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	Author	LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J.
	Title	Measurement of the multiplicity dependence of Γ production ratios in pp collisions at √s=13 Tev			Type	Journal Article
	Year	2025	Publication	Journal of High Energy Physics	Abbreviated Journal	J. High Energy Phys.
	Volume	05	Issue	5	Pages	011 - 24pp
	Keywords	Hadron-Hadron Scattering; Heavy Quark Production; Heavy-Ion Collision; Quarkonium
	Abstract	The Gamma(2S) and Gamma(3S) production cross-sections are measured relative to that of the Gamma(1S) meson, as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of 13TeV. The measurement uses data collected by the LHCb experiment in 2018 corresponding to an integrated luminosity of 2 fb(-1). Both the Gamma(2S)to-Gamma(1S) and Gamma(3S)-to-Gamma(1S) cross-section ratios are found to decrease significantly as a function of event multiplicity, with the Gamma(3S)-to-Gamma(1S) ratio showing a steeper decline towards high multiplicity. This hierarchy is qualitatively consistent with the comover model predictions, indicating that final-state interactions play an important role in bottomonia production in high-multiplicity events.
	Address	[Bonacci, R. B.; Dekkers, S.; Egede, U.; Fujii, Y.; Hadavizadeh, T.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia, Email: dongchenzhi716@gmail.com
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:001489922200001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	6712
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