The forward-backward charge asymmetry for the process (Formula presented). is measured as a function of the invariant mass of the dimuon system. Measurements are performed using proton proton collision data collected with the LHCb detector at √s=7 and 8 TeV, corresponding to integrated luminosities of 1 fb−1 and 2 fb−1 respectively. Within the Standard Model the results constrain the effective electroweak mixing angle to be (Formula presented).where the first uncertainty is statistical, the second systematic and the third theoretical. This result is in agreement with the current world average, and is one of the most precise determinations at hadron colliders to date.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of the forward-backward asymmetry in Z/γ∗ → μ+μ− decays and determination of the effective weak mixing angle. JOURNAL OF HIGH ENERGY PHYSICS, 2015(11), 1-19 [10.1007/JHEP11(2015)190].

Measurement of the forward-backward asymmetry in Z/γ∗ → μ+μ− decays and determination of the effective weak mixing angle

Belloli, N;Borsato, M;Calvi, M;Carniti, P;Cassina, L;Gotti, C;Grillo, L;Khanji, B;Martinelli, M;Petruzzo, M;
2015

Abstract

The forward-backward charge asymmetry for the process (Formula presented). is measured as a function of the invariant mass of the dimuon system. Measurements are performed using proton proton collision data collected with the LHCb detector at √s=7 and 8 TeV, corresponding to integrated luminosities of 1 fb−1 and 2 fb−1 respectively. Within the Standard Model the results constrain the effective electroweak mixing angle to be (Formula presented).where the first uncertainty is statistical, the second systematic and the third theoretical. This result is in agreement with the current world average, and is one of the most precise determinations at hadron colliders to date.
Articolo in rivista - Articolo scientifico
Electroweak interaction; Forward physics; Hadron-Hadron Scattering; Nuclear and High Energy Physics
English
2015
2015
11
1
19
190
open
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of the forward-backward asymmetry in Z/γ∗ → μ+μ− decays and determination of the effective weak mixing angle. JOURNAL OF HIGH ENERGY PHYSICS, 2015(11), 1-19 [10.1007/JHEP11(2015)190].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/187884
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