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Measurement of the<i>W</i>boson mass

Braden Keim AbbottNew York University, New York, New York 10003M. ĀboliņšMichigan State University, East Lansing, Michigan 48824B. S. AcharyaTata Institute of Fundamental Research, Colaba, Mumbai 400005, IndiaИ. АдамColumbia University, New York, New York 10027D. L. AdamsRice University, Houston, Texas 77005Mark Raymond AdamsUniversity of Illinois at Chicago, Chicago, Illinois 60607S. AhnFermi National Accelerator Laboratory, Batavia, Illinois 60510H. AiharaLawrence Berkeley National Laboratory and University of California, Berkeley, CaliforniaG. A. AlvesLAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, BrazilN. AmosUniversity of Michigan, Ann Arbor, Michigan 48109E. W. AndersonIowa State University, Ames, Iowa 50011R. AsturStony Brook UniversityM. M. BaarmandStony Brook UniversityA. BadenUniversity of Maryland, College Park, Maryland 20742V. BalamuraliUniversity of Notre Dame, Notre Dame, Indiana 46556J. BalderstonUniversity of Hawaii SystemB. Baldin'Brown University, Providence, Rhode Island 02918Sw. BanerjeeTata Institute of Fundamental Research, Colaba, Mumbai 400005, IndiaJ. BantlyBrown University, Providence, Rhode Island 02912Elettra BarberisUniversity of California, BerkeleyJ. F. BartlettFermi National Accelerator Laboratory, Batavia, Illinois 60510K. BaziziUniversity of Rochester, Rochester, New York 14627A. Belyaev"LAFEX,S. B. BeriCentro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, BrazilI. A. BertramNorthwestern University, Evanston, Illinois 60208V. A. BezzubovInstitute for High Energy Physics, 142-284 Protvino, RussiaP. C. BhatFermi National Accelerator Laboratory, Batavia, Illinois 60510V. BhatnagarPanjab UniversityM. BhattacharjeeStony Brook UniversityN. N. BiswasUniversity of Notre Dame, Notre Dame, Indiana 46556G. BlazeyNorthern Illinois University, DeKalb, Illinois 60115S. BlessingFlorida State University, Tallahassee, Florida 32306P. C. BloomUniversity of California, Davis, California 95616A. BoehnleinFermi National Accelerator Laboratory, Batavia, Illinois 60510N. I. BojkoInstitute for High Energy Physics, 142-284 Protvino, RussiaF. BorcherdingFermi National Accelerator Laboratory, Batavia, Illinois 60510C. BoswellUniversity of California, Riverside, California 92521A. BrandtFermi National Accelerator Laboratory, Batavia, Illinois 60510R. BrockMichigan State University, East Lansing, Michigan 48824A. BrossFermi National Accelerator Laboratory, Batavia, Illinois 60510D. BuchholzNorthwestern University, Evanston, Illinois 60208В. С. БуртовойInstitute for High Energy Physics, 142-284 Protvino, RussiaJ. M. ButlerW. CarvalhoLAFEX, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, BrazilD. CaseyUniversity of Rochester, Rochester, New York 14627Z. CasilumState University of New York, Stony Brook, New York 11794H. Castilla-ValdezCINVESTAV, Mexico City, MexicoD. ChakrabortyState University of New York, Stony Brook, New York 11794S.-M. ChangNortheastern University, Boston, Massachusetts 02115S. V. ChekulaevInstitute for High Energy Physics, 142-284 Protvino, RussiaL.-P. ChenLawrence Berkeley National Laboratory and University of California, Berkeley, California 94720W. ChenStony Brook UniversityS. ChoiSeoul National University, Seoul, KoreaS. ChopraUniversity of Michigan, Ann Arbor, Michigan 48109B. C. ChoudharyUniversity of California, Riverside, California 92521J. H. ChristensonFermi National Accelerator Laboratory, Batavia, Illinois 60510M. ChungUniversity of Illinois at Chicago, Chicago, Illinois 60607D. R. ClaesUniversity of Nebraska, Lincoln, Nebraska 68588A. R. ClarkLawrence Berkeley National Laboratory and University of California, Berkeley, CaliforniaW. G. CobauUniversity of Maryland, College Park, Maryland 20742J. CochranUniversity of California, Riverside, California 92521L. ConeyUniversity of Notre Dame, Notre Dame, Indiana 46556W. E. CooperFermi National Accelerator Laboratory, Batavia, Illinois 60510C. CretsingerUniversity of Rochester, Rochester, New York 14627D. Cullen-VidalBrown University, Providence, Rhode Island 02912M.A.C. CummingsNorthern Illinois University, DeKalb, Illinois 60115D. CuttsBrown University, Providence, Rhode Island 02912O. I. DahlLawrence Berkeley National Laboratory and University of California, Berkeley, California 94720K. DavisUniversity of Arizona, Tucson, Arizona 85721K. DeUniversity of Texas, Arlington, Texas 76019K. Del SignoreUniversity of Michigan, Ann Arbor, Michigan 48109M. DemarteauFermi National Accelerator Laboratory, Batavia, Illinois 60510D. DenisovFermi National Accelerator Laboratory, Batavia, Illinois 60510S. P. DenisovInstitute for High Energy Physics, 142-284 Protvino, RussiaH. T. DiehlFermi National Accelerator Laboratory, Batavia, Illinois 60510M. DiesburgFermi National Accelerator Laboratory, Batavia, Illinois 60510G. Di LoretoMichigan State University, East Lansing, Michigan 48824Patrick DraperUniversity of Texas, Arlington, Texas 76019Y. DucrosCEA, DAPNIA/Service de Physique des Particules, CE-SACLAY, Gif-sur-Yvette, FranceL. DudkoMoscow State University, Moscow, RussiaS.R. DugadTata Institute of Fundamental Research, Colaba, Mumbai 400005, IndiaD. EdmundsMichigan State University, East Lansing, Michigan 48824J. EllisonUniversity of California, Riverside, California 92521V. D. ElviraStony Brook UniversityR. EngelmannStony Brook UniversityS. C. EnoUniversity of Maryland, College Park, Maryland 20742G. EppleyRice University, Houston, Texas 77005P. ErmolovMoscow State University, Moscow, RussiaO. V. EroshinInstitute for High Energy Physics, 142-284 Protvino, RussiaV. N. EvdokimovInstitute for High Energy Physics, 142-284 Protvino, RussiaT. FahlandUniversity of California, Irvine, California 92697M. FatygaUniversity of Rochester, Rochester, New York 14627S. FehérFermi National Accelerator Laboratory, Batavia, Illinois 60510D. FeinUniversity of Arizona, Tucson, Arizona 85721T. FerbelUniversity of Rochester, Rochester, New York 14627G. FinocchiaroStony Brook UniversityH. E. FiskFermi National Accelerator Laboratory, Batavia, Illinois 60510Y. FisyakUniversity of California, Davis, California 95616E. FlattumFermi National Accelerator Laboratory, Batavia, Illinois 60510G. E. FordenUniversity of Arizona, Tucson, Arizona 85721

1998en

ABI

Annotatsiya

We present a measurement of the W boson mass using data collected by the D0 experiment at the Fermilab Tevatron during 1994--1995. We identify W bosons by their decays to $e\ensuremath{\nu}$ final states. We extract the W mass ${M}_{W}$ by fitting the transverse mass and transverse electron momentum spectra from a sample of 28 323 $\stackrel{\ensuremath{\rightarrow}}{W}e\ensuremath{\nu}$ decay candidates. We use a sample of 3563 dielectron events, mostly due to $\stackrel{\ensuremath{\rightarrow}}{Z}\mathrm{ee}$ decays, to constrain our model of the detector response. From the transverse mass fit we measure ${M}_{W}=80.44\ifmmode\pm\else\textpm\fi{}0.10(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.07(\mathrm{syst})\mathrm{}$ GeV. Combining this with our previously published result from data taken in 1992--1993, we obtain ${M}_{W}=80.43\ifmmode\pm\else\textpm\fi{}0.11\mathrm{GeV}.$

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DOI: 10.1103/physrevd.58.092003

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