rott, AS Roy, A Ruiz-Jimeno, DT Ryan, AN Safonov, RDS St Denis, WK Sakumoto, DP Saltzberg, CAS Sánchez, A Sansoni, L Santi, S Sarkar, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, A Sedov, SC Seidel, Y Seiya, AA Semenov, F Semeria, MD Shapiro, PF Shepard, T Shibayama, M Shimojima, MJ Shochet, A Sidoti, AF Sill, PK Sinervo, AJ Slaughter, K Śliwa, FD Snider, R Snihur, MA Spezziga, L Spiegel, F Spinella, M Spiropulu, AAM Stefanini, J Strologas, DD Stuart, AI Sukhanov, KCTO Sumorok, T Suzuki, R Takashima, K Takikawa, M Tanaka, M Tecchio, P Teng, K Terashi, RJ Tesarek, S Tether, JJ Thorn, TLT Thomas, AS Thompson, EJ Thomson, PL Tipton, SM Tkaczyk, D Toback, K Tollefson, D Tonelli, M Tönnesmann, H Toyoda, W Trischuk, J Tseng, D Tsybychev, N Turini, F Ukegawa, T Unverhau, T Vaiciulis, AV Varganov, ES Vataga, S Vejcik, GV Velev, G Veramendi, RA Vidal, I Vila, R Vilar, I Volobouev, M Von Der Mey, RG Wagner, RL Wagner, W Wagner, Z Wan, C Wang, M Wang, S Wang, BR Ward, S Waschke, DS Waters, TL Watts, MS Weber, WC Wester, B Whitehouse, AB Wicklund, EJ Wicklund, HH Williams, PJ Wilson, BL Winer, SA Wolbers, MW Wolter, SD Worm, X Wu, F Würthwein, U Yang, W Yao, GP Yeh, K Yi, J Yoh, T Yoshida, I Yu, S Yu, JC Yun, L Zanello, AM Zanetti, F Zetti, S Zucchelli

Abstract:

The properties of three-jet events with total transverse energy greater than 320 GeV and individual jet energy greater than 20 GeV have been analyzed and compared to absolute predictions from a next-to-leading order (NLO) perturbative QCD calculation. These data, of integrated luminosity 86 pb -1, were recorded by the CDF Experiment for pp collisions at √s = 1.8 TeV This study tests a model of higher order QCD processes that result in gluon emission and may give some indication of the magnitude of the contribution of processes higher than NLO. The total cross section is measured to be 466 ± 3(stat.)-70 +207(syst.) pb. The differential cross section is furthermore measured for all kinematically accessible regions of the Dalitz plane, including those for which the theoretical prediction is unreliable. While the measured cross section is consistent with the theoretical prediction in magnitude, the two differ somewhat in shape in the Dalitz plane. © 2005 The American Physical Society.

Measurement of the J/ψ meson and b-hadron production cross sections in pp̄ collisions at √s = 1960 GeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005) 032001-1-032001-26

Authors:

DE Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, DJ Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antoš, M Aoki, G Apollinari, T Arisawa, JF Arguin, AM Artikov, WJ Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, WF Badgett, AA Barbaro-Galtieri, GJ Barker, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, JN Bellinger, E Ben-Haim, DP Benjamin, A Beretvas, AA Bhatti, ME Binkley, DB Bisello, MR Bishai, RE Blair, CA Blocker, K Bloom, BJ Blumenfeld, A Bocci, A Bodek, G Bolla, AA Bolshov, PSL Boóth, D Bortoletto, JF Boudreau, S Bourov, BP Brau, CM Bromberg, EM Brubaker, JA Budagov, HS Budd, K Burkett, G Busetto, PJ Bussey, KL Byrum, S Cabrera, M Campanelli, MK Campbell, A Canepa, M Casarsa, D Carlsmith, S Carron, R Carosi, MC Cavalli-Sforza, AJ Castro, PL Catastini, D Cauz, A Cerri, L Cerrito, JW Chapman, C Chen, Y Chen, MB Chertok, G Chiarelli, GA Chlachidze, FS Chlebana, L Cho, K Cho, D Chokheli, J Chou, M Chu, SHS Chuang, J Chung, WH Chung, Y Chung, CI Ciobanu, MA Ciocci, AG Clark, DE Clark, MN Coca, A Connolly, ME Convery, JS Conway, BD Cooper, M Cordelli, G Cortiana, J Cranshaw, J Cuevas, RL Culbertson, CA Currat, D Cyr, DW Dagenhart, S Da Ronco, S D'Auria, P De Barbaro, SD De Cecco, G De Lentdecker, S Dell'Agnello, M Dell'Orso, SM Demers, L Demortier, MM Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, C Dörr, P Doksus, A Domínguez, S Donati, M Donegà, J Donini, M D'Onofrio, T Dorigo, DrollingerV, K Ebina, N Eddy, JE Ehlers, RP Ely, RD Erbacher, M Erdmann, D Errede, SM Errede, R Eusebi, H Fang, SM Farrington, I Fedorko, WT Fedorko, RG Feild, M Feindt, JP Fernández, C Ferretti, RD Field, GP Flanagan, BL Flaugher, LR Flores-Castillo, AD Foland, S Forrester, GW Foster, MEB Franklin, JC Freeman, Y Fujii, IK Furić, A Gajjar, AA Gallas, J Galyardt, M Gallinaro, M Garcia-Sciveres, AF Garfinkel, C Gay, HK Gerberich, DW Gerdes, EA Gerchtein, S Giagu, P Giannetti, AJ Gibson, KR Gibson, C Ginsburg, K Giolo, MP Giordani, M Giunta, GA Giurgiu, VV Glagolev, DA Glenzinskí, MS Gold, N Goldschmidt, DJ Goldstein, J Goldstein, G Gómez, G Gómez-Ceballos, MV Goncharov, O González, IV Gorelov, AT Goshaw, YN Gotra, K Goulianos, A Gresele, M Griffiths, C Grosso-Pilcher, U Grundler, M Guenther, JB Guimarães Da Costa, V Haber, K Hahn, SR Hahn, E Halkiadakis, A Hamilton, B Han, R Handler, F Happacher, K Hara, MF Hare, RF Harr, RM Harris, FX Hartmann, K Hatakeyama, J Hauser, CP Hays, HaywardH, EM Heider, B Heinemann, JG Heinrich, M Hennecke, M Herndon, CS Hill, D Hirschbuehl, A Höcker, D HoffmanK, A Holloway, S Hou, MA Houlden, BT Huffman, Y Huang, RE Hughes, JW Huston, K Ikado, JR Incandela, G Introzzi, M Iori, Y Ishizawa, C Ìşsever, A Ivanov, Y Iwata, B Iyutin, EB James, D Jang, J Jarrell, DT Jeans, HB Jensen, E Jeon, MK Jones, K Joo, S Jun, TR Junk, T Kamon, J Kang, MK Ünel, PE Karchin, SN Kartal, Y Kato, Y Kemp, RD Kephart, U Kerzel, V Khotilovich, BJ Kilminster, DH Kim, H Kim, J Kim, M Kim, M Kim, SB Kim, S Kim, T Kim, Y Kim, BT King, MH Kirby, LE Kirsch, S Klimenko, B Knuteson, B Ko, H Kobayashi, P Koehn, D Kong, K Kondo, J Königsberg, K Kordas, A Korn, AV Korytov, KA Kotelnikov, AV Kotwal, AI Kovalev, JA Kraus, IT Kravchenko, AE Kreymer, J Kroll, MC Kruse, V Krutelyov, SE Kuhlmann, S Kwang, AT Laasanen, S Lai, SS Lami, S Lammel, JM Lancaster, MA Lancaster, RL Lander, K Lannon, A Lath, G Latino, RTA Lauhakangas, I Lazzizzera, Y Le, C Lecci, TJ LeCompte, J Lee, J Lee, S Lee, RP Lefèvre, NT Leonardo, S Leone, SL Levy, JD Lewis, K Li, CS Lin, CSS Lin, MA Lindgren, TM Liss, A Lister, DO Litvintsev, T Liu, Y Liu, NS Lockyer, AY Loginov, M Loreti, PF Loverre, R Lu, D Lucchesi, PJ Lujan, PT Lukens, GA Lungu, LPR Lyons, JEA Lys, R Lysak, DM MacQueen, RL Madrak, K Maeshima, P Maksimović, L Malferrari, G Manca, RM Mǎrginean, C Marino, AJ Martin, MS Martin, VJ Martin, MI Martínez, T Maruyama, H Matsunaga, M Mattson, P Mazzanti, KS McFarland, D McGivern, PM McIntyre, PA McNamara, R NcNulty, A Mehta, S Menzemer, A Menzione, P Merkel, C Mesropian, AM Messina, T Miao, N Miladinovic, LM Miller, RJD Miller, JS Miller, R Miquel, S Miscetti, GV Mitselmakher, A Miyamoto, Y Miyazaki, N Moggi, B Mohr, RW Moore, MJ Morello, PAM Fernández, A Mukherjee, M Mulhearn, TA Müller, R Mumford, A Munar, PA Murat, JM Nachtman, S Nahn, I Nakamura, I Nakano, A Napier, R Napora, DV Naumov, V Necula, F Niell, JA Nielsen, CA Nelson, TK Nelson, C Neu, MS Neubauer, CB Newman-Holmes, TS Nigmanov, LJ Nodulman, O Norniella, K Oesterberg, T Ogawa, SH Oh, Y Oh, T Ohsugi, T Okusawa, RGC Oldeman, R Orava, W Orejudos, CE Pagliarone, E Palencia, R Paoletti, VK Papadimitriou, S Pashapour, JF Patrick, G Pauletta, MG Paulini, T Pauly, C Paus, DE Pellett, A Penzo, TJ Phillips, GM Piacentino, J Piedra, KT Pitts, CL Plager, A Pompoš, LG Pondrom, G Pope, X Portell, O Poukhov, F Prakoshyn, T Pratt, A Pronko, J Proudfoot, F Ptohos, G Punzi, JH Rademacker, MA Rahaman, A Rakitine, S Rappoccio, FD Ratnikov, H Ray, B Reisert, V Rekovic, PB Renton, M Rescigno, F Rimondi, K Rinnert, L Ristori, WJ Robertson, A Robson, T Rodrigo, S Rolli, L Rosenson, RM Roser, R Rossin, C Rott, JS Russ, VL Rusu, A Ruiz-Jimeno, DT Ryan, HMT Saarikko, S Sabik, AN Safonov, RDS St Denis, WK Sakumoto, G Salamanna, DP Saltzberg, CAS Sánchez, A Sansoni, L Santi, S Sarkar, K Sato, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, F Scuri, A Sedov, SC Seidel, Y Seiya, F Semeria, L Sexton-Kennedy, I Sfiligoi, MD Shapiro, TG Shears, PF Shepard, D Sherman, M Shimojima, MJ Shochet, Y Shon, I Shreyber, A Sidoti, JL Siegrist, M Šiket, AF Sill, PK Sinervo, AN Sisakyan, A Skiba, AJ Slaughter, K Śliwa, DV Smirnov, JRH Smith, FD Snider, R Snihur, A Soha, SV Somalwar, J Spalding, MA Spezziga, L Spiegel, F Spinella, M Spiropulu, P Squillacioti, H Stadie, B Stelzer, O Stelzer-Chilton, J Strologas, DD Stuart, AI Sukhanov, KCTO Sumorok, H Sun, T Suzuki, AC Taffard, R Tafirout, SF Takach, H Takano, R Takashima, Y Takeuchi, K Takikawa, M Tanaka, R Tanaka, N Tanimoto, S Tapprogge, M Tecchio, P Teng, K Terashi, RJ Tesarek, S Tether, J Thom, AS Thompson, EJ Thomson, PL Tipton, V Tiwari, SM Tkaczyk, D Toback, K Tollefson, T Tomura, D Tonelli, M Tönnesmann, SD Torre, D Torretta, S Tourneur, W Trischuk, J Tseng, R Tsuchiya, S Tsuno, D Tsybychev, N Turini, MF Turner, F Ukegawa, T Unverhau, S Uozumi, D Usynin, L Vacavant, A Vaiciulis, AV Varganov, ES Vataga, S Vejcik, GV Velev, V Veszprémi, G Veramendi, T Vickey, RA Vidal, I Vila, R Vilar, I Vollrath, I Volobouev, M Von Der Mey, PD Wágner, RG Wagner, RL Wagner, W Wagner, RS Wallny, T Walter, T Yamashita, K Yamamoto, Z Wan, M Wang, S Wang, A Warburton, BR Ward, S Waschke, DS Waters, TL Watts, MS Weber, WC Wester, B Whitehouse, AB Wicklund, EJ Wicklund, HH Williams, PJ Wilson, BL Winer, P Wittich, SA Wolbers, CE Wolfe, MW Wolter, M Worcester, SD Worm, TR Wright, X Wu, F Würthwein, AC Wyatt, A Yagil, C Yang, U Yang, W Yao, GP Yeh, K Yi, J Yoh, PS Yoon, K Yorita, T Yoshida, I Yu, S Yu, Z Yu, JC Yun, L Zanello, AM Zanetti, I Zaw, F Zetti, J Zhou, A Žsenei, S Zucchelli

Abstract:

We present a new measurement of the inclusive and differential production cross sections of J/ψ mesons and b hadrons in proton-antiproton collisions at √s = 1960 GeV. The data correspond to an integrated luminosity of 39.7 pb-1 collected by the CDF run II detector. We find the integrated cross section for inclusive J/ψ production for all transverse momenta from 0 to 20 GeV/c in the rapidity range |y| < 0.6 to be 4.08 ± 0.02(Stat)-0.33 +0.36(syst) μb. We separate the fraction of J/ψ events from the decay of the long-lived b hadrons using the lifetime distribution in all events with pT(J/ψ) > 1.25 GeV/c. We find the total cross section for b hadrons, including both hadrons and antihadrons, decaying to J/ψ with transverse momenta greater than 1.25 GeV/c in the rapidity range |y(J/ψ)| < 0.6 is 0.330 ± 0.005(stat) -0.033 +0.036(syst) μb. Using a Monte Carlo simulation of the decay kinematics of b hadrons to all final states containing a J/ψ, we extract the first measurement of the total single b-hadron cross section down to zero transverse momentum at √s = 1960 GeV. We find the total single b-hadron cross section integrated over all transverse momenta for b hadrons in the rapidity range |y| < 0.6 to be 17.6 ± 0.4(stat) -2.3 +2.5(syst) μb. © 2005 The American Physical Society.

Measurement of the W boson polarization in top decay at CDF at √s = 1.8 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005) 031101-1-031101-7

Authors:

DE Acosta, T Affolder, MG Albrow, DJ Ambrose, D Amidei, K Anikeev, J Antoš, G Apollinari, T Arisawa, AM Artikov, WJ Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, WF Badgett, AA Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, JN Bellinger, DP Benjamin, A Beretvas, AA Bhatti, ME Binkley, DB Bisello, MR Bishai, RE Blair, CA Blocker, K Bloom, BJ Blumenfeld, A Bocci, A Bodek, G Bolla, AA Bolshov, D Bortoletto, JF Boudreau, CM Bromberg, EM Brubaker, JA Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, MK Campbell, WC Carithers, D Carlsmith, AJ Castro, D Cauz, A Cerri, L Cerrito, JW Chapman, C Chen, Y Chen, MB Chertok, G Chiarelli, GA Chlachidze, FS Chlebana, M Chu, J Chung, WH Chung, Y Chung, CI Ciobanu, AG Clark, MN Coca, A Connolly, ME Convery, JS Conway, M Cordelli, J Cranshaw, RL Culbertson, DW Dagenhart, S D'Auria, P De Barbaro, SD De Cecco, S Dell'Agnello, M Dell'Orso, SM Demers, L Demortier, MM Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, A Domínguez, S Donati, M D'Onofrio, T Dorigo, N Eddy, RD Erbacher, D Errede, SM Errede, R Eusebi, SM Farrington, RG Feild, JP Fernández, C Ferretti, RD Field, I Fiori, BL Flaugher, LR Flores-Castillo, GW Foster, MEB Franklin, JI Friedman, IK Furić, M Gallinaro, M Garcia-Sciveres, AF Garfinkel, C Gay, DW Gerdes, E Gerstein, S Giagu, P Giannetti, K Giolo, MP Giordani, P Giromini, VV Glagolev, DA Glenzinskí, MS Gold, N Goldschmidt, J Goldstein, G Gómez, MV Goncharov, IV Gorelov, AT Goshaw, YN Gotra, K Goulianos, A Gresele, C Grosso-Pilcher, M Guenther, JB Guimarães Da Costa, CH Haber, SR Hahn, E Halkiadakis, R Handler, F Happacher, K Hara, RM Harris, FX Hartmann, K Hatakeyama, J Hauser, JG Heinrich, M Hennecke, M Herndon, CS Hill, A Höcker, KD Hoffman, S Hou, BT Huffman, RE Hughes, JW Huston, JR Incandela, G Introzzi, M Iori, C Ìşsever, A Ivanov, Y Iwata, B Iyutin, EB James, MK Jones, T Kamon, J Kang, M Karagöz Ünel, SN Kartal, H Kasha, Y Kato, RD Kennedy, RD Kephart, BJ Kilminster, DH Kim, H Kim, M Kim, SB Kim, S Kim, T Kim, Y Kim, MH Kirby, LE Kirsch, S Klimenko, P Koehn, K Kondo, J Königsberg, A Korn, AV Korytov, J Kroll, MC Kruse, V Krutelyov, SE Kuhlmann, N Kuznetsova, AT Laasanen, SS Lami, S Lammel, JM Lancaster, MA Lancaster, RL Lander, K Lannon, A Lath, G Latino, TJ LeCompte, Y Le, J Lee, S Lee, NT Leonardo, S Leone, JD Lewis, K Li, CSS Lin, MA Lindgren, TM Liss, DO Litvintsev, T Liu, NS Lockyer, AY Loginov, M Loreti, D Lucchesi, PT Lukens, LPR Lyons, JEA Lys, RL Madrak, K Maeshima, P Maksimović, L Malferrari, G Manca, ML Mangano, M Maríotti, AJ Martin, MS Martin, VJ Martin, MI Martínez, P Mazzanti, KS McFarland, PM McIntyre, M Menguzzato, A Menzione, P Merkel, C Mesropian, AB Meyer, T Miao, JS Miller, RJD Miller, S Miscetti, GV Mitselmakher, N Moggi, RW Moore, TK Moulik, A Mukherjee, M Mulhearn, TA Müller, A Munar, PA Murat, JM Nachtman, S Nahn, I Nakano, R Napora, CA Nelson, TK Nelson, C Neu, MS Neubauer, CB Newman-Holmes, F Niell, TS Nigmanov, LJ Nodulman, SH Oh, Y Oh, T Ohsugi, T Okusawa, W Orejudos, CE Pagliarone, FM Palmonari, R Paoletti, VK Papadimitriou, JF Patrick, G Pauletta, MG Paulini, T Pauly, C Paus, DE Pellett, A Penzo, TJ Phillips, GM Piacentino, J Piedra, KT Pitts, A Pompoš, LG Pondrom, G Pope, O Poukhov, T Pratt, FV Prokoshin, J Proudfoot, F Ptohos, G Punzi, JH Rademacker, A Rakitine, FD Ratnikov, H Ray, AJH Reichold, PB Renton, M Rescigno, F Rimondi, L Ristori, WJ Robertson, T Rodrigo, S Rolli, L Rosenson, RM Roser, R Rossin, C Rott, AS Roy, A Ruiz-Jimeno, DT Ryan, AN Safonov, RDS St Denis, WK Sakumoto, DP Saltzberg, CAS Sánchez, A Sansoni, L Santi, S Sarkar, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, L Scodellaro, A Scribano, A Sedov, SC Seidel, Y Seiya, AA Semenov, F Semeria, MD Shapiro, PF Shepard, T Shibayama, M Shimojima, MJ Shochet, A Sidoti, AF Sill, PK Sinervo, AJ Slaughter, K Śliwa, FD Snider, R Snihur, MA Spezziga, L Spiegel, F Spinella, M Spiropulu, AAM Stefanini, J Strologas, DD Stuart, AI Sukhanov, KCTO Sumorok, T Suzuki, R Takashima, K Takikawa, M Tanaka, M Tecchio, P Teng, K Terashi, RJ Tesarek, S Tether, J Thom, AS Thompson, EJ Thomson, PL Tipton, SM Tkaczyk, D Toback, K Tollefson, D Tonelli, M Tönnesmann, H Toyoda, W Trischuk, J Tseng, D Tsybychev, N Turini, F Ukegawa, T Unverhau, T Vaiciulis, AV Varganov, ES Vataga, S Vejcik, GV Velev, G Veramendi, RA Vidal, I Vila, R Vilar, I Volobouev, M Von Der Mey, RG Wagner, RL Wagner, W Wagner, Z Wan, C Wang, M Wang, S Wang, BR Ward, S Waschke, DS Waters, TL Watts, MS Weber, WC Wester, B Whitehouse, AB Wicklund, EJ Wicklund, HH Williams, PJ Wilson, BL Winer, SA Wolbers, MW Wolter, SD Worm, X Wu, F Würthwein, U Yang, W Yao, GP Yeh, K Yi, J Yoh, T Yoshida, I Yu, S Yu, JC Yun, L Zanello, AM Zanetti, F Zetti, S Zucchelli

Abstract:

The polarization of the W boson in t →Wb decay is unambiguously predicted by the standard model of electroweak interactions and is a powerful test of our understanding of the tbW vertex. We measure this polarization from the invariant mass of the b quark from t → Wb and the lepton from W → lν whose momenta measure the W decay angle and direction of motion, respectively. In this paper we present a measurement of the decay rate (f V+A) of the W produced from the decay of the top quark in the hypothesis of V + A structure of the tWb vertex. We find no evidence for the nonstandard V + A vertex and set a limit on fV+A < 0.80 at 95% confidence level. By combining this result with a complementary observable in the same data, we assign a limit on fv+A < 0.61 at 95% CL. This corresponds to a constraint on the right-handed helicity component of the W polarization of f+ < 0.18 at 95% CL. This limit is the first significant direct constraint on fV+A in top decay. © 2005 The American Physical Society.