Direct measurement of the W boson width

0339409 - FZÚ 2010 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
Direct measurement of the W boson width.
Physical Review Letters. Roč. 103, č. 23 (2009), 231802/1-23180/7. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT LC527; GA MŠMT LA08047
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: D0 * Tevatron * boson
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.328, rok: 2009

We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W->enu candidates selected in 1 fb-1 of data collected with the D0 detector at the Fermilab Tevatron collider in ppbar collisions at sqrt{s}=1.96 TeV. 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.
Trvalý link: http://hdl.handle.net/11104/0182945