Measurement of the W+W- gamma Cross Section and Direct Limits on Anomalous Quartic Gauge Boson Couplings at LEP.

Acciarri, M; Achard, P; Adriani, O; Aguilar-Benitez, M; Alcaraz, J; Alemanni, G; Allaby, J; Aloisio, A; Alviggi, Mg; Ambrosi, G; Anderhub, H; Andreev, Vp; Angelescu, T; Anselmo, F; Arefiev, A; Azemoon, T; Aziz, T; Bagnaia, P; Bajo, A; Baksay, L; Balandras, A; Baldew, Sv; Banerjee, S; Banerjee, Sw; Barczyk, A; Barillere, R; Bartalini, P; Basile, M; Battiston, R; Bay, A; Becattini, F; Becker, U; Behner, F; Bellucci, L; Berbeco, R; Berdugo, J; Berges, P; Bertucci, B; Betev, Bl; Bhattacharya, S; Biasini, M; Biland, A; Blaising, Jj; Blyth, Sc; Bobbink, Gj; Bohm, A; Boldizsar, L; Borgia, B; Bourilkov, D; Bourquin, M; Braccini, S; Branson, Jg; Brochu, F; Buffini, A; Buijs, A; Burger, Jd; Burger, Wj; Cai, Xd; Capell, M; Romeo, Gc; Carlino, G; Cartacci, Am; Casaus, J; Castellini, G; Cavallari, F; Cavallo, N; Cecchi, C; Cerrada, M; Cesaroni, F; Chamizo, M; Chang, Yh; Chaturvedi, Uk; Chemarin, M; Chen, A; Chen, G; Chen, Gm; Chen, Hf; Chen, Hs; Chiefari, G; Cifarelli, L; Cindolo, F; Civinini, C; Clare, I; Clare, R; Coignet, G; Colino, N; Costantini, S; Cotorobai, F; de la Cruz, B; Csilling, A; Cucciarelli, S; Dai, Ts; van Dalen, Ja; D'Alessandro, R; de Asmundis, R; Deglon, P; Degre, A; Deiters, K; della Volpe, D; Delmeire, E; Denes, P; Denotaristefani, F; De Salvo, A; Diemoz, M; Dierckxsens, M; van Dierendonck, D; Dionisi, C; Dittmar, M; Dominguez, A; Doria, A; Dova, Mt; Duchesneau, D; Dufournaud, D; Duinker, P; Duran, I; El Mamouni, H; Engler, A; Eppling, Fj; Erne, Fc; Extermann, P; Fabre, M; Falagan, Ma; Falciano, S; Favara, A; Fay, J; Fedin, O; Felcini, M; Ferguson, T; Fesefeldt, H; Fiandrini, E; Field, Jh; Filthaut, F; Fisher, Ph; Fisk, I; Forconi, G; Freudenreich, K; Furetta, C; Galaktionov, Y; Ganguli, Sn; Garcia-Abia, P; Gataullin, M; Gau, Ss; Gentile, S; Gheordanescu, N; Giagu, S; Gong, Zf; Grenier, G; Grimm, O; Gruenewald, Mw; Guida, M; van Gulik, R; Gupta, Vk; Gurtu, A; Gutay, Lj; Haas, D; Hasan, A; Hatzifotiadou, D; Hebbeker, T; Herve, A; Hidas, P; Hirschfelder, J; Hofer, H; Holzner, G; Hoorani, H; Hou, Sr; Hu, Y; Iashvili, I; Jin, Bn; Jones, Lw; de Jong, P; Josa-Mutuberria, I; Khan, Ra; Kaur, M; Kienzle-Focacci, Mn; Kim, D; Kim, Jk; Kirkby, J; Kiss, D; Kittel, W; Klimentov, A; Konig, Ac; Kopp, A; Koutsenko, V; Kraber, M; Kraemer, Rw; Krenz, W; Kruger, A; Kunin, A; de Guevara, Pl; Laktineh, I; Landi, G; Lebeau, M; Lebedev, A; Lebrun, P; Lecomte, P; Lecoq, P; Le Coultre, P; Lee, Hj; Le Goff, Jm; Leiste, R; Levtchenko, P; Li, C; Likhoded, S; Lin, Ch; Lin, Wt; Linde, Fl; Lista, L; Liu, Za; Lohmann, W; Longo, E; Lu, Ys; Lubelsmeyer, K; Luci, C; Luckey, D; Lugnier, L; Luminari, L; Lustermann, W; Ma, Wg; Maity, M; Malgeri, L; Malinin, A; Mana, C; Mangeol, D; Mans, J; Marian, G; Martin, Jp; Marzano, F; Mazumdar, K; Mcneil, Rr; Mele, S; Merola, L; Meschini, M; Metzger, Wj; von der Mey, M; Mihul, A; Milcent, H; Mirabelli, G; Mnich, J; Mohanty, Gb; Moulik, T; Muanza, Gs; Muijs, Ajm; Musicar, B; Musy, M; Napolitano, M; Nessi-Tedaldi, F; Newman, H; Niessen, T; Nisati, A; Nowak, H; Ofierzynski, R; Organtini, G; Oulianov, A; Palomares, C; Pandoulas, D; Paoletti, S; Paolucci, P; Paramatti, R; Park, Hk; Park, Ih; Passaleva, G; Patricelli, S; Paul, T; Pauluzzi, M; Paus, C; Pauss, F; Pedace, M; Pensotti, S; Perret-Gallix, D; Petersen, B; Piccolo, D; Pierella, F; Pieri, M; Piroue, Pa; Pistolesi, E; Plyaskin, V; Pohl, M; Pojidaev, V; Postema, H; Pothier, J; Prokofiev, Do; Prokofiev, D; Quartieri, J; Rahal-Callot, G; Rahaman, Ma; Raics, P; Raja, N; Ramelli, R; Rancoita, Pg; Ranieri, R; Raspereza, A; Raven, G; Razis, P; Ren, D; Rescigno, M; Reucroft, S; Riemann, S; Riles, K; Rodin, J; Roe, Bp; Romero, L; Rosca, A; Rosier-Lees, S; Rubio, Ja; Ruggiero, G; Rykaczewski, H; Saremi, S; Sarkar, S; Salicio, J; Sanchez, E; Sanders, Mp; Sarakinos, Me; Schafer, C; Schegelsky, V; Schmidt-Kaerst, S; Schmitz, D; Schopper, H; Schotanus, Dj; Schwering, G; Sciacca, C; Seganti, A; Servoli, L; Shevchenko, S; Shivarov, N; Shoutko, V; Shumilov, E; Shvorob, A; Siedenburg, T; Son, D; Smith, B; Spillantini, P; Steuer, M; Stickland, Dp; Stone, A; Stoyanov, B; Straessner, A; Sudhakar, K; Sultanov, G; Sun, Lz; Suter, H; Swain, Jd; Szillasi, Z; Sztaricskai, T; Tang, Xw; Tauscher, L; Taylor, L; Tellili, B; Timmermans, C; Ting, Scc; Ting, Sm; Tonwar, Sc; Toth, J; Tully, C; Tung, Kl; Uchida, Y; Ulbricht, J; Valente, E; Vesztergombi, G; Vetlitsky, I; Vicinanza, D; Viertel, G; Villa, S; Violini, P; Vivargent, M; Vlachos, S; Vodopianov, I; Vogel, H; Vogt, H; Vorobiev, I; Vorobyov, Aa; Vorvolakos, A; Wadhwa, M; Wallraff, W; Wang, M; Wang, Xl; Wang, Zm; Weber, A; Weber, M; Wienemann, P; Wilkens, H; Wu, Sx; Wynhoff, S; Xia, L; Xu, Zz; Yamamoto, J; Yang, Bz; Yang, Cg; Yang, Hj; Yang, M; Ye, Jb; Yeh, Sc; Zalite, A; Zalite, Y; Zhang, Zp; Zhu, Gy; Zhu, Ry; Zichichi, A; Zilizi, G; Zimmermann, B; Zoller, M.

doi:10.1016/S0370-2693(00)00993-X

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The process e(+)e(-)-->W(+)W(-)gamma is analysed using the data collected with the L3 detector at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.8 pb(-1). Based on a sample of 42 selected W+W- candidates containing an isolated hard photon, the W(+)W(-)gamma cross section, defined within phase-space cuts, is measured to be: sigma(WW gamma) = 290 +/- 80 +/- 16 fb, consistent with the Standard Model expectation. Including the process e(+)c(-)-->upsilon<(upsilon)over bar>gamma gamma, limits are derived on anomalous contributions to the Standard Model quartic vertices W(+)W(-)gamma gamma and W(+)W(-)Z gamma at 95% CL: -0.043 GeV-2 < a(0)/Lambda(2) < 0.043 GeV-2, -0.08 GeV-2 < a(c)/Lambda(2) < 0.13 GeV-2, -0.41 GeV-2 < a(n)/Lambda(2) < 0.37 GeV-2. (C) 2000

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/1060055

Titolo:	Measurement of the W+W- gamma Cross Section and Direct Limits on Anomalous Quartic Gauge Boson Couplings at LEP.
Autori interni:	GUIDA, Michele QUARTIERI, Joseph
Data di pubblicazione:	2002
Rivista:	PHYSICS LETTERS. SECTION B
Abstract:	The process e(+)e(-)-->W(+)W(-)gamma is analysed using the data collected with the L3 detector at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.8 pb(-1). Based on a sample of 42 selected W+W- candidates containing an isolated hard photon, the W(+)W(-)gamma cross section, defined within phase-space cuts, is measured to be: sigma(WW gamma) = 290 +/- 80 +/- 16 fb, consistent with the Standard Model expectation. Including the process e(+)c(-)-->upsilon<(upsilon)over bar>gamma gamma, limits are derived on anomalous contributions to the Standard Model quartic vertices W(+)W(-)gamma gamma and W(+)W(-)Z gamma at 95% CL: -0.043 GeV-2 < a(0)/Lambda(2) < 0.043 GeV-2, -0.08 GeV-2 < a(c)/Lambda(2) < 0.13 GeV-2, -0.41 GeV-2 < a(n)/Lambda(2) < 0.37 GeV-2. (C) 2000
Handle:	http://hdl.handle.net/11386/1060055
Appare nelle tipologie:	1.1.1 Articolo su rivista con DOI

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