Using a sample of e(+)e(-) annihilation events collected with the L3 detector at the Z resonance corresponding to an integrated luminosity of 137 pb(-1), we have searched for anomalous production of gamma X final states where X represents stable, weakly interacting particles and the photon energy is greater than 15 GeV. The sample of events found is consistent with Standard Model expectations. Upper limits are set on Z gamma couplings, the tau neutrino magnetic moment, and the branching ratio for Z --> gamma X. (C) 1997 Elsevier Science B.V.

Search for new physics in energetic single photon production in e(+)e(-) annihilation at the Z resonance / Acciarri, M., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alverson, G., Alviggi, M.g., Ambrosi, G., Anderhub, H., Andreev, V.p., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 412:(1997), pp. 201-209. [10.1016/S0370-2693(97)01003-4]

Search for new physics in energetic single photon production in e(+)e(-) annihilation at the Z resonance

BAGNAIA, Paolo;BARONE, Luciano Maria;FERRONI, Fernando;GENTILE, Simonetta;GIAGU, Stefano;LUCI, Claudio;ORGANTINI, Giovanni;
1997

Abstract

Using a sample of e(+)e(-) annihilation events collected with the L3 detector at the Z resonance corresponding to an integrated luminosity of 137 pb(-1), we have searched for anomalous production of gamma X final states where X represents stable, weakly interacting particles and the photon energy is greater than 15 GeV. The sample of events found is consistent with Standard Model expectations. Upper limits are set on Z gamma couplings, the tau neutrino magnetic moment, and the branching ratio for Z --> gamma X. (C) 1997 Elsevier Science B.V.
1997
01 Pubblicazione su rivista::01a Articolo in rivista
Search for new physics in energetic single photon production in e(+)e(-) annihilation at the Z resonance / Acciarri, M., Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alverson, G., Alviggi, M.g., Ambrosi, G., Anderhub, H., Andreev, V.p., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 412:(1997), pp. 201-209. [10.1016/S0370-2693(97)01003-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/241620
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