Decays of W+/- bosons, produced at LEP2, have been used to measure the \V-cs\ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for \V-cs\ were extracted both from the measured hadronic branching ratio of W+/- decays and by tagging the flavour of hadronic jets produced in W+/- decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains \V-cs\ = 0.91(-0.14)(+0.15)(stat) +/- 0.05(syst). (C) 1998 Elsevier Science B.V. All rights reserved.
Measurement of vertical bar V-cs vertical bar using W decays at LEP2 / Delphi, Collaboration; Abreu, P.; Adam, W.; Canale, Vincenzo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 439:(1998), pp. 209-224. [10.1016/S0370-2693(98)01061-2]
Measurement of vertical bar V-cs vertical bar using W decays at LEP2
CANALE, VINCENZO
1998
Abstract
Decays of W+/- bosons, produced at LEP2, have been used to measure the \V-cs\ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for \V-cs\ were extracted both from the measured hadronic branching ratio of W+/- decays and by tagging the flavour of hadronic jets produced in W+/- decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains \V-cs\ = 0.91(-0.14)(+0.15)(stat) +/- 0.05(syst). (C) 1998 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
