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Электронный каталог: Acharya, S. - Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged...
Acharya, S. - Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged...
Статья
Автор: Acharya, S.
Physics Letters B: Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged...
б.г.
ISBN отсутствует
Автор: Acharya, S.
Physics Letters B: Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged...
б.г.
ISBN отсутствует
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Статья
Acharya, S.
Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged Particles in pp Collisions at *%s = 13 TeV / S.Acharya, B.Batyunya, R.A.Diaz, S.Grigoryan, A.Kondratyev, A.Kuznetsov, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, A.Vodopyanov, [ALICE Collab.]. – Text : electronic // Physics Letters B. – 2025. – Vol. 868. – P. 139681. – URL: https://doi.org/10.1016/j.physletb.2025.139681. – Bibliogr.: 51.
The distribution of angular correlations between prompt charm hadrons and primary charged particles in pp collisions is sensitive to the charm-quark hadronisation process. In this letter, charm-baryon correlations are measured for the first time by studying the azimuthal-angle difference between charged particles and prompt *L&sup(+)&sub(c) baryons produced in pp collisions at a centre-of-mass energy of *%𝑠 = 13 TeV, with the ALICE detector. *L&sup(+)&sub(c) baryons are reconstructed at midrapidity (|𝑦| < 0.5) in the transverse-momentum interval 3 < 𝑝&sub(T) < 16 GeV/𝑐, and correlated with charged particles with 𝑝&sub(T) > 0.3 GeV/𝑐 and pseudorapidity |*h| < 0.8. For 3 < 𝑝&sup(*L+ c,D)&sub(T) < 5 GeV/𝑐, the comparison with published measurements of D-meson and charged-particle correlations in the same collision system hints at a larger number of low-momentum particles associated with *L&sup(+)&sub(c) -baryon triggers than with D-meson triggers, both in the collinear and opposite directions with respect to the trigger particle. These differences can be quantified by the comparison of the properties of the near- and away-side correlation peaks, and are not reproduced by predictions of various Monte Carlo event generators, generally underpredicting the associated particle yields at 𝑝assoc T < 1 GeV/𝑐. This tension between *L&sup(+)&sub(c) -baryon and D-meson associated peak yields could suggest a modified fragmentation of the charm quark, or a different hadronisation process, when a charm baryon is produced in the final state.
Спец.(статьи,препринты) = С 346.6д1 - Чармоний, боттомоний, топ-кварк. Очарованные частицы и др. резонансы из тяжелых кварков
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
ОИЯИ = ОИЯИ (JINR)2025
Acharya, S.
Studying Charm Hadronisation into Baryons with Azimuthal Correlations of *L*+&sub(c) with Charged Particles in pp Collisions at *%s = 13 TeV / S.Acharya, B.Batyunya, R.A.Diaz, S.Grigoryan, A.Kondratyev, A.Kuznetsov, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, A.Vodopyanov, [ALICE Collab.]. – Text : electronic // Physics Letters B. – 2025. – Vol. 868. – P. 139681. – URL: https://doi.org/10.1016/j.physletb.2025.139681. – Bibliogr.: 51.
The distribution of angular correlations between prompt charm hadrons and primary charged particles in pp collisions is sensitive to the charm-quark hadronisation process. In this letter, charm-baryon correlations are measured for the first time by studying the azimuthal-angle difference between charged particles and prompt *L&sup(+)&sub(c) baryons produced in pp collisions at a centre-of-mass energy of *%𝑠 = 13 TeV, with the ALICE detector. *L&sup(+)&sub(c) baryons are reconstructed at midrapidity (|𝑦| < 0.5) in the transverse-momentum interval 3 < 𝑝&sub(T) < 16 GeV/𝑐, and correlated with charged particles with 𝑝&sub(T) > 0.3 GeV/𝑐 and pseudorapidity |*h| < 0.8. For 3 < 𝑝&sup(*L+ c,D)&sub(T) < 5 GeV/𝑐, the comparison with published measurements of D-meson and charged-particle correlations in the same collision system hints at a larger number of low-momentum particles associated with *L&sup(+)&sub(c) -baryon triggers than with D-meson triggers, both in the collinear and opposite directions with respect to the trigger particle. These differences can be quantified by the comparison of the properties of the near- and away-side correlation peaks, and are not reproduced by predictions of various Monte Carlo event generators, generally underpredicting the associated particle yields at 𝑝assoc T < 1 GeV/𝑐. This tension between *L&sup(+)&sub(c) -baryon and D-meson associated peak yields could suggest a modified fragmentation of the charm quark, or a different hadronisation process, when a charm baryon is produced in the final state.
Спец.(статьи,препринты) = С 346.6д1 - Чармоний, боттомоний, топ-кварк. Очарованные частицы и др. резонансы из тяжелых кварков
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
ОИЯИ = ОИЯИ (JINR)2025
