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Measurement of the W-pair cross-section and of the W mass in e(+)e(-) interactions at 172 GeV

Abstract:

From a data sample of 9.98 pb-1 integrated luminosity, collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the branching fraction Br(W → qq̄) was measured to be 0.660+0.036-0.037 (stat.) ± 0.009(syst.) and the cross-section for the doubly resonant process e+e- → W+W- to be 11.58+1.44-1.35 (stat.) ± 0.32(syst.) pb. The mass of the W boson, obtained from direct reconstruction of the invariant mass of the fermion pairs in the deca...

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Publication status:
Published

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Publisher copy:
10.1007/s100520050163

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Journal:
EUROPEAN PHYSICAL JOURNAL C
Volume:
2
Issue:
4
Pages:
581-595
Publication date:
1998-05-01
DOI:
ISSN:
1434-6044
Language:
English
Pubs id:
pubs:21052
UUID:
uuid:3bb6eec4-df98-4008-97de-1ccededc182a
Local pid:
pubs:21052
Source identifiers:
21052
Deposit date:
2012-12-19

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