Published December 8, 1988 | Version v1
Journal article

Measurement of the strong coupling constant αs from a study of W bosons produced in association with jets

  • 1. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire
  • 2. European Organization for Nuclear Research, Geneva (Switzerland)
  • 3. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
  • 4. Perugia Univ. (Italy). Dipartimento di Fisica
  • 5. Heidelberg Univ. (Germany, F.R.). Inst. fuer Hochenergiephysik
  • 6. Bern Univ. (Switzerland). Lab. fuer Hochenergiephysik
  • 7. Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
  • 8. Pisa Univ. (Italy). Dipt. di Fisica
  • 9. Istituto Nazionale di Fisica Nucleare, Pavia (Italy)
  • 10. Pavia Univ. (Italy). Dipt. di Fisica Nucleare e Teorica
  • 11. Niels Bohr Inst., Copenhagen (Denmark)
  • 12. Melbourne Univ., Parkville (Australia). School of Physics

Description

The UA2 experiment at the CERN anti pp Collider has identified a total sample of 251 W → eν events. Among this sample 221 events are found without jets and 29 with one jet. The yield of one-jet events relative to that of zero-jet events provides a measurement of the strong coupling constant: αs(MW2) = 0.13±0.03(stat)±0.03(syst1)±0.02(syst2), where syst1 represents the experimental systematic error and syst2 is an estimate of the theoretical uncertainty. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
215
Journal Issue
1
Series
Phys. Lett., B.
Journal Page Range
175-185
ISSN
0370-2693
CODEN
PYLBA

Optional Information

Collaborations
UA2 Collaboration.