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.

Acharya, S., Agarwal, A., Aglieri Rinella, G., Aglietta, L., Agnello, M., Agrawal, N., et al. (2025). First measurement of Ds1(1+)(2536)+ and D*s2 (2+)(2573)+ production in proton-proton collisions at √s = 13 TeV at the LHC. PHYSICAL REVIEW D, 111(11), 1-16 [10.1103/PhysRevD.111.112005].

First measurement of Ds1(1+)(2536)+ and D*s2 (2+)(2573)+ production in proton-proton collisions at √s = 13 TeV at the LHC

Agrawal N.;Alici A.;Arcelli S.;Bellini F.;Colocci M.;Ercolessi F.;Jacazio N.;Malfattore G.;Romanenko G.;Rubini N.;Sabiu B.;Scioli G.;Strazzi S.;Tomassini S.;
2025

Abstract

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.
2025
Acharya, S., Agarwal, A., Aglieri Rinella, G., Aglietta, L., Agnello, M., Agrawal, N., et al. (2025). First measurement of Ds1(1+)(2536)+ and D*s2 (2+)(2573)+ production in proton-proton collisions at √s = 13 TeV at the LHC. PHYSICAL REVIEW D, 111(11), 1-16 [10.1103/PhysRevD.111.112005].
Acharya, S.; Agarwal, A.; Aglieri Rinella, G.; Aglietta, L.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I.; Akindinov, A.; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1049880
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