EPJ

2023 Impact factor 4.2
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 13, 283-293
DOI 10.1007/s100520000305

Bosonic quartic couplings at LEP2

G. Bélanger1 - F. Boudjema1 - Y. Kurihara2 - D. Perret-Gallix3 - A. Semenov4

1 Laboratoire de Physique Théorique LAPTH, Chemin de Bellevue, B.P. 110, 74941 Annecy-le-Vieux, Cedex, France
2 High Energy Accelerator Research Organisation, KEK, Tsukuba, Ibaraki 305-801, Japan
3 LAPP, Chemin de Bellevue, B.P. 110, 74941 Annecy-le-Vieux, Cedex, France
4 Joint Institute for Nuclear Research, JINR, 141980 Dubna, Russia

Received: 9 September 1999 / Revised version: 19 October 1999 /
Published online: 17 February 2000 - © Springer-Verlag 2000

Abstract
We list the set of ${\cal{C}}\;$and ${\cal{P}}\;$conserving anomalous quartic vector bosons self-couplings which can be tested at LEP2 through triple vector boson production. We show how this set can be embedded in manifestly $SU(2) \times U(1)$ gauge invariant operators exhibiting an SU(2)c global symmetry. We derive bounds on these various couplings and show the most relevant distributions that can enhance their contribution. We also find that an e+ e- collider running at 500 GeV can improve the LEP2 limits by as much as three-orders of magnitude.

Copyright Società Italiana di Fisica, Springer-Verlag 2000

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