Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV
Abstract Measurements of the associated production of a W boson and a charm ( $${\text {c}}$$ c ) quark in proton–proton collisions at a centr...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2022
|
| Online Access: | https://hdl.handle.net/1721.1/146837 |
| _version_ | 1826207811007152128 |
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| author | Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Madlener, T. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Madlener, T. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | Abstract
Measurements of the associated production of a W boson and a charm (
$${\text {c}}$$
c
) quark in proton–proton collisions at a centre-of-mass energy of 8
$$\,\text {TeV}$$
TeV
are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7
$$\,\text {fb}^{-1}$$
fb
-
1
collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction
$$\sigma (\text {p}\text {p}\rightarrow \text {W}+ {\text {c}}+ \text {X}) {\mathcal {B}}(\text {W}\rightarrow \ell \upnu )$$
σ
(
pp
→
W
+
c
+
X
)
B
(
W
→
ℓ
ν
)
, where
$$\ell = \text {e}$$
ℓ
=
e
or
$$\upmu $$
μ
, and the cross section ratio
$$\sigma (\text {p}\text {p}\rightarrow {{\text {W}}^{+} + \bar{{\text {c}}} + \text {X}}) / \sigma (\text {p}\text {p}\rightarrow {{\text {W}}^{-} + {\text {c}}+ \text {X}})$$
σ
(
pp
→
W
+
+
c
¯
+
X
)
/
σ
(
pp
→
W
-
+
c
+
X
)
are measured in a fiducial volume and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed. |
| first_indexed | 2024-09-23T13:55:19Z |
| format | Article |
| id | mit-1721.1/146837 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:55:19Z |
| publishDate | 2022 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1468372023-12-22T18:45:07Z Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Madlener, T. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. Massachusetts Institute of Technology. Department of Physics Abstract Measurements of the associated production of a W boson and a charm ( $${\text {c}}$$ c ) quark in proton–proton collisions at a centre-of-mass energy of 8 $$\,\text {TeV}$$ TeV are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7 $$\,\text {fb}^{-1}$$ fb - 1 collected by the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm quark jets are selected using distinctive signatures of charm hadron decays. The product of the cross section and branching fraction $$\sigma (\text {p}\text {p}\rightarrow \text {W}+ {\text {c}}+ \text {X}) {\mathcal {B}}(\text {W}\rightarrow \ell \upnu )$$ σ ( pp → W + c + X ) B ( W → ℓ ν ) , where $$\ell = \text {e}$$ ℓ = e or $$\upmu $$ μ , and the cross section ratio $$\sigma (\text {p}\text {p}\rightarrow {{\text {W}}^{+} + \bar{{\text {c}}} + \text {X}}) / \sigma (\text {p}\text {p}\rightarrow {{\text {W}}^{-} + {\text {c}}+ \text {X}})$$ σ ( pp → W + + c ¯ + X ) / σ ( pp → W - + c + X ) are measured in a fiducial volume and differentially as functions of the pseudorapidity and of the transverse momentum of the lepton from the W boson decay. The results are compared with theoretical predictions. The impact of these measurements on the determination of the strange quark distribution is assessed. 2022-12-12T14:14:22Z 2022-12-12T14:14:22Z 2022-12-05 2022-12-11T04:11:58Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146837 The European Physical Journal C. 2022 Dec 05;82(12):1094 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-022-10897-7 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ CERN for the benefit of the CMS collaboration application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Valle, A. E. D. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Madlener, T. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Templ, S. Waltenberger, W. Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title | Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title_full | Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title_fullStr | Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title_full_unstemmed | Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title_short | Measurements of the associated production of a W boson and a charm quark in proton–proton collisions at $$\sqrt{s}=8\,\text {TeV} $$ s = 8 TeV |
| title_sort | measurements of the associated production of a w boson and a charm quark in proton proton collisions at sqrt s 8 text tev s 8 tev |
| url | https://hdl.handle.net/1721.1/146837 |
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