Measurement of D0, D+, D [star]+ and D+s production in pp collisions at √s=5.02 TeV with ALICE
The measurements of the production of prompt $${{\mathrm{D}}^0}$$ D 0 , $${{\mathrm{D}}^+}$$ D + , $${{\mathrm{D}}^{*+}}$$ D ∗ + , and $${{\mathrm{D}}^+_{\mathrm{s}}}$$ D s + mesons in proton-proton (pp) collisions at $$\sqrt{s}=5.02~\mathrm {TeV}$$ s = 5.02 TeV with the ALICE detector at the Large...
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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
6 May 2019
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| In: |
The European physical journal. C, Particles and fields
Year: 2019, Volume: 79, Issue: 5 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-019-6873-6 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-019-6873-6 Verlag, Volltext: https://link.springer.com/article/10.1140/epjc/s10052-019-6873-6 
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| Author Notes: | ALICE Collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurement of D0, D+, D [star]+ and D+s production in pp collisions at √s=5.02 TeV with ALICE |c ALICE Collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 0 | |a * |
| 246 | 3 | 3 | |a Measurement of D zero, D plus, D star plus and D plus s production in pp collisions at square root s = 5.02 TeV with ALICE |
| 246 | 3 | 3 | |a Measurement of D 0, D +, D star + and D + s production in pp collisions at root square s = 5.02 TeV with ALICE |
| 264 | 1 | |c 6 May 2019 | |
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| 500 | |a Im Titel steht der Buchstabe s unter dem Wurzelsymbol | ||
| 500 | |a Im Titel sind "0", "star" und "+" hochgestellt | ||
| 500 | |a Bei "D+s" ist das Zeichen "+" hoch-, der Buchstabe "s" tiefgestellt | ||
| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, M.C. Danisch, V. Feuillard, P. Glässel, J. Kim, M. Kim, M.K. Köhler, A. Ohlson, Y. Pachmayer, K. Reygers, A. Schmah, R. Schicker, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und weitere] | ||
| 500 | |a Gesehen am 17.02.2020 | ||
| 520 | |a The measurements of the production of prompt $${{\mathrm{D}}^0}$$ D 0 , $${{\mathrm{D}}^+}$$ D + , $${{\mathrm{D}}^{*+}}$$ D ∗ + , and $${{\mathrm{D}}^+_{\mathrm{s}}}$$ D s + mesons in proton-proton (pp) collisions at $$\sqrt{s}=5.02~\mathrm {TeV}$$ s = 5.02 TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity ( $$|y|<0.5$$ | y | < 0.5 ) via their hadronic decay channels $$\mathrm{D}^0 \rightarrow {\mathrm{K}}^-\pi ^+$$ D 0 → K - π + , $$\mathrm{D}^+\rightarrow {\mathrm{K}}^-\pi ^+\pi ^+$$ D + → K - π + π + , $${\mathrm{D}}^{*+} \rightarrow {\mathrm{D}}^0 \pi ^+ \rightarrow {\mathrm{K}}^- \pi ^+ \pi ^+$$ D ∗ + → D 0 π + → K - π + π + , $${{\mathrm{D}}^{+}_{\mathrm{s}}\rightarrow \phi \pi ^+\rightarrow {\mathrm{K}}^{+} {\mathrm{K}}^{-} \pi ^{+}}$$ D s + → ϕ π + → K + K - π + , and their charge conjugates. The production cross sections were measured in the transverse momentum interval $$0<36~\mathrm {GeV}/c$$ 0 < p T < 36 GeV / c for $${{\mathrm{D}}^0}$$ D 0 , $$1<36~\mathrm {GeV}/c$$ 1 < p T < 36 GeV / c for $${{\mathrm{D}}^+}$$ D + and $${{\mathrm{D}}^{*+}}$$ D ∗ + , and in $$2<24~\mathrm {GeV}/c$$ 2 < p T < 24 GeV / c for $${{\mathrm{D}}^+_{\mathrm{s}}}$$ D s + mesons. Thanks to the higher integrated luminosity, an analysis in finer $$p_{\mathrm{T}}$$ p T bins with respect to the previous measurements at $$\sqrt{s}=7~\mathrm {TeV}$$ s = 7 TeV was performed, allowing for a more detailed description of the cross-section $$p_{\mathrm{T}}$$ p T shape. The measured $$p_{\mathrm{T}}$$ p T -differential production cross sections are compared to the results at $$\sqrt{s}=7$$ s = 7 TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at $$\sqrt{s}=5.02~\mathrm {TeV}$$ s = 5.02 TeV . This measurement will allow for a more accurate determination of the nuclear modification factor in p-Pb and Pb-Pb collisions performed at the same nucleon-nucleon centre-of-mass energy. | ||
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