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

L3 Collaboration

doi:10.1016/S0370-2693(97)01003-4

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

L3 Collaboration

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50 Scopus citations

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 γX 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 Zγ couplings, the τ neutrino magnetic moment, and the branching ratio for Z → γX.

Original language	English
Pages (from-to)	201-209
Number of pages	9
Journal	Physics Letters B
Volume	412
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)01003-4
State	Published - Oct 23 1997

Funding

3 Supported by the German Bundesministeriumf ti Bildung, Wissenschaft. Forschung und Technologie. 4 Supportedb y the National Natural Science Foundation of China. 5 Supported by the Hungarian OTKA fund under contract numbers T14459 and T24011.

Funders	Funder number
Forschung und Technologie
German Bundesministeriumf ti Bildung, Wissenschaft
National Natural Science Foundation of China
Hungarian Scientific Research Fund	T14459, T24011
Hungarian Scientific Research Fund

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10.1016/S0370-2693(97)01003-4

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title = "Search for new physics in energetic single photon production in e+e- annihilation at the Z resonance",

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 γX 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 Zγ couplings, the τ neutrino magnetic moment, and the branching ratio for Z → γX.",

author = "{L3 Collaboration} and M. Acciani and O. Adriani and M. Aguilar-Benitez and S. Ahlen and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and G. Alverson and Alviggi, {M. G.} and G. Ambrosi and H. Anderhub and Andreev, {V. P.} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and L. Baksay and Ball, {R. C.} and S. Banerjee and Sw Banerjee and K. Banicz and A. Barczyk and R. Barill{\`e}re and L. Barone and P. Bartalini and A. Baschirotto and M. Basile and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and J. Berdugo and P. Berges and B. Bertucci and Betev, {B. L.} and S. Bhattacharya and M. Biasini and A. Biland and Bilei, {G. M.} and Blaising, {J. J.} and Blyth, {S. C.} and Bobbink, {G. J.} and R. Bock and A. B{\"o}hm and L. Boldizsar and K. Read",

note = "Publisher Copyright: {\textcopyright} 1997 Elsevier Science B.V.",

year = "1997",

month = oct,

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doi = "10.1016/S0370-2693(97)01003-4",

language = "English",

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TY - JOUR

T1 - Search for new physics in energetic single photon production in e+e- annihilation at the Z resonance

AU - L3 Collaboration

AU - Acciani, M.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Ahlen, S.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alverson, G.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelescu, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Baksay, L.

AU - Ball, R. C.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Banicz, K.

AU - Barczyk, A.

AU - Barillère, R.

AU - Barone, L.

AU - Bartalini, P.

AU - Baschirotto, A.

AU - Basile, M.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biland, A.

AU - Bilei, G. M.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Bock, R.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Read, K.

PY - 1997/10/23

Y1 - 1997/10/23

N2 - 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 γX 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 Zγ couplings, the τ neutrino magnetic moment, and the branching ratio for Z → γX.

AB - 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 γX 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 Zγ couplings, the τ neutrino magnetic moment, and the branching ratio for Z → γX.

UR - http://www.scopus.com/inward/record.url?scp=0008996774&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(97)01003-4

DO - 10.1016/S0370-2693(97)01003-4

M3 - Article

AN - SCOPUS:0008996774

SN - 0370-2693

VL - 412

SP - 201

EP - 209

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

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

Abstract

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