Events with isolated leptons and missing transverse momentum and measurement of W production at HERA


Aaron F., Alexa C., Andreev V., Antunovic B., Aplin S., Asmone A., ...Daha Fazla

European Physical Journal C, cilt.64, sa.2, ss.251-271, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 64 Sayı: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1140/epjc/s10052-009-1160-6
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.251-271
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

Events with high energy isolated electrons, muons or tau leptons and missing transverse momentum are studied using the full e ± p data sample collected by the H1 experiment at HERA, corresponding to an integrated luminosity of 474 pb -1. Within the Standard Model, events with isolated leptons and missing transverse momentum mainly originate from the production of single W bosons. The total single W boson production cross section is measured as 1.14±0.25 (stat.)±0.14 (sys.) pb, in agreement with the Standard Model expectation. The data are also used to establish limits on the WW γ gauge couplings and for a measurement of the W boson polarisation. © 2009 Springer-Verlag / Società Italiana di Fisica.