Direct Measurement of the W Boson Width
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 23, 231802- p.Article in journal (Refereed) Published
We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W -> e nu candidate events. Data from approximately 1 fb(-1) of integrated luminosity recorded at s=1.96 TeV by the D0 detector at the Fermilab Tevatron pp collider are analyzed. We use the same methods and data sample that were used for our recently published W boson mass measurement, except for the modeling of the recoil, which is done with a new method based on a recoil library. Our result, 2.028 +/- 0.072 GeV, is in agreement with the predictions of the standard model.
Place, publisher, year, edition, pages
2009. Vol. 103, no 23, 231802- p.
IdentifiersURN: urn:nbn:se:kth:diva-72070DOI: 10.1103/PhysRevLett.103.231802ISI: 000272460200013OAI: oai:DiVA.org:kth-72070DiVA: diva2:487996
QC 201202012012-02-012012-01-312012-02-01Bibliographically approved