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Missing mass spectra in hadronic events from e(+)e(-) collisions at root s=161-172GeV and limits on invisible Higgs decays
Authors :
Acciarri, M Adriani, O Aguilar-Benítez, M Ahlen, S P Alcaraz, J Alemanni, G Allaby, James V Aloisio, A Alverson, G Alviggi, M G Ambrosi, G Anderhub, H Andreev, V P Angelescu, T Anselmo, F Arefev, A Azemoon, T Aziz, T Bagnaia, P Baksay, L Banerjee, S Banerjee, Sw Banicz, K Barczyk, A Barillère, R Barone, L Bartalini, P Baschirotto, A Basile, M Battiston, R Bay, A Becattini, F Becker, U Behner, F Berdugo, J Berges, P Bertucci, B Betev, B L Bhattacharya, S Biasini, M Biland, A Bilei, G M Blaising, J J Blyth, S C Bobbink, Gerjan J Böck, R K Böhm, A Boldizsar, L Borgia, B Bourilkov, D Bourquin, Maurice Braccini, S Branson, J G Brigljevic, V Brock, I C Buffini, A Buijs, A Burger, J D Burger, W J Busenitz, J K Button, A M Cai, X D Campanelli, M Capell, M Cara Romeo, G Carlino, G Cartacci, A M Casaus, J Castellini, G Cavallari, F Cavallo, N Cecchi, C Cerrada-Canales, M Cesaroni, F Chamizo-Llatas, M Chang, Y H Chaturvedi, U K Chekanov, S V Chemarin, M Chen, A Chen, G Chen, G M Chen, H F Chen, H S Chéreau, X J Chiefari, G Chien, C Y Cifarelli, Luisa Cindolo, F Civinini, C Clare, I Clare, R Cohn, H O Coignet, G Colijn, A P Colino, N Commichau, V Costantini, S Cotorobai, F de la Cruz, B Csilling, Akos Dai, T S Alessandro, R D De Asmundis, R Degré, A Deiters, K Della Volpe, D Denes, P De Notaristefani, F DiBitonto, Daryl Diemoz, M Van Dierendonck, D N Di Lodovico, F Dionisi, C Dittmar, Michael Dominguez, A Doria, A Dova, M T Duchesneau, D Duinker, P Durán, I Dutta, S Easo, S Efremenko, Yu V El-Mamouni, H Engler, A Eppling, F J Erné, F C Ernenwein, J P Extermann, Pierre Fabre, M Faccini, R Falciano, S Favara, A Fay, J Fedin, O Felcini, Marta Fenyi, B Ferguson, T Ferroni, F Fesefeldt, H S Fiandrini, E Field, J H Filthaut, Frank Fisher, P H Fisk, I Forconi, G Fredj, L Freudenreich, Klaus Furetta, C Galaktionov, Yu Ganguli, S N García-Abia, P Gau, S S Gentile, S Gheordanescu, N Giagu, S Goldfarb, S Goldstein, J Gong, Z F Gougas, Andreas Gratta, Giorgio Grünewald, M W Gupta, V K Gurtu, A Gutay, L J Hartmann, B Hasan, A Hatzifotiadou, D Hebbeker, T Hervé, A Van Hoek, W C Hofer, H Hong, S J Hoorani, H Hou, S R Hu, G Innocente, Vincenzo Jenkes, K Jin, B N Jones, L W de Jong, P Josa-Mutuberria, I Kasser, A Khan, R A Kamrad, D Kamyshkov, Yu A Kapustinsky, J S Karyotakis, Yu Kaur, M Kienzle-Focacci, M N Kim, D Kim, D H Kim, J K Kim, S C Kim, Y G Kinnison, W W Kirkby, A Kirkby, D Kirkby, Jasper Kiss, D Kittel, E W Klimentov, A König, A C Kopp, A Korolko, I Koutsenko, V F Krämer, R W Krenz, W Kunin, A Ladrón de Guevara, P Laktineh, I Landi, G Lapoint, C Lassila-Perini, K M Laurikainen, P Lebeau, M Lebedev, A Lebrun, P Lecomte, P Lecoq, P Le Coultre, P Lee, H J Le Goff, J M Leiste, R Leonardi, E Levchenko, P M Li Chuan Lin, C H Lin, W T Linde, Frank L Lista, L Liu, Z A Lohmann, W Longo, E Lu, W Lü, Y S Lübelsmeyer, K Luci, C Luckey, D Luminari, L Lustermann, W Ma Wen Gan Maity, M Majumder, G Malgeri, L Malinin, A Maña, C Mangeol, D J J Mangla, S Marchesini, P A Marin, A Martin, J P Marzano, F Massaro, G G G McNally, D McNeil, R R Mele, S Merola, L Meschini, M Metzger, W J Von der Mey, M Mi, Y Mihul, A Mil, A J W Milcent, H Mirabelli, G Mnich, J Molnár, P Monteleoni, B Moore, R Morganti, S Moulik, T Mount, R Müller, S Muheim, F Muijs, A J M Nahn, S Napolitano, M Nessi-Tedaldi, F Newman, H Niessen, T Nippe, A Nisati, A Nowak, H Oh, Yu D Opitz, H Organtini, G Ostonen, R Palomares, C Pandoulas, D Paoletti, S Paolucci, P Park, H K Park, I H Pascale, G Passaleva, G Patricelli, S Paul, T Pauluzzi, M Paus, C Pauss, Felicitas Peach, D Pei, Y J Pensotti, S Perret-Gallix, D Petersen, B Petrak, S Pevsner, A Piccolo, D Pieri, M Piroué, P A Pistolesi, E Plyaskin, V Pohl, M Pozhidaev, V Postema, H Produit, N Prokofev, D Prokofiev, D O Rahal-Callot, G Raja, N Rancoita, P G Rattaggi, M Raven, G Razis, P A Read, K Ren, D Rescigno, M Reucroft, S Van Rhee, T Riemann, S Riles, K Robohm, A Rodin, J Roe, B P Romero, L Rosier-Lees, S Rosselet, P Van Rossum, W Roth, S Rubio, Juan Antonio Ruschmeier, D Rykaczewski, H Salicio, J Sánchez, E Sanders, M P Sarakinos, M E Sarkar, S Sassowsky, M Schäfer, C Shchegelskii, V Schmidt-Kärst, S Schmitz, D Schmitz, P Scholz, N Schopper, Herwig Franz Schotanus, D J Schwenke, J Schwering, G Sciacca, C Sciarrino, D Servoli, L Shevchenko, S Shivarov, N Shoutko, V Shukla, J Shumilov, E Shvorob, A V Siedenburg, T Son, D Sopczak, André Smith, B Spillantini, P Steuer, M Stickland, D P Stone, A Stone, H Stoyanov, B Strässner, A Strauch, K Sudhakar, K Sultanov, G G Sun, L Z Susinno, G F Suter, H Swain, J D Tang, X W Tauscher, Ludwig Taylor, L Ting, Samuel C C Ting, S M Tonutti, M Tonwar, S C Tóth, J Tully, C Tuchscherer, H Tung, K L Uchida, Y Ulbricht, J Uwer, U Valente, E Van de Walle, R T Vesztergombi, G Vetlitskii, I Viertel, Gert M Vivargent, M Völkert, R Vogel, H Vogt, H Vorobev, I Vorobyov, A A Vorvolakos, A Wadhwa, M Wallraff, W Wang, J C Wang, X L Wang, Z M Weber, A Wittgenstein, F Wu, S X Wynhoff, S Xu, J Xu, Z Z Yang, B Z Yang, C G Yao, X Y Ye, J B Yeh, S C You, J M Zalite, A Zalite, Yu Zemp, P Zeng, Y Zhang, Z Zhang, Z P Zhou, B Zhu, G Y Zhu, R Y Zichichi, Antonino Ziegler, F Laboratoire d'Annecy de Physique des Particules (LAPP) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS) Institut de Physique Nucléaire de Lyon (IPNL) Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) CMS Institut de Physique des 2 Infinis de Lyon (IP2I Lyon) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) L3 L3 (IHEF, IoP, FNWI) Acciarri, M. Adriani, O. Aguilar Benitez, M. Ahlen, S. Alcaraz, J. Alemanni, G. Allaby, J. Aloisio, Alberto Alverson, G. Alviggi, Mariagrazia Ambrosi, G. Anderhub, H. Andreev, V. P. Angelescu, T. Anselmo, F. Arefiev, A. Azemoon, T. Aziz, T. Bagnaia, P. Baksay, L. Banerjee, S. Banicz, K. Barczyk, A. Barillere, R. Barone, L. Bartalini, P. Baschirotto, A. Basile, M. Battiston, R. Bay, A. Becattini, F. Becker, U. Behner, F. Berdugo, J. Berges, P. Bertucci, B. Betev, B. L. Bhattacharya, S. Biasini, M. Biland, A. Bilei, G. M. Blaising, J. J. Blyth, S. C. Bobbink, G. J. Bock, R. Bohm, A. Boldizsar, L. Borgia, B. Bourilkov, D. Bourquin, M. Braccini, S. Branson, J. G. Brigljevic, V. Brock, I. C. Buffini, A. Buijs, A. Burger, J. D. Burger, W. J. Busenitz, J. Button, A. Cai, X. D. Campanelli, M. Capell, M. Romeo, G. C. Carlino, G. Cartacci, A. M. Casaus, J. Castellini, G. Cavallari, F. Cavallo, N. Cecchi, C. Cerrada, M. Cesaroni, F. Chamizo, M. Chang, Y. H. Chaturvedi, U. K. Chekanov, S. V. Chemarin, M. Chen, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chereau, X. Chiefari, Giovanni Chien, C. Y. Cifarelli, L. Cindolo, F. Civinini, C. Clare, I. Clare, R. Cohn, H. O. Coignet, G. Colijn, A. P. Colino, N. Commichau, V. Costantini, S. Cotorobai, F. B. d., La Csilling, A. Dai, T. S. D'Alessandro, R. Asmundis, R. d. Degre, A. Deiters, K. Volpe, D. d. Denes, P. Denotaristefani, F. Dibitonto, D. Diemoz, M. Dierendonck, D. v. Lodovico, F. D. Dionisi, C. Dittmar, M. Dominguez, A. Doria, A. Dova, M. T. Duchesneau, D. Duinker, P. Duran, I. Dutta, S. Easo, S. Efremenko, Y. Mamouni, H. E. Engler, A. Eppling, F. J. Erne, F. C. Ernenwein, J. P. Extermann, P. Fabre, M. Faccini, R. Falciano, S. Favara, A. Fay, J. Fedin, O. Felcini, M. Fenyi, B. Ferguson, T. Ferroni, F. Fesefeldt, H. Fiandrini, E. Field, J. H. Filthaut, F. Fisher, P. H. Fisk, I. Forconi, G. Fredj, L. Freudenreich, K. Furetta, C. Galaktionov, Y. Ganguli, S. N. Garcia Abia, P. Gau, S. S. Gentile, S. Gheordanescu, N. Giagu, S. Goldfarb, S. Goldstein, J. Gong, Z. F. Gougas, A. Gratta, G. Gruenewald, M. W. Gupta, V. K. Gurtu, A. Gutay, L. J. Hartmann, B. Hasan, A. Hatzifotiadou, D. Hebbeker, T. Herve, A. Van, W. C. Hofer, H. Hong, S. J. Hoorani, H. Hou, S. R. Hu, G. Innocente, V. Jenkes, K. Jin, B. N. Jones, L. W. Jong, P. d. Josa Mutuberria, I. Kasser, A. Khan, R. A. Kamrad, D. Kamyshkov, Y. Kapustinsky, J. S. Karyotakis, Y. Kaur, M. Kienzle Focacci, M. N. Kim, D. Kim, D. H. Kim, J. K. Kim, S. C. Kim, Y. G. Kinnison, W. W. Kirkby, A. Kirkby, D. Kirkby, J. Kiss, D. Kittel, W. Klimentov, A. Konig, A. C. Kopp, A. Korolko, I. Koutsenko, V. Kraemer, R. W. Krenz, W. Kunin, A. P. L., De Laktineh, I. Landi, G. Lapoint, C. Lassila Perini, K. Laurikainen, P. Lebeau, M. Lebedev, A. Lebrun, P. Lecomte, P. Lecoq, P. Coultre, P. L. Lee, H. J. J. M., Le Leiste, R. Leonardi, E. Levtchenko, P. Li, C. Lin, C. H. Lin, W. T. Linde, F. L. Lista, L. Liu, Z. A. Lohmann, W. Longo, E. Lu, W. Y. S., Lu Lubelsmeyer, K. Luci, C. Luckey, D. Luminari, L. Lustermann, W. W. G., Ma Maity, M. Majumder, G. Malgeri, L. Malinin, A. Mana, C. Mangeol, D. Mangla, S. Marchesini, P. Marin, A. Martin, J. P. Marzano, F. G. G. G. Mcnally, D. Mcneil, R. R. Mele, S. Merola, Leonardo Meschini, M. Metzger, W. J. Der, M. v. Mi, Y. Mihul, A. A. J. W. Milcent, H. Mirabelli, G. Mnich, J. Molnar, P. Monteleoni, B. Moore, R. Morganti, S. Moulik, T. Mount, R. Muller, S. Muheim, F. A. J. M. Nahn, S. Napolitano, Marco Nessi Tedaldi, F. Newman, H. Niessen, T. Nippe, A. Nisati, A. Nowak, H. Y. D., Oh Opitz, H. Organtini, G. Ostonen, R. Palomares, C. Pandoulas, D. Paoletti, S. Paolucci, P. Park, H. K. Park, I. H. Pascale, G. Passaleva, G. Patricelli, Sergio Paul, T. Pauluzzi, M. Paus, C. Pauss, F. Peach, D. Pei, Y. J. Pensotti, S. Perret Gallix, D. Petersen, B. Petrak, S. Pevsner, A. Piccolo, D. Pieri, M. Piroue, P. A. Pistolesi, E. Plyaskin, V. Pohl, M. Pojidaev, V. Postema, H. Produit, N. Prokofiev, D. Rahal Callot, G. Raja, N. Rancoita, P. G. Rattaggi, M. Raven, G. Razis, P. Read, K. Ren, D. Rescigno, M. Reucroft, S. Rhee, T. v. Riemann, S. Riles, K. Robohm, A. Rodin, J. Roe, B. P. Romero, L. Rosier Lees, S. Rosselet, P. Rossum, W. v. Roth, S. Rubio, J. A. Ruschmeier, D. Rykaczewski, H. Salicio, J. Sanchez, E. Sanders, M. P. Sarakinos, M. E. Sarkar, S. Sassowsky, M. Schafer, C. Schegelsky, V. Schmidt Kaerst, S. Schmitz, D. Schmitz, P. Scholz, N. Schopper, H. Schotanus, D. J. Schwenke, J. Schwering, G. Sciacca, Crisostomo Sciarrino, D. Servoli, L. Shevchenko, S. Shivarov, N. Shoutko, V. Shukla, J. Shumilov, E. Shvorob, A. Siedenburg, T. Son, D. Sopczak, A. Smith, B. Spillantini, P. Steuer, M. Stickland, D. P. Stone, A. Stone, H. Stoyanov, B. Straessner, A. Strauch, K. Sudhakar, K. Sultanov, G. Sun, L. Z. Susinno, G. F. Suter, H. Swain, J. D. Tang, X. W. Tauscher, L. Taylor, L. S. C. C. Ting, S. M. Tonutti, M. Tonwar, S. C. Toth, J. Tully, C. Tuchscherer, H. Tung, K. L. Uchida, Y. Ulbricht, J. Uwer, U. Valente, E. Van, R. T. Vesztergombi, G. Vetlitsky, I. Viertel, G. Vivargent, M. Volkert, R. Vogel, H. Vogt, H. Vorobiev, I. Vorobyov, A. A. Vorvolakos, A. Wadhwa, M. Wallraff, W. Wang, J. C. Wang, X. L. Wang, Z. M. Weber, A. Wittgenstein, F. S. X., Wu Wynhoff, S. Xu, J. Z. Z., Xu Yang, B. Z. Yang, C. G. Yao, X. Y. J. B., Ye Yeh, S. C. You, J. M. Zalite, A. Zalite, Y. Zemp, P. Zeng, Y. Zhang, Z. Zhang, Z. P. Zhou, B. Zhu, G. Y. Zhu, R. Y. Zichichi, A. Ziegler, F.
Source :
Physics Letters B, Physics Letters B, Elsevier, 1998, 418, pp.389-398. ⟨10.1016/S0370-2693(97)01394-4⟩, Physics Letters B, 418. Elsevier
Publication Year :
1998
Abstract
Events characterised by large hadronic energy and transverse momentum are selected from the data collected by the L3 detector at LEP at centre-of-mass energies between 161 and 172 GeV, corresponding to an integrated luminosity of 21 pb(-1) The visible mass and the missing mass distributions of the selected events are consistent with those expected from Standard Model processes. This result is combined with that from data taken at the Z resonance to sci an upper limit on the production rate and decay into invisible final states of a non-minimal Higgs boson. as a function of the Higgs mass. Assuming the non-minimal Higgs production cross section to be the same as for the Standard Model Higgs boson and the decay branching fraction into invisible final states to be 100%, a Higgs mass lower limit of 69.6 GeV is derived at 95% confidence level. (C) 1998 Elsevier Science B.V.