Journal article
Measurement of the W boson helicity fractions in the decays of top quark pairs to lepton + jets final states produced in pp collisions at s√= 8TeV
Physics letters. B, Vol.762, pp.512-534
11/10/2016
DOI: 10.1016/j.physletb.2016.10.007
Abstract
The W boson helicity fractions from top quark decays in t (t) over bar events are measured using data from proton-proton collisions at a centre-of-mass energy of 8 TeV. The data were collected in 2012 with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.8 fb(-1). Events are reconstructed with either one muon or one electron, along with four jets in the final state, with two of the jets being identified as originating from b quarks. The measured helicity fractions from both channels are combined, yielding F-0 = 0.681 +/- 0.012 (stat) +/- 0.023 (syst), F-L = 0.323 +/- 0.008 (stat) +/- 0.014 (syst), and F-R = -0.004 +/- 0.005 (stat) +/- 0.014 (syst) for the longitudinal, left-, and right-handed components of the helicity, respectively. These measurements of the W boson helicity fractions are the most accurate to date and they agree with the predictions from the standard model.
Details
- Title: Subtitle
- Measurement of the W boson helicity fractions in the decays of top quark pairs to lepton + jets final states produced in pp collisions at s√= 8TeV
- Creators
- Vardan KhachatryanFelix BachmairLukas BäniLorenzo BianchiniBruno CasalGünther DissertoriMichael DittmarMauro DonegàPhilipp EllerChristoph GrabConstantin HeideggerDmitry HitsJan HossGregor KasieczkaPierre LecomteWerner LustermannBoris ManganoMario MasciovecchioMaren T MeinhardDaniel MeisterFrancesco MicheliPasquale MusellaFrancesca Nessi-TedaldiFrancesco PandolfiJoosep PataFelicitas PaussGaël PerrinLuca PerrozziMilena QuittnatMarco RossiniMyriam SchönenbergerAndrey StarodumovMaiko TakahashiVittorio R TavolaroKonstantinos TheofilatosRainer WallnyCMS Collaboration
- Contributors
- Y Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.762, pp.512-534
- DOI
- 10.1016/j.physletb.2016.10.007
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier B.V
- Grant note
- DOI: 10.13039/501100003413, name: BMWFW; DOI: 10.13039/501100002428, name: FWF; DOI: 10.13039/501100002661, name: FNRS; DOI: 10.13039/501100003130, name: FWO; DOI: 10.13039/501100003593, name: CNPq; DOI: 10.13039/501100002322, name: CAPES; DOI: 10.13039/501100004586, name: FAPERJ; DOI: 10.13039/501100001807, name: FAPESP; DOI: 10.13039/501100005992, name: MES; DOI: 10.13039/100012470, name: CERN; DOI: 10.13039/501100002367, name: CAS; DOI: 10.13039/501100002855, name: MOST; DOI: 10.13039/501100001809, name: NSFC; DOI: 10.13039/100007637, name: COLCIENCIAS; name: MSES; name: CSF; DOI: 10.13039/501100001810, name: RPF; name: MoER; name: ERC IUT; DOI: 10.13039/501100008530, name: ERDF; DOI: 10.13039/501100002341, name: Academy of Finland; name: MEC; name: HIP; DOI: 10.13039/501100006489, name: CEA; name: CNRS/IN2P3; DOI: 10.13039/501100002347, name: BMBF; DOI: 10.13039/501100001659, name: DFG; name: HGF; DOI: 10.13039/501100003448, name: GSRT; DOI: 10.13039/501100003549, name: OTKA; name: NIH; DOI: 10.13039/501100001502, name: DAE; DOI: 10.13039/501100001409, name: DST; DOI: 10.13039/501100006115, name: IPM; DOI: 10.13039/501100001602, name: SFI; DOI: 10.13039/501100004007, name: INFN; DOI: 10.13039/501100003621, name: MSIP; DOI: 10.13039/501100003725, name: NRF; name: LAS; name: MOE; DOI: 10.13039/501100004386, name: UM; DOI: 10.13039/501100006348, name: BUAP; DOI: 10.13039/501100008688, name: CINVESTAV; DOI: 10.13039/501100003141, name: CONACYT; name: LNS; DOI: 10.13039/100010096, name: SEP; name: UASLP-FAI; DOI: 10.13039/501100003524, name: MBIE; DOI: 10.13039/501100008689, name: PAEC; name: MSHE; name: NSC; DOI: 10.13039/501100001871, name: FCT; DOI: 10.13039/501100003822, name: JINR; name: MON; DOI: 10.13039/501100008687, name: RosAtom; DOI: 10.13039/501100002674, name: RAS; DOI: 10.13039/501100002261, name: RFBR; name: MESTD; DOI: 10.13039/501100007136, name: SEIDI; name: CPAN; name: Swiss Funding Agencies; name: MST; name: ThEPCenter; DOI: 10.13039/100016907, name: IPST; name: STAR; DOI: 10.13039/501100004192, name: NSTDA; DOI: 10.13039/501100004410, name: TÜBITAK; DOI: 10.13039/100010440, name: TAEK; DOI: 10.13039/501100004742, name: NASU; DOI: 10.13039/501100008690, name: SFFR; DOI: 10.13039/501100000271, name: STFC; DOI: 10.13039/100000015, name: DOE; DOI: 10.13039/100000001, name: NSF; name: Marie-Curie programme; DOI: 10.13039/501100000781, name: European Research Council; name: EPLANET; DOI: 10.13039/501100004117, name: Leventis Foundation; DOI: 10.13039/100000879, name: Alfred P. Sloan Foundation; DOI: 10.13039/100005156, name: Alexander von Humboldt Foundation; name: Belgian Federal Science Policy Office; DOI: 10.13039/501100003134, name: FRIA; DOI: 10.13039/501100003132, name: Agentschap voor Innovatie door Wetenschap en Technologie; DOI: 10.13039/501100001823, name: Ministry of Education, Youth and Sports; name: Council of Science and Industrial Research; DOI: 10.13039/501100001870, name: Foundation for Polish Science; DOI: 10.13039/501100004569, name: Ministry of Science and Higher Education; name: National Science Center; name: EU-ESF and the Greek NSRF; DOI: 10.13039/100008982, name: Qatar National Research Fund; name: Programa Clarín-COFUND del Principado de Asturias; name: Rachadapisek Sompot Fund for Postdoctoral Fellowship; DOI: 10.13039/501100002873, name: Chulalongkorn University; name: Chulalongkorn Academic into Its 2nd Century Project Advancement Project; DOI: 10.13039/100000928, name: Welch Foundation, award: C-1845
- Language
- English
- Date published
- 11/10/2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199925002771
Metrics
8 Record Views