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[Formula: see text] excited states within a [Formula: see text] HQSS model.

Authors :
Nieves J
Pavao R
Tolos L
Source :
The European physical journal. C, Particles and fields [Eur Phys J C Part Fields] 2018; Vol. 78 (2), pp. 114. Date of Electronic Publication: 2018 Feb 07.
Publication Year :
2018

Abstract

We have reviewed the renormalization procedure used in the unitarized coupled-channel model of Romanets et al. (Phys Rev D 85:114032, 2012), and its impact in the [Formula: see text], [Formula: see text], and [Formula: see text] sector, where five [Formula: see text] states have been recently observed by the LHCb Collaboration. The meson-baryon interactions used in the model are consistent with both chiral and heavy-quark spin symmetries, and lead to a successful description of the observed lowest-lying odd parity resonances [Formula: see text] and [Formula: see text], and [Formula: see text] and [Formula: see text] resonances. We show that some (probably at least three) of the states observed by LHCb will also have odd parity and [Formula: see text] or [Formula: see text], belonging two of them to the same [Formula: see text] HQSS multiplets as the latter charmed and beauty [Formula: see text] baryons.

Details

Language :
English
ISSN :
1434-6044
Volume :
78
Issue :
2
Database :
MEDLINE
Journal :
The European physical journal. C, Particles and fields
Publication Type :
Academic Journal
Accession number :
29563852
Full Text :
https://doi.org/10.1140/epjc/s10052-018-5597-3