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Measurement of the w-boson mass in pp collisions at root s=7 tev with the atlas detector

文献类型:期刊论文

作者Aaboud, M.192,193; Aad, G.123,124; Abbott, B.154; Abdallah, J.11; Abdinov, O.; Abeloos, B.158; Abidi, S. H.224; AbouZeid, O. S.196; Abraham, N. L.213; Abramowicz, H.217
刊名European physical journal c
出版日期2018-02-06
卷号78期号:2页码:61
ISSN号1434-6044
DOI10.1140/epjc/s10052-017-5475-4
通讯作者Aaboud, m.()
英文摘要A measurement of the mass of the w boson is presented based on proton-proton collision data recorded in 2011 at a centre-of-mass energy of 7 tev with the atlas detector at the lhc, and corresponding to 4.6 fb(-1) of integrated luminosity. the selected data sample consists of 7.8 x 10(6) candidates in the w -> mu nu channel and 5.9 x 10(6) candidates in the w -> e nu channel. the w-boson mass is obtained from template fits to the reconstructed distributions of the charged lepton transverse momentum and of the w boson transverse mass in the electron and muon decay channels, yielding m(w) = 80370 +/- 7 (stat.) +/- 11(exp. syst.) +/- 14 (mod. syst.) mev = 80370 +/- 19 mev, where the first uncertainty is statistical, the second corresponds to the experimental systematic uncertainty, and the third to the physics-modelling systematic uncertainty. a measurement of the mass difference between the w+ and w- bosons yields m(w+) - m(w-) = -29 +/- 28 mev.
WOS关键词TRANSVERSE-MOMENTUM RESUMMATION ; CERN PBARP COLLIDER ; DRELL-YAN PROCESSES ; LEPTON PAIRS ; ELECTROWEAK MEASUREMENTS ; BROKEN SYMMETRIES ; HADRON-COLLISIONS ; WEAK-INTERACTIONS ; MONTE-CARLO ; WIDTH
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
出版者SPRINGER
WOS记录号WOS:000424385500005
URI标识http://www.irgrid.ac.cn/handle/1471x/2177996
专题高能物理研究所
通讯作者Aaboud, M.
作者单位1.Univ Adelaide, Dept Phys, Adelaide, SA, Australia
2.SUNY Albany, Dept Phys, Albany, NY 12222 USA
3.Univ Alberta, Dept Phys, Edmonton, AB, Canada
4.Ankara Univ, Dept Phys, Ankara, Turkey
5.Istanbul Aydin Univ, Istanbul, Turkey
6.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
7.CNRS, LAPP, IN2P3, Annecy Le Vieux, France
8.Univ Savoie Mt Blanc, Annecy Le Vieux, France
9.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
10.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
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GB/T 7714
Aaboud, M.,Aad, G.,Abbott, B.,et al. Measurement of the w-boson mass in pp collisions at root s=7 tev with the atlas detector[J]. European physical journal c,2018,78(2):61.
APA Aaboud, M..,Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,...&Hanagaki, K..(2018).Measurement of the w-boson mass in pp collisions at root s=7 tev with the atlas detector.European physical journal c,78(2),61.
MLA Aaboud, M.,et al."Measurement of the w-boson mass in pp collisions at root s=7 tev with the atlas detector".European physical journal c 78.2(2018):61.

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