Publications [#306561] of Ayana T. Arce

Papers Accepted
  1. Aad, G; Abbott, B; Abdallah, J; Khalek, SA; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS; Adamczyk, L; Adams, DL; Addy, TN; Adelman, J; Aderholz, M; Adomeit, S; Adragna, P; Adye, T; Aefsky, S; Aguilar-Saavedra, JA; Aharrouche, M; Ahlen, SP; Ahles, F; Ahmad, A; Ahsan, M; Aielli, G; Akdogan, T; Åkesson, TPA; Akimoto, G; Akimov, AV; Akiyama, A; Alam, MS; Alam, MA; Albert, J; Albrand, S; Aleksa, M; Aleksandrov, IN et al., Measurement of τ polarization in W→τν decays with the ATLAS detector in pp collisions at √s = 7 TeV, The European Physical Journal C - Particles and Fields, vol. 72 no. 7 (2012), pp. 1-21 [doi] .

    In this paper, a measurement of τ polarization in W→τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb-1, were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is Pτ= -1.06 ±0.04 (stat)+0.05-0.07, in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [-1,-0. 91]. Measurements of τ polarization have not previously been made at hadron colliders. © 2012 CERN for the benefit of the ATLAS collaboration.