The acoplanar photon pairs produced in the reaction e(+) e(-) --> vvyy are analysed in the 700 pb(-1) of data collected by the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. No deviation from the Standard Model predictions is seen in any of the distributions examined. The resulting 95% C.L. limits set on anomalous QGCs, a(0)(Z), a(c)(Z), a(0)(W) and a(c)(W), are -0.012 < a(0)(Z)/Lambda(2) < +0.019 GeV(-2), -0.041 < a(c)(Z)/Lambda(2) < +0.044 GeV(-2), -0.060 < a(0)(W)/Lambda(2) < +0.055 GeV(-2), -0.099 < a(c)(W)/Lambda(2) < +0.093 GeV(-2), where Lambda is the energy scale of the new physics responsible for the anomalous couplings.

Constraints on anomalous QGCs in e(+)e(-) interactions from 183 to 209 GeV / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 602:1-2(2004), pp. 31-40. [10.1016/j.physletb.2004.09.041]

Constraints on anomalous QGCs in e(+)e(-) interactions from 183 to 209 GeV

CREANZA, Donato Maria;DE FILIPPIS, Nicola;IASELLI, Giuseppe;MAGGI, Giorgio Pietro;
2004

Abstract

The acoplanar photon pairs produced in the reaction e(+) e(-) --> vvyy are analysed in the 700 pb(-1) of data collected by the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. No deviation from the Standard Model predictions is seen in any of the distributions examined. The resulting 95% C.L. limits set on anomalous QGCs, a(0)(Z), a(c)(Z), a(0)(W) and a(c)(W), are -0.012 < a(0)(Z)/Lambda(2) < +0.019 GeV(-2), -0.041 < a(c)(Z)/Lambda(2) < +0.044 GeV(-2), -0.060 < a(0)(W)/Lambda(2) < +0.055 GeV(-2), -0.099 < a(c)(W)/Lambda(2) < +0.093 GeV(-2), where Lambda is the energy scale of the new physics responsible for the anomalous couplings.
2004
Constraints on anomalous QGCs in e(+)e(-) interactions from 183 to 209 GeV / A. HEISTER AND S., S., R., B., R., B., I., D.B., D., D., C., G., S., J., J. P., L., F., M., E., M., M. N., M., B. PIETRZYK AND B., T., G., B., S., B., M. P., C., M., C., J. M., C., E., F., M., F.B., Garrido, L.L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 602:1-2(2004), pp. 31-40. [10.1016/j.physletb.2004.09.041]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/7270
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