TY - JOUR
T1 - W Production and the Search for Events with an Isolated High-Energy Lepton and Missing Transverse Momentum at HERA
AU - ZEUS Collaboration
AU - Mattingly, Margarita C. K.
PY - 2000/1/6
Y1 - 2000/1/6
N2 - A search for the leptonic decays of W bosons produced in the reaction e+ p → e+ W± X at a centre-of-mass energy of 300GeV has been performed with the ZEUS detector at HERA using an integrated luminosity of 47.7 pb-1. Three events consistent with W → eν decay are found, giving a cross section estimate of 0.9+10 -07±0.2 pb, in good agreement with the Standard Model prediction. The corresponding 95% C.L. upper limit on the cross section is 3.3 pb. A search for the decay W → μν has a smaller selection efficiency and yields no candidate events. Limits on the cross section for W production with large hadronic transverse momentum have been obtained. A search for high-transverse-momentum isolated tracks in events with large missing transverse momentum yields results in good agreement with Standard Model expectations, in contrast to a recent report by the H1 collaboration of the observation of an excess of such events. © 2000 Published by Elsevier Science B.V. All rights reserved.
AB - A search for the leptonic decays of W bosons produced in the reaction e+ p → e+ W± X at a centre-of-mass energy of 300GeV has been performed with the ZEUS detector at HERA using an integrated luminosity of 47.7 pb-1. Three events consistent with W → eν decay are found, giving a cross section estimate of 0.9+10 -07±0.2 pb, in good agreement with the Standard Model prediction. The corresponding 95% C.L. upper limit on the cross section is 3.3 pb. A search for the decay W → μν has a smaller selection efficiency and yields no candidate events. Limits on the cross section for W production with large hadronic transverse momentum have been obtained. A search for high-transverse-momentum isolated tracks in events with large missing transverse momentum yields results in good agreement with Standard Model expectations, in contrast to a recent report by the H1 collaboration of the observation of an excess of such events. © 2000 Published by Elsevier Science B.V. All rights reserved.
UR - https://digitalcommons.andrews.edu/pubs/2662
U2 - 10.1016/S0370-2693(99)01358-1
DO - 10.1016/S0370-2693(99)01358-1
M3 - Article
VL - 471
SP - 411
EP - 428
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 4
ER -