@article{c2dac00a5e364e7286623e5f3c95c17e,

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 C. Tully",

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

year = "1997",

month = oct,

day = "23",

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

language = "English (US)",

volume = "412",

pages = "201--209",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}