Indirect measurement of sin2θw (MW ) using e+e- pairs in the Z-boson region with p̄p collisions at a center-of-momentum energy of 1.96 TeV
Physical Review D - Particles, Fields, Gravitation and Cosmology 88:7 (2013)
Abstract:
Drell-Yan lepton pairs are produced in the process p̄p→e +e-+X through an intermediate γ*/Z boson. The lepton angular distributions are used to provide information on the electroweak-mixing parameter sin2θw via its observable effective-leptonic sin2θw, or sinâ¡2θefflept. A new method to infer sin 2θw or, equivalently, the W-boson mass MW in the on-shell scheme, is developed and tested using a previous CDF Run II measurement of angular distributions from electron pairs in a sample corresponding to 2.1 fb-1 of integrated luminosity from p̄p collisions at a center-of-momentum energy of 1.96 TeV. The value of sinâ¡2θefflept is found to be 0.2328±0.0011. Within a specified context of the standard model, this results in sin 2θw=0.2246±0.0011, which corresponds to a W-boson mass of 80.297±0.055 GeV/c2, in agreement with previous determinations in electron-position collisions and at the Tevatron collider. © 2013 American Physical Society.Erratum: Indirect measurement of sin2θW (MW) using e+e- pairs in the Z-boson region with pp¯ collisions at a center-of-momentum energy of 1.96 TeV [Phys. Rev. D 88, 072002 (2013)]
Physical Review D American Physical Society (APS) 88:7 (2013) 079905
Low Background Anti-neutrino Monitoring with an Innovative Composite Solid Scintillator Detector
Institute of Electrical and Electronics Engineers (IEEE) (2013) 1-7
Measurement of the high-mass Drell-Yan differential cross-section in pp collisions at s=7TeV with the ATLAS detector
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 725:4-5 (2013) 223-242
Abstract:
© 2013 CERN. This Letter reports a measurement of the high-mass Drell-Yan differential cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. Based on an integrated luminosity of 4.9fb -1 , the differential cross-section in the Z/γ * →e + e - channel is measured with the ATLAS detector as a function of the invariant mass, m ee , in the range 116 < m ee < 1500GeV, for a fiducial region in which both the electron and the positron have transverse momentum p T > 25GeV and pseudorapidity |η| < 2.5. A comparison is made to various event generators and to the predictions of perturbative QCD calculations at next-to-next-to-leading order.Performance of a Prototype Large Area Neutron Detector Based on 6LiF:ZnS(Ag) with MPPC Read-out
Institute of Electrical and Electronics Engineers (IEEE) (2013) 1-4