> Detailanzeige
Aad, Georges
[VerfasserIn];
Baltes, Lisa Marie
[VerfasserIn];
Bartels, Falk
[VerfasserIn];
Castillo, Florencia Luciana
[VerfasserIn];
Czurylo, Marta
[VerfasserIn];
Rio, Fernando del
[VerfasserIn];
Dittmeier, Sebastian
[VerfasserIn];
Dunford, Monica
[VerfasserIn];
Franchino, Silvia
[VerfasserIn];
Junkermann, Thomas
[VerfasserIn];
Klassen, Martin
[VerfasserIn];
Mkrtchyan, Tigran
[VerfasserIn];
Ott, Philipp
[VerfasserIn];
Rassloff, Damir Fabrice
[VerfasserIn];
Rodriguez Bosca, Sergi
[VerfasserIn];
Sauer, Christof
[VerfasserIn];
Schöning, André
[VerfasserIn];
Schultz-Coulon, Hans-Christian
[VerfasserIn];
Sothilingam, Varsiha
[VerfasserIn];
Stamen, Rainer
[VerfasserIn];
Starovoitov, Pavel
[VerfasserIn];
Vigani, Luigi
[VerfasserIn];
Weber, Sebastian
[VerfasserIn];
Wessels, Martin
[VerfasserIn];
;
ATLAS Collaboration
Measurement of the production of a W boson in association with a charmed hadron in pp collisions at √s=13 TeV with the ATLAS detector
Teilen
Literatur-
verwaltung
Direktlink
Zur
Merkliste
Lösche von
Merkliste
Per Email teilen
Auf Twitter teilen
Auf Facebook teilen
Per Whatsapp teilen
- Medientyp: E-Artikel
- Titel: Measurement of the production of a W boson in association with a charmed hadron in pp collisions at √s=13 TeV with the ATLAS detector
- Beteiligte: Aad, Georges [VerfasserIn]; Baltes, Lisa Marie [VerfasserIn]; Bartels, Falk [VerfasserIn]; Castillo, Florencia Luciana [VerfasserIn]; Czurylo, Marta [VerfasserIn]; Rio, Fernando del [VerfasserIn]; Dittmeier, Sebastian [VerfasserIn]; Dunford, Monica [VerfasserIn]; Franchino, Silvia [VerfasserIn]; Junkermann, Thomas [VerfasserIn]; Klassen, Martin [VerfasserIn]; Mkrtchyan, Tigran [VerfasserIn]; Ott, Philipp [VerfasserIn]; Rassloff, Damir Fabrice [VerfasserIn]; Rodriguez Bosca, Sergi [VerfasserIn]; Sauer, Christof [VerfasserIn]; Schöning, André [VerfasserIn]; Schultz-Coulon, Hans-Christian [VerfasserIn]; Sothilingam, Varsiha [VerfasserIn]; Stamen, Rainer [VerfasserIn]; Starovoitov, Pavel [VerfasserIn]; Vigani, Luigi [VerfasserIn]; Weber, Sebastian [VerfasserIn]; Wessels, Martin [VerfasserIn]; Zinßer, Joachim [VerfasserIn]
-
Erschienen:
14 August 2023
- Erschienen in: Physical review ; 108(2023), 3, Artikel-ID 032012, Seite 1-54
- Sprache: Englisch
- DOI: 10.1103/PhysRevD.108.032012
- ISSN: 2470-0029
- Identifikator:
- Entstehung:
-
Anmerkungen:
Im Titel steht der Buchstabe s unter dem Wurzelsymbol
*ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und 2874 weitere Personen]
- Beschreibung: The production of a W boson in association with a single charm quark is studied using 140 fb−1 of √s=13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The charm quark is tagged by the presence of a charmed hadron reconstructed with a secondary-vertex fit. The W boson is reconstructed from the decay to either an electron or a muon and the missing transverse momentum present in the event. The charmed mesons reconstructed are D+→K−π+π+ and D*+→D0π+→(K−π+)π+ and the charge conjugate decays in the fiducial regions where pT(e,μ)>30 GeV, |η(e,μ)|<2.5, pT(D(*))>8 GeV, and |η(D(*))|<2.2. The integrated and normalized differential cross sections as a function of the pseudorapidity of the lepton from the W boson decay, and of the transverse momentum of the charmed hadron, are extracted from the data using a profile likelihood fit. The measured total fiducial cross sections are σOS-SSfid(W−+D+)=50.2±0.2(stat)+2.4−2.3(syst) pb, σOS-SSfid(WD−)=48.5±0.2(stat)+2.3−2.2(syst) pb, σOS-SSfid(W−+D*+)=51.1±0.4(stat)+1.9−1.8(syst) pb, and σOS-SSfid(WD*−)=50.0±0.4(stat)+1.9−1.8(syst) pb. Results are compared with the predictions of next-to-leading-order quantum chromodynamics calculations performed using state-of-the-art parton distribution functions. Additionally, the ratio of charm to anticharm production cross sections is studied to probe the s−¯s quark asymmetry. The ratio is found to be R±c=0.971±0.006(stat)±0.011(syst). The ratio and cross-section measurements are consistent with the predictions obtained with parton distribution function sets that have a symmetric s−¯s sea, indicating that any s−¯s asymmetry in the Bjorken-x region relevant for this measurement is small.
- Zugangsstatus: Freier Zugang