Guy Wilkinson: Publications

Search for the decay J/ψ → γ plus invisible

PHYSICAL REVIEW D 81:9 (2010) ARTN 091101

Authors:

J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, S Khalil, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, K Randrianarivony, J Reed, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, JM Hunt, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krueger, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, KY Gao, J Hietala, R Poling, P Zweber, S Dobbs, Z Metreveli, KK Seth, X Ting, A Tomaradze, S Brisbane, J Libby, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund

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Search for the rare decay B_s⁰ → μ⁺μ^-

PHYSICS LETTERS B 693:5 (2010) 539-544

Authors:

VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, GD Alexeev, G Alkhazov, A Alton, G Alverson, GA Alves, LS Ancu, M Aoki, Y Arnoud, M Arov, A Askew, B Asman, O Atramentov, C Avila, J BackusMayes, F Badaud, L Bagby, B Baldin, DV Bandurin, S Banerjee, E Barberis, A-F Barfuss, P Baringer, J Barreto, JF Bartlett, U Bassler, S Beale, A Bean, M Begalli, M Begel, C Belanger-Champagne, L Bellantoni, JA Benitez, SB Beria, G Bernardi, R Bernhard, I Bertram, M Besancon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, G Blazey, S Blessing, K Bloom, A Boehnlein, D Boline, TA Bolton, EE Boos, G Borissov, T Bose, A Brandt, O Brandt, R Brock, G Brooijmans, A Bross, D Brown, XB Bu, D Buchholz, M Buehler, V Buescher, V Bunichev, S Burdin, TH Burnett, CP Buszello, P Calfayan, B Calpas, S Calvet, E Camacho-Perez, J Cammin, MA Carrasco-Lizarraga, E Carrera, BCK Casey, H Castilla-Valdez, S Chakrabarti, D Chakraborty, KM Chan, A Chandra, G Chen, S Chevalier-Thery, DK Cho, SW Cho, S Choi, B Choudhary, T Christoudias, S Cihangir, D Claes, J Clutter, M Cooke, WE Cooper, M Corcoran, F Couderc, M-C Cousinou, A Croc, D Cutts, M Cwiok, A Das, G Davies, K De, SJ de Jong, E De La Cruz-Burelo, F Deliot, M Demarteau, R Demina, D Denisov, SP Denisov, S Desai, K DeVaughan, HT Diehl, M Diesburg, A Dominguez, T Dorland, A Dubey, LV Dudko, D Duggan, A Duperrin, S Dutt, A Dyshkant, M Eads, D Edmunds, J Ellison, VD Elvira, V Enari, S Eno, H Evans, A Evdokimov, VN Evdokimov, G Facini, AV Ferapontov, T Ferbel, F Fiedler, F Filthaut, W Fisher, HE Fisk, M Fortner, H Fox, S Fuess, T Gadfort, A Garcia-Bellido, V Gavrilov, P Gay, W Geist, W Geng, D Gerbaudo, CE Gerber, Y Gershtein, D Gillberg, G Ginther, G Golovanov, A Goussiou, PD Grannis, S Greder, H Greenlee, ZD Greenwood, EM Gregores, G Grenier, Ph Gris, J-F Grivaz, A Grohsjean, S Gruenendahl, MW Gruenewald, F Guo, J Guo, G Gutierrez, P Gutierrez, A Haas, R Haefner, S Hagopian, J Haley, L Hang, K Harder, A Harel, JM Hauptman, J Hays, T Hebbeker, D Hedin, AP Heinson, U Heintz, C Hensel, I Heredia-De la Cruz, K Herner, G Hesketh, MD Hildreth, R Hirosky, T Hoang, JD Hobbs, B Hoeneisen, M Hohlfeld, S Hossain, Y Hu, Z Hubacek, N Huske, V Hynek, I Iashvili, R Illingworth, AS Ito, S Jabeen, M Jaffre, S Jain, D Jamin, R Jesik, K Johns, M Johnson, D Johnston, A Jonckheere, P Jonsson, J Joshi, A Juste, K Kaadze, E Kajfas, D Karmanov, PA Kasper, TI Katsanos, R Kehoe, S Kermiche, N Khalatyan, A Khanov, A Kharchilava, YN Kharzheev, D Khatidze, MH Kirby, M Kirsch, JM Kohli, AV Kozelov, J Kraus, A Kumar, A Kupco, T Kurca, VA Kuzmin, J Kvita, S Lammers, G Landsberg, R Lebrun, HS Lee, WM Lee, J Lellouch, L Li, QZ Li, SM Lietti, JK Lim, D Lincoln, J Linnemann, VV Lipaev, R Lipton, Y Liu, Z Liu, A Lobodenko, M Lokajicek, P Love, HJ Lubatti, R Luna-Garcia, AL Lyon, AKA Maciel, D Mackin, R Madar, R Magana-Villalba, S Malik, VL Malyshev, Y Maravin, J Martinez-Ortega, R McCarthy, CL McGivern, MM Meijer, A Melnitchouk, D Menezes, PC Mercadante, M Merkin, A Meyer, J Meyer, NK Mondal, T Moulik, GS Muanza, M Mulhearn, E Nagy, M Naimuddin, M Narain, R Nayyar, HA Neal, JP Negret, P Neustroev, Fl Nilsen, SF Novaes, T Nunnemann, G Obrant, D Onoprienko, J Orduna, N Osman, J Osta, GJ Otero y Garzon, M Owen, M Padilla, M Pangilinan, N Parashar, V Parihar, SK Park, J Parsons, R Partridge, N Parua, A Patwa, B Penning, M Perfilov, K Peters, Y Peters, G Petrillo, P Petroff, R Piegaia, J Piper, M-A Pleier, PLM Podesta-Lerma, VM Podstavkov, M-E Pol, P Polozov, AV Popov, M Prewitt, D Price, S Protopopescu, J Qian, A Quadt, B Quinn, MS Rangel, K Ranjan, PN Ratoff, I Razumov, P Renkel, P Rich, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, M Rominsky, C Royon, R Rubinov, R Ruchti, G Safronov, G Sajot, A Sanchez-Hernandez, MP Sanders, B Sanghi, AS Santos, G Savage, L Sawyer, T Scanlon, D Schaile, RD Schamberger, Y Scheglov, H Schellman, T Schliephake, S Schlobohm, C Schwanenberger, R Schwienhorst, J Sekaric, H Severini, E Shabalina, V Shary, AA Shchukin, RK Shivpuri, V Simak, V Sirotenko, P Skubic, P Slattery, D Smirnov, GR Snow, J Snow, S Snyder, S Soeldner-Rembold, L Sonnenschein, A Sopczak, M Sosebee, K Soustruznik, B Spurlock, J Stark, V Stolin, DA Stoyanova, E Strauss, M Strauss, R Stroehmer, D Strom, L Stutte, P Svoisky, M Takahashi, A Tanasijczuk, W Taylor, B Tiller, M Titov, VV Tokmenin, D Tsybychev, B Tuchming, C Tully, PM Tuts, R Unalan, L Uvarov, S Uvarov, S Uzunyan, R Van Kooten, WM van Leeuwen, N Varelas, EW Varnes, IA Vasilyev, P Verdier, LS Vertogradov, M Verzocchi, M Vesterinen, D Vilanova, P Vint, P Vokac, HD Wahl, MHLS Wang, J Warchol, G Watts, M Wayne, G Weber, M Weber, M Wetstein, A White, D Wicke, MRJ Williams, GW Wilson, SJ Wimpenny, M Wobisch, DR Wood, TR Wyatt, Y Xie, C Xu, S Yacoob, R Yamada, W-C Yang, T Yasuda, YA Yatsunenko, Z Ye, H Yin, K Yip, HD Yoo, SW Youn, J Yu, S Zelitch, T Zhao, B Zhou, J Zhu, M Zielinski, D Zieminska, L Zivkovic

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Search for ψ(2S) → γηc(2S) via fully reconstructed ηc(2S) decays

PHYSICAL REVIEW D 81:5 (2010) ARTN 052002

Authors:

D Cronin-Hennessy, KY Gao, T Gong, J Hietala, Y Kubota, T Klein, R Poling, P Zweber, S Dobbs, Z Metreveli, KK Seth, BJY Tan, A Tomaradze, J Libby, L Martin, A Powell, C Thomas, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, Q He, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, M Artuso, S Blusk, S Khalil, R Mountain, K Randrianarivony, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, R Ehrlich, L Fields, RS Galik, L Gibbons, R Gray, SW Gray, DL Hartill, BK Heltsley, D Hertz, JM Hunt, J Kandaswamy, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krueger, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, T Wilksen, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, M Kornicer, RE Mitchell, MR Shepherd, C Tarbert, D Besson, TK Pedlar, J Xavier

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Study of the dependence of direct soft photon production on the jet characteristics in hadronic Z ⁰ decays

EUROPEAN PHYSICAL JOURNAL C 67:3-4 (2010) 343-366

Authors:

J Abdallah, P Abreu, W Adam, P Adzic, T Albrecht, R Alemany-Fernandez, T Allmendinger, PP Allport, U Amaldi, N Amapane, S Amato, E Anashkin, A Andreazza, S Andringa, N Anjos, P Antilogus, W-D Apel, Y Arnoud, S Ask, B Asman, JE Augustin, A Augustinus, P Baillon, A Ballestrero, P Bambade, R Barbier, D Bardin, GJ Barker, A Baroncelli, M Battaglia, M Baubillier, K-H Becks, M Begalli, A Behrmann, E Ben-Haim, N Benekos, A Benvenuti, C Berat, M Berggren, D Bertrand, M Besancon, N Besson, D Bloch, M Blom, M Bluj, M Bonesini, M Boonekamp, PSL Booth, G Borisov, O Botner, B Bouquet, TJV Bowcock, I Boyko, M Bracko, R Brenner, E Brodet, P Bruckman, JM Brunet, B Buschbeck, P Buschmann, M Calvi, T Camporesi, V Canale, F Carena, N Castro, F Cavallo, M Chapkin, Ph Charpentier, P Checchia, R Chierici, P Chliapnikov, J Chudoba, SU Chung, K Cieslik, P Collins, R Contri, G Cosme, F Cossutti, MJ Costa, D Crennell, J Cuevas, J D'Hondt, T da Silva, W Da Silva, G Della Ricca, A De Angelis, W De Boer, C De Clercq, B De Lotto, N De Maria, A De Min, L de Paula, L Di Ciaccio, A Di Simone, K Doroba, J Drees, G Eigen, T Ekelof, M Ellert, M Elsing, MC Espirito Santo, G Fanourakis, D Fassouliotis, M Feindt, J Fernandez, A Ferrer, F Ferro, U Flagmeyer, H Foeth, E Fokitis, F Fulda-Quenzer, J Fuster, M Gandelman, C Garcia, Ph Gavillet, E Gazis, R Gokieli, B Golob, G Gomez-Ceballos, P Goncalves, E Graziani, G Grosdidier, K Grzelak, J Guy, C Haag, A Hallgren, K Hamacher, K Hamilton, S Haug, F Hauler, V Hedberg, M Hennecke, J Hoffman, S-O Holmgren, PJ Holt, MA Houlden, JN Jackson, G Jarlskog, P Jarry, D Jeans, EK Johansson, P Jonsson, C Joram, L Jungermann, F Kapusta, S Katsanevas, E Katsoufis, G Kernel, BP Kersevan, U Kerzel, BT King, NJ Kjaer, P Kluit, P Kokkinias, C Kourkoumelis, O Kouznetsov, Z Krumstein, M Kucharczyk, J Lamsa, G Leder, F Ledroit, L Leinonen, R Leitner, J Lemonne, V Lepeltier, T Lesiak, W Liebig, D Liko, A Lipniacka, JH Lopes, JM Lopez, D Loukas, P Lutz, L Lyons, J MacNaughton, A Malek, S Maltezos, F Mandl, J Marco, R Marco, B Marechal, M Margoni, J-C Marin, C Mariotti, A Markou, C Martinez-Rivero, J Masik, N Mastroyiannopoulos, F Matorras, C Matteuzzi, F Mazzucato, M Mazzucato, R Mc Nulty, C Meroni, E Migliore, W Mitaroff, U Mjoernmark, T Moa, M Moch, K Moenig, R Monge, J Montenegro, D Moraes, S Moreno, P Morettini, U Mueller, K Muenich, M Mulders, L Mundim, W Murray, B Muryn, G Myatt, T Myklebust, M Nassiakou, F Navarria, K Nawrocki, S Nemecek, R Nicolaidou, M Nikolenko, A Oblakowska-Mucha, V Obraztsov, A Olshevski, A Onofre, R Orava, K Osterberg, A Ouraou, A Oyanguren, M Paganoni, S Paiano, JP Palacios, H Palka, Th D Papadopoulou, L Pape, C Parkes, F Parodi, U Parzefall, A Passeri, O Passon, L Peralta, V Perepelitsa, A Perrotta, A Petrolini, J Piedra, L Pieri, F Pierre, M Pimenta, E Piotto, T Podobnik, V Poireau, ME Pol, G Polok, V Pozdniakov, N Pukhaeva, A Pullia, D Radojicic, P Rebecchi, J Rehn, D Reid, R Reinhardt, P Renton, F Richard, J Ridky, M Rivero, D Rodriguez, A Romero, P Ronchese, P Roudeau, T Rovelli, V Ruhlmann-Kleider, D Ryabtchikov, A Sadovsky, L Salmi, J Salt, C Sander, A Savoy-Navarro, U Schwickerath, R Sekulin, M Siebel, A Sisakian, G Smadja, O Smirnova, A Sokolov, A Sopczak, R Sosnowski, T Spassov, M Stanitzki, A Stocchi, J Strauss, B Stugu, M Szczekowski, M Szeptycka, T Szumlak, T Tabarelli, F Tegenfeldt, J Timmermans, L Tkatchev, M Tobin, S Todorovova, B Tome, A Tonazzo, P Tortosa, P Travnicek, D Treille, G Tristram, M Trochimczuk, C Troncon, M-L Turluer, IA Tyapkin, P Tyapkin, S Tzamarias, V Uvarov, G Valenti, P Van Dam, J Van Eldik, N van Remortel, I Van Vulpen, G Vegni, F Veloso, W Venus, P Verdier, V Verzi, D Vilanova, L Vitale, V Vrba, H Wahlen, AJ Washbrook, C Weiser, D Wicke, J Wickens, G Wilkinson, M Winter, M Witek, O Yushchenko, A Zalewska, P Zalewski, D Zavrtanik, V Zhuravlov, NI Zimin, A Zintchenko, M Zupan

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Higher-order multipole amplitudes in charmonium radiative transitions

Physical Review D - Particles, Fields, Gravitation and Cosmology 80:11 (2009)

Authors:

M Artuso, S Blusk, S Khalil, R Mountain, K Randrianarivony, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, R Ehrlich, L Fields, RS Galik, L Gibbons, SW Gray, DL Hartill, BK Heltsley, JM Hunt, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krüger, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, KY Gao, J Hietala, R Poling, P Zweber, S Dobbs, Z Metreveli, KK Seth, BJY Tan, A Tomaradze, S Brisbane, J Libby, L Martin, A Powell, P Spradlin, C Thomas, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang

Abstract:

Using 24×106 ψ′≡ψ(2S) decays in CLEO-c, we have searched for higher multipole admixtures in electric-dipole-dominated radiative transitions in charmonia. We find good agreement between our data and theoretical predictions for magnetic quadrupole (M2) amplitudes in the transitions ψ′→γχc1,c2 and χc1,c2→γJ/ ψ, in striking contrast to some previous measurements. Let b2J and a2J denote the normalized M2 amplitudes in the respective aforementioned decays, where the superscript J refers to the angular momentum of the χcJ. By performing unbinned maximum likelihood fits to full five-parameter angular distributions, we found the following values of M2 admixtures for Jχ=1: a2J=1=(-6.26±0.63±0.24)×10-2 and b2J=1=(2.76±0. 73±0.23)×10-2, which agree well with theoretical expectations for a vanishing anomalous magnetic moment of the charm quark. For Jχ=2, if we fix the electric octupole (E3) amplitudes to zero as theory predicts for transitions between charmonium S states and P states, we find a2J=2=(-9.3±1.6±0.3)×10-2 and b2J=2=(1.0±1. 3±0.3)×10-2. If we allow for E3 amplitudes we find, with a four-parameter fit, a2J=2=(-7.9±1.9±0.3)×10-2, b2J=2=(0.2±1.4±0.4)×10-2, a3J=2=(1.7±1.4±0.3) ×10-2, and b3J=2=(-0.8±1.2±0.2)×10-2. We determine the ratios a2J=1/a2J=2=0.67-0.13+0.19 and a2J=1/b2J=1=-2.27-0.99+0.57, where the theoretical predictions are independent of the charmed quark magnetic moment and are a2J=1/a2J=2=0.676±0.071 and a2J=1/b2J=1=-2.27±0.16. © 2009 The American Physical Society.

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Guy Wilkinson

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Search for the decay J/ψ → γ plus invisible

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Search for the rare decay B_s⁰ → μ⁺μ^-

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Search for ψ(2S) → γηc(2S) via fully reconstructed ηc(2S) decays

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Study of the dependence of direct soft photon production on the jet characteristics in hadronic Z ⁰ decays

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Higher-order multipole amplitudes in charmonium radiative transitions

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Search for the decay J/ψ → γ plus invisible

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Search for the rare decay Bs0 → μ+μ-

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Search for ψ(2S) → γηc(2S) via fully reconstructed ηc(2S) decays

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Study of the dependence of direct soft photon production on the jet characteristics in hadronic Z 0 decays

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Higher-order multipole amplitudes in charmonium radiative transitions

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Search for the rare decay B_s⁰ → μ⁺μ^-

Study of the dependence of direct soft photon production on the jet characteristics in hadronic Z ⁰ decays