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	Author	LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Lucio Martinez, M.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Svintozelskyi, V.; Velilla Serna, J.; Zhuo, J.
	Title	Observation and investigation of the Tc(c)over-bar1(4430)+ structure in B+ → ψ(2S)KS0π+ decays			Type	Journal Article
	Year	2026	Publication	Physical Review D	Abbreviated Journal	Phys. Rev. D
	Volume	113	Issue	7	Pages	L071101 - 13pp
	Keywords
	Abstract	The first four-dimensional amplitude analysis of the B+ -> psi(2S)K-S(0)pi(+) decay is performed with proton-proton collision data collected by the LHCb experiment at root s = 13 TeV, corresponding to an integrated luminosity of 5.4 fb(-1). The data cannot be fully explained by B+ -> psi(2S)K(+) contributions alone. A significantly better description of the data is obtained by adding a T-c (c) over bar(+) contribution decaying to psi(2S)pi(+). The properties of the T-c (c) over bar(+) structure are consistent with the exotic state T-c (c) over bar1 (4430)(+) reported in the isospinrelated (B) over bar (0) -> psi(2S)K-pi(+) decay. Effects of a possible T-c (c) over bar1 (4430)(+) -> (D) over bar (1) (2600)D-0(+) decay mode on the T-c (c) over bar1(4430)(+) -> psi(2S)pi(+) mass distribution are investigated through a Flatte parametrization, providing constraints on the relative decay strength. A description of the T-c (c) over bar1(4430)(+) structure using the triangle singularity mechanism is studied and also found to be consistent with the data.
	Address	[Bonacci, R. B.; Dekkers, S.; Egede, U.; Hadavizadeh, T.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	2470-0010	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:001746852900001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	7223
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