[논문]Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $$\\sqrt{s}$$ = 13 TeV

Acharya, S.; Adamová; , D.; Adhya, S. P.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Albuquerque, D. S. D.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I.; Anaam, M. N.; Andrei, C.; Andreou, D.; Andrews, H. A.; Andronic, A.; Angeletti, M.; Anguelov, V.; Anson, C.; Antič; ić; , T.; Antinori, F.; Antonioli, P.; Anwar, R.; Apadula, N.; Aphecetche, L.; Appelshä; user, H.; Arcelli, S.; Arnaldi, R.; Arratia, M.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Aziz, S.; Azmi, M. D.; Badalà; , A.; Baek, Y. W.; Bagnasco, S.; Bai, X.; Bailhache, R.; Bala, R.; Baldisseri, A.; Ball, M.; Balouza, S.; Baral, R. C.; Barbera, R.; Barioglio, L.; Barnafö; ldi, G. G.; Barn

doi:10.1140/epjc/s10052-020-7673-8

[해외논문] Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $$\\sqrt{s}$$ = 13 TeV 원문보기

The European physical journal. C, Particles and fields, v.80 no.2, 2020년, pp.167 -

Acharya, S. , Adamová, D. , Adhya, S. P. , Adler, A. , Adolfsson, J. , Aggarwal, M. M. , Aglieri Rinella, G. , Agnello, M. , Agrawal, N. , Ahammed, Z. , Ahmad, S. , Ahn, S. U. , Akindinov, A. , Al-Turany, M. , Alam, S. N. , Albuquerque, D. S. D. , Aleksandrov, D. , Alessandro, B. , Alfanda, H. M. , Alfaro Molina, R. , Ali, B. , Ali, Y. , Alici, A. , Alkin, A. , Alme, J. , Alt, T. , Altenkamper, L. , Altsybeev, I. , Anaam, M. N. , Andrei, C. , Andreou, D. , Andrews, H. A. , Andronic, A. , Angeletti, M. , Anguelov, V. , Anson, C. , Antičić, T. , Antinori, F. , Antonioli, P. , Anwar, R. , Apadula, N. , Aphecetche, L. , Appelshäuser, H. , Arcelli, S. , Arnaldi, R. , Arratia, M. , Arsene, I. C. , Arslandok, M. , Augustinus, A. , Averbeck, R. , Aziz, S. , Azmi, M. D. , Badalà, A. , Baek, Y. W. , Bagnasco, S. , Bai, X. , Bailhache, R. , Bala, R. , Baldisseri, A. , Ball, M. , Balouza, S. , Baral, R. C. , Barbera, R. , Barioglio, L. , Barnaföldi, G. G. , Barn

Abstract ▼ AI-Helper

AbstractThe production rates and the transverse momentum distribution of strange hadrons at mid-rapidity ($$\left| y\right| < 0.5$$$ \left(y\right)\& lt;0.5$) are measured in proton-proton collisions at $$\sqrt{s}$$$ \sqrt{s}$ = 13 TeV as a function of the charged particle multiplicity, using the ALICE detector at the LHC. The production rates of $$\mathrm{K}^{0}_{S}$$$ K_{S}^{0}$, $$\Lambda $$$ \Lambda $, $$\Xi $$$ \Xi $, and $$\Omega $$$ \Omega $ increase with the multiplicity faster than what is reported for inclusive charged particles. The increase is found to be more pronounced for hadrons with a larger strangeness content. Possible auto-correlations between the charged particles and the strange hadrons are evaluated by measuring the event-activity with charged particle multiplicity estimators covering different pseudorapidity regions. When comparing to lower energy results, the yields of strange hadrons are found to depend only on the mid-rapidity charged particle multiplicity. Several features of the data are reproduced qualitatively by general purpose QCD Monte Carlo models that take into account the effect of densely-packed QCD strings in high multiplicity collisions. However, none of the tested models reproduce the data quantitatively. This work corroborates and extends the ALICE findings on strangeness production in proton-proton collisions at 7 TeV.

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