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Search for Λb0→pπ and Λb0→pK decays in pp¯ collisions at s=1.96 TeV

Physical Review D American Physical Society (APS) 72:5 (2005) 051104

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, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben-Haim, D Benjamin, A Beretvas, T Berry, 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, S Bourov, B Brau, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, M Casarsa, D Carlsmith, R Carosi, S Carron, M Cavalli-Sforza, A Castro, P Catastini, D Cauz, A Cerri, L Cerrito, J Chapman, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, JP Chou, S Chuang, K Chung, W-H Chung, YS Chung, M Ciljak, CI Ciobanu, MA Ciocci, AG Clark, D Clark, M Coca, A Connolly, M Convery, J Conway, B Cooper, K Copic, M Cordelli, G Cortiana, J Cranshaw, J Cuevas, A Cruz, R Culbertson, C Currat, D Cyr, D Dagenhart, S Da Ronco, S D’Auria, P de Barbaro, S De Cecco, A Deisher, G De Lentdecker, M Dell’Orso, S Demers, L Demortier, M Deninno, D De Pedis, PF Derwent, C Dionisi, JR Dittmann, P DiTuro, C Dörr, A Dominguez, S Donati, M Donega, J Donini, M D’Onofrio, T Dorigo, K Ebina, J Efron, J Ehlers, R Erbacher, M Erdmann, D Errede, S Errede, R Eusebi, H-C Fang, S Farrington, I Fedorko, WT Fedorko, RG Feild, M Feindt, JP Fernandez, RD Field, G Flanagan, LR Flores-Castillo, A Foland, S Forrester, GW Foster, M Franklin, JC Freeman, Y Fujii, I Furic, A Gajjar, M Gallinaro, J Galyardt, 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, M Giunta, 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, J Guimaraes da Costa, C Haber, K Hahn, SR Hahn, E Halkiadakis, A Hamilton, B-Y Han, R Handler, F Happacher, K Hara, M Hare, RF Harr, RM Harris, F Hartmann, K Hatakeyama, J Hauser, C Hays, H Hayward, 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, B Jayatilaka, D Jeans, H Jensen, EJ Jeon, M Jones, KK Joo, SY Jun, T Junk, T Kamon, J Kang, M Karagoz Unel, PE Karchin, 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, YK Kim, M Kirby, L Kirsch, S Klimenko, M Klute, B Knuteson, BR Ko, H Kobayashi, DJ Kong, K Kondo, J Konigsberg, K Kordas, A Korn, A Korytov, AV Kotwal, A Kovalev, J Kraus, I Kravchenko, A Kreymer, J Kroll, M Kruse, V Krutelyov, SE Kuhlmann, S Kwang, AT Laasanen, S Lai, S Lami, S Lammel, M Lancaster, R Lander, K Lannon, A Lath, G Latino, I Lazzizzera, C Lecci, T LeCompte, J Lee, J Lee, SW Lee, R Lefèvre, N Leonardo, S Leone, S Levy, JD Lewis, K Li, C Lin, CS Lin, M Lindgren, E Lipeles, TM Liss, A Lister, 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, E Lytken, D MacQueen, R Madrak, K Maeshima, P Maksimovic, G Manca, F Margaroli, R Marginean, C Marino, A Martin, M Martin, V Martin, M Martínez, T Maruyama, H Matsunaga, M Mattson, P Mazzanti, KS McFarland, D McGivern, PM McIntyre, P McNamara, R McNulty, A Mehta, S Menzemer, A Menzione, P Merkel, C Mesropian, A Messina, T Miao, N Miladinovic, J Miles, L Miller, R Miller, JS Miller, C Mills, R Miquel, S Miscetti, G Mitselmakher, A Miyamoto, N Moggi, B Mohr, R Moore, M Morello, PA Movilla Fernandez, J Muelmenstaedt, A Mukherjee, M Mulhearn, T Muller, R Mumford, A Munar, P Murat, J Nachtman, S Nahn, I Nakano, A Napier, R Napora, D Naumov, V Necula, T Nelson, C Neu, MS Neubauer, J Nielsen, T Nigmanov, L Nodulman, O Norniella, T Ogawa, SH Oh, YD Oh, T Ohsugi, T Okusawa, R Oldeman, R Orava, W Orejudos, K Osterberg, C Pagliarone, E Palencia, R Paoletti, V Papadimitriou, AA Paramonov, S Pashapour, J Patrick, G Pauletta, M Paulini, C Paus, D Pellett, A Penzo, TJ Phillips, G Piacentino, J Piedra, KT Pitts, C Plager, L Pondrom, G Pope, X Portell, O Poukhov, N Pounder, F Prakoshyn, A Pronko, J Proudfoot, F Ptohos, G Punzi, J Rademacker, MA Rahaman, A Rakitine, S Rappoccio, F Ratnikov, H Ray, B Reisert, V Rekovic, P Renton, M Rescigno, F Rimondi, K Rinnert, L Ristori, WJ Robertson, A Robson, T Rodrigo, S Rolli, R Roser, R Rossin, C Rott, J Russ, V Rusu, A Ruiz, D Ryan, H Saarikko, S Sabik, A Safonov, R St. Denis, WK Sakumoto, G Salamanna, D Saltzberg, C Sanchez, L Santi, S Sarkar, K Sato, P Savard, A Savoy-Navarro, P Schlabach, EE Schmidt, MP Schmidt, M Schmitt, T Schwarz, L Scodellaro, AL Scott, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, F Semeria, L Sexton-Kennedy, I Sfiligoi, MD Shapiro, T Shears, PF Shepard, D Sherman, M Shimojima, M Shochet, Y Shon, I Shreyber, A Sidoti, A Sill, P Sinervo, A Sisakyan, J Sjolin, A Skiba, AJ Slaughter, K Sliwa, D Smirnov, JR Smith, FD Snider, R Snihur, M Soderberg, A Soha, SV Somalwar, J Spalding, M Spezziga, F Spinella, P Squillacioti, H Stadie, M Stanitzki, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, D Stuart, JS Suh, A Sukhanov, K Sumorok, H Sun, T Suzuki, A Taffard, R Tafirout, H Takano, R Takashima, Y Takeuchi, K Takikawa, M Tanaka, R Tanaka, N Tanimoto, 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, R Tsuchiya, S Tsuno, D Tsybychev, N Turini, F Ukegawa, T Unverhau, S Uozumi, D Usynin, L Vacavant, A Vaiciulis, A Varganov, S Vejcik, 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, Z Wan, MJ Wang, SM Wang, A Warburton, B Ward, S Waschke, D Waters, T Watts, M Weber, WC Wester, B Whitehouse, D Whiteson, AB Wicklund, E Wicklund, HH Williams, P Wilson, BL Winer, P Wittich, S Wolbers, C Wolfe, M Wolter, M Worcester, S Worm, T Wright, X Wu, F Würthwein, A Wyatt, A Yagil, T Yamashita, K Yamamoto, J Yamaoka, C Yang, UK Yang, W Yao, GP Yeh, J Yoh, K Yorita, T Yoshida, I Yu, S Yu, JC Yun, L Zanello, A Zanetti, I Zaw, F Zetti, J Zhou, S Zucchelli
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Search for Λb0→pπ and Λb0→pK decays in pp̄ collisions at s=1.96 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 72:5 (2005)

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, JF 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, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben-Haim, D Benjamin, A Beretvas, T Berry, 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, S Bourov, B Brau, C Bromberg, E Brubaker, J Budagov, HS Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, M Casarsa, D Carlsmith, R Carosi, S Carron, M Cavalli-Sforza, A Castro, P Catastini, D Cauz, A Cerri, L Cerrito, J Chapman, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, JP Chou, S Chuang, K Chung, WH Chung, YS Chung, M Ciljak, CI Ciobanu, MA Ciocci, AG Clark, D Clark, M Coca, A Connolly

Abstract:

We report on a search for Λb0→pπ- and Λb0→pK- (and charge conjugate) decays in pp̄ collisions at s=1.96TeV using 193pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron Collider. Data were collected using a track trigger that has been optimized to select tracks belonging to a secondary vertex that is typical of two-body charmless decays of b-flavored hadrons, including Λb0 baryons. As no Λb0 signal was observed, we set the upper limits on the branching fraction B(Λb0→ph-), where h is K or π, of 2.3×10-5 at 90% C.L. and 2.9×10-5 at 95% C.L. © 2005 The American Physical Society.
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Observation of the hc(1P1) state of charmonium.

Physical review letters 95:10 (2005) 102003

Authors:

JL Rosner, NE Adam, JP Alexander, K Berkelman, DG Cassel, V Crede, JE Duboscq, KM Ecklund, R Ehrlich, L Fields, RS Galik, L Gibbons, B Gittelman, R Gray, SW Gray, DL Hartill, BK Heltsley, D Hertz, CD Jones, J Kandaswamy, DL Kreinick, VE Kuznetsov, H Mahlke-Krüger, TO Meyer, PUE Onyisi, JR Patterson, D Peterson, EA Phillips, J Pivarski, D Riley, A Ryd, AJ Sadoff, H Schwarthoff, X Shi, MR Shepherd, S Stroiney, WM Sun, D Urner, T Wilksen, KM Weaver, M Weinberger, SB Athar, P Avery, L Breva-Newell, R Patel, V Potlia, H Stoeck, J Yelton, P Rubin, C Cawlfield, BI Eisenstein, GD Gollin, I Karliner, D Kim, N Lowrey, P Naik, C Sedlack, M Selen, EJ White, J Williams, J Wiss, KW Edwards, D Besson, TK Pedlar, D Cronin-Hennessy, KY Gao, DT Gong, J Hietala, Y Kubota, T Klein, BW Lang, SZ Li, R Poling, AW Scott, A Smith, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, P Zweber, J Ernst, AH Mahmood, H Severini, DM Asner, SA Dytman, W Love, S Mehrabyan, JA Mueller, V Savinov, Z Li, A Lopez, H Mendez, J Ramirez, GS Huang, DH Miller, V Pavlunin, B Sanghi, IPJ Shipsey, GS Adams, M Cravey, JP Cummings, I Danko, J Napolitano, Q He, H Muramatsu, CS Park, W Park, EH Thorndike, TE Coan, YS Gao, F Liu, M Artuso, C Boulahouache, S Blusk, J Butt, O Dorjkhaidav, J Li, N Menaa, R Mountain, R Nandakumar, K Randrianarivony, R Redjimi, R Sia, T Skwarnicki, S Stone, JC Wang, K Zhang, SE Csorna, G Bonvicini, D Cinabro, M Dubrovin, RA Briere, GP Chen, J Chen, T Ferguson, G Tatishvili, H Vogel, ME Watkins, CLEO Collaboration

Abstract:

The h(c)((1)P(1)) state of charmonium has been observed in the reaction psi(2S) --> pi(0)h(c) --> (gammagamma)(gammaeta(c)) using 3.08 x10(6) psi(2S) decays recorded in the CLEO detector. Data have been analyzed both for the inclusive reaction, where the decay products of the eta(c) are not identified, and for exclusive reactions, in which eta(c) decays are reconstructed in seven hadronic decay channels. We find M(h(c)) = 3524.4 +/- 0.6 +/- 0.4 MeV which corresponds to a hyperfine splitting DeltaM(hf)(1P) triple-bond pi(0)h(c)) x B(h(c) --> gammaeta(c)) = (4.0 +/- 0.8 +/- 0.7) x 10(-4).
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Search for neutral MSSM Higgs bosons decaying to tau pairs in p-pbar collisions at sqrt(s)=1.96 TeV

ArXiv hep-ex/0508051 (2005)
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Search for Bs -> mu+mu- and Bd -> mu+mu- Decays in ppbar Collisions with CDF II

ArXiv hep-ex/0508036 (2005)
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