Generating a resonance-like structure in the reaction $$B_c\rightarrow B_s \pi \pi $$ B c → B s π π

Bibliographic Details
Title:	Generating a resonance-like structure in the reaction $$B_c\rightarrow B_s \pi \pi $$ B c → B s π π
Authors:	Xiao-Hai Liu, Ulf-G. Meißner
Source:	European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-8 (2017)
Publisher Information:	SpringerOpen, 2017.
Publication Year:	2017
Collection:	LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity
Subject Terms:	Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
More Details:	Abstract We investigate the process $$B_c^+\rightarrow B_s^0\pi ^+\pi ^0$$ B c + → B s 0 π + π 0 via $$B\bar{K}^*$$ B K ¯ ∗ rescattering. The kinematic conditions for triangle singularities are perfectly satisfied in the rescattering diagrams. A resonance-like structure around the $$B\bar{K}$$ B K ¯ threshold, which we denote X(5777), is predicted to be present in the invariant mass distribution of $$B_s^0 \pi ^+$$ B s 0 π + . Because the relative weak $$B\bar{K}$$ B K ¯ $$(I=1)$$ ( I = 1 ) interaction does not support the existence of a dynamically generated hadronic molecule, X(5777) can be identified as a pure kinematical effect due to the triangle singularity. Its observation may help to establish a non-resonance interpretation for some XYZ particles.
Document Type:	article
File Description:	electronic resource
Language:	English
ISSN:	1434-6044 1434-6052
Relation:	http://link.springer.com/article/10.1140/epjc/s10052-017-5402-8; https://doaj.org/toc/1434-6044; https://doaj.org/toc/1434-6052
DOI:	10.1140/epjc/s10052-017-5402-8
Access URL:	https://doaj.org/article/3a0c1beaa9754faea4b6071f153bdba3
Accession Number:	edsdoj.3a0c1beaa9754faea4b6071f153bdba3
Database:	Directory of Open Access Journals

More Details
ISSN:	14346044 14346052
DOI:	10.1140/epjc/s10052-017-5402-8
Published in:	European Physical Journal C: Particles and Fields
Language:	English