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- Title:
- Direct Measurement of the W Boson Width
- Abazov, V. M.
- Abbott, B.
- Abolins, M.
- Acharya, B. S.
- Adams, M.
- Adams, T.
- Aguilo, E.
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- Hauptman, J. M.
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- Demarteau, M.
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- Novaes, Sérgio Ferraz
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- Diehl, H. T.
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- Ripp-Baudot, I.
- Rizatdinova, F.
- Bassler, U.
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- Royon, C.
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- Ruchti, R.
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- Bagby, L.
- Sanders, M. P.
- Sanghi, B.
- Bauer, D.
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- Heintz, U.
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- Dominguez, A.
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- Schlobohm, S.
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- Beale, S.
- Schwienhorst, R.
- Alves, G. A.
- Sekaric, J.
- Lietti, S. M.
- Severini, H.
- Joint Inst Nucl Res
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- 0031-9007
- DOE
- National Science Foundation (NSF) - USA
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- Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
- FASI
- Rosatom State Atomic Energy Corporation (ROSATOM)
- Russian Foundation for Basic Research (RFBR)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Fundação para o Desenvolvimento da UNESP (FUNDUNESP)
- DAE
- Department of Science and Technology (DST) - India
- Colciencias (Colombia)
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- Korea Science and Engineering Foundation (KOSEF)
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- CRC Program
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- Natural Sciences and Engineering Research Council of Canada (NSERC)
- WestGrid Project (Canada)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Science Foundation Ireland (SFI)
- Swedish Research Council
- Graduate Research Board
- University of Maryland (USA)
- CAS
- CNSF (China)
- 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.
- 4-Dec-2009
- Physical Review Letters. College Pk: Amer Physical Soc, v. 103, n. 23, p. 7, 2009.
- 7
- Amer Physical Soc
- http://dx.doi.org/10.1103/PhysRevLett.103.231802
- http://hdl.handle.net/11449/24526
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/24526
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