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First measurement of 𝐷𝑠⁢1⁡(1+)⁢(2536)+ and 𝐷*𝑠⁢2⁡(2+)⁢(2573)+production in proton-proton collisions at √𝑠 = 13  TeV at the LHC

The production yields of the orbitally excited charm-strange mesons Ds⁢1⁡(1+)⁢(2536)+ and D*s⁢2⁡(2+)⁢(2573)+ were measured for the first time in proton-proton (pp) collisions at a center-of-mass energy of √𝑠 =13 TeV with the ALICE experiment at the LHC. The D+s⁢1 and D*+s⁢2 mesons were measured at m...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Berdnikova, Anastasia (Author) , Bergmann, Luisa (Author) , Bórquez Cárcamo, Andrés G. (Author) , Danisch, Meike (Author) , Feuillard, Victor (Author) , Fokin, Ilya D. (Author) , Glässel, Peter (Author) , Grünwald, Nadine (Author) , Nath, Abhishek (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schlepper, Felix (Author) , Seo, Jinjoo (Author) , Skorodumovs, Georgijs (Author) , Stachel, Johanna (Author) , Stiefelmaier, Stephan (Author) , Veen, Casper Arie van (Author) , Völkl, Martin (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author) , Zanone, Federica (Author) , Zhang, Biao (Author)
Format: Article (Journal)
Language:English
Published: 16 June, 2025
In: Physical review
Year: 2025, Volume: 111, Issue: 11, Pages: 1-16
ISSN:2470-0029
DOI:10.1103/PhysRevD.111.112005
Online Access:Resolving-System, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.111.112005
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.111.112005
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Author Notes:S. Acharya [und 1078 weitere] (ALICE Collaboration)
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Summary:The production yields of the orbitally excited charm-strange mesons Ds⁢1⁡(1+)⁢(2536)+ and D*s⁢2⁡(2+)⁢(2573)+ were measured for the first time in proton-proton (pp) collisions at a center-of-mass energy of √𝑠 =13 TeV with the ALICE experiment at the LHC. The D+s⁢1 and D*+s⁢2 mesons were measured at midrapidity (|𝑦| <0.5) in minimum-bias and high-multiplicity pp collisions in the transverse-momentum interval 2<𝑝T<24 GeV/𝑐. Their production yields relative to the D+s ground-state yield were found to be compatible between minimum-bias and high-multiplicity collisions, as well as with previous measurements in e±⁢p and e+⁢e− collisions. The measured D+s⁢1/D+s and D*+s⁢2/D+s yield ratios are described by statistical hadronization models and can be used to tune the parameters governing the production of excited charm-strange hadrons in Monte Carlo generators, such as pythia 8.
Item Description:Im Titel ist "s1" und "s2" jeweils tiefgestellt, das Sternchen ist hochgestellt, dabei steht das Sternchen über "s2", die Pluszeichen sind immer hochgestellt,
Gesehen am 29.05.2026
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.111.112005

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