Measurement of prompt D0, Λ+c, and Σ0,++c (2455) production in proton-proton collisions at √s=13 TeV
The pT-differential production cross sections of prompt D0, Λ+c, and Σ0,c(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at √s=13 TeV. This is the first measurement of Σ0,++c production in hadronic collisions. Assuming the same production yield for the three Σ0,+,++c...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
5 January 2022
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| In: |
Physical review letters
Year: 2022, Jahrgang: 128, Heft: 1, Pages: 1-13 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.128.012001 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.128.012001 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.128.012001 
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| Verfasserangaben: | S. Acharya et al. (ALICE Collaboration) |
MARC
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| 245 | 1 | 0 | |a Measurement of prompt D0, Λ+c, and Σ0,++c (2455) production in proton-proton collisions at √s=13 TeV |c S. Acharya et al. (ALICE Collaboration) |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Measurement of prompt D 0, Lambda + c, and Sigma 0, + + c (2455) production in proton-proton collisions at square root s = 13 TeV |
| 246 | 3 | 3 | |a Measurement of prompt D 0, Lambda plus c, and Sigma 0, plus plus c (2455) production in proton-proton collisions at square root s = 13 TeV |
| 264 | 1 | |c 5 January 2022 | |
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| 500 | |a Im Titel steht der Buchstabe s unter dem Wurzelsymbol, "0" und "+" sind jeweils hochgestellt, "c" ist jeweils tiefgestellt | ||
| 500 | |a ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, A. Berdnikova, L. Bergmann, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M. Kroesen, N. Martin, A. Nath, Y.C. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, G. Skorodumovs, J. Stachel, S. Stiefelmaier, M. Völkl, B. Windelband, A. Yüncü [und viele weitere] | ||
| 500 | |a Gesehen am 17.10.2022 | ||
| 520 | |a The pT-differential production cross sections of prompt D0, Λ+c, and Σ0,c(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at √s=13 TeV. This is the first measurement of Σ0,++c production in hadronic collisions. Assuming the same production yield for the three Σ0,+,++c isospin states, the baryon-to-meson cross section ratios Σ0,+,++c/D0 and Λ+c/D0 are calculated in the transverse momentum (pT) intervals 2<pT<12 and 1<pT<24 GeV/c. Values significantly larger than in e+e− collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σc. The feed-down contribution to Λ+c production from Σ0,+,++c is also reported and is found to be larger than in e+e− collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models. | ||
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