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Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV

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Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Costa Mezquita, María José
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Gil Botella, Inés
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Perepelitsa, V.
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Tortosa Martínez, Pablo
dc.date.accessioned	2014-03-28T14:21:30Z
dc.date.available	2014-03-28T14:21:30Z
dc.date.issued	2001
dc.identifier.citation	DELPHI Collaboration Castillo Giménez, María Victoria Cortina, E. Costa, M. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Oyanguren Campos, Arantza Perepelitsa, V. Salt Cairols, José ,Tortosa Martínez, Pablo, 2001 Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV Physics Letters B 511 2-4 159 177
dc.identifier.uri	http://hdl.handle.net/10550/33772
dc.description.abstract	A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- -> lvqq and W+W- -> qqqq channels. The W mass result for the 1998 data set is M_W = 80.387 +/- 0.087 (stat) +/- 0.034 (syst) +/- 0.017 (LEP) +/- 0.035 (FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qqqq channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI collaboration gives the result M_W = 80.359 +/- 0.074 (stat) +/- 0.032 (syst) +/- 0.017 (LEP) +/- 0.033 (FSI) GeV/c2. The combined value for the W width is \Gamma_W = 2.266 +/- 0.176 (stat) +/- 0.056 (syst) +/- 0.052 (FSI) GeV/c2.
dc.relation.ispartof	Physics Letters B, 2001, vol. 511, num. 2-4, p. 159-177
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV
dc.type	journal article	es_ES
dc.date.updated	2014-03-28T14:21:30Z
dc.identifier.doi	10.1016/S0370-2693(01)00453-1
dc.identifier.idgrec	006738
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(01)00453-1