TY - JOUR
T1 - Possible mixing of a diquark-antidiquark with a p p ¯ hadronic molecule
AU - Karliner, Marek
AU - Rosner, Jonathan L.
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
PY - 2024/11/1
Y1 - 2024/11/1
N2 - We discuss the possibility that the two nearby resonances observed by BESIII partially below the pp¯ threshold might be due to mixing between two metastable states with the same JPC=0-+ quantum numbers, but rather different internal structure. One is a pp¯ hadronic molecule and the other a bound state of a light-quark diquark and an antidiquark, both with spin 1 and isospin 0, a composite color antitriplet and triplet, respectively. The doubling of resonances, one of which may be interpreted as a hadronic molecule, while the other arises from qq¯ annihilation in a state with vacuum quantum numbers, may be a more general feature than the specific case considered here.
AB - We discuss the possibility that the two nearby resonances observed by BESIII partially below the pp¯ threshold might be due to mixing between two metastable states with the same JPC=0-+ quantum numbers, but rather different internal structure. One is a pp¯ hadronic molecule and the other a bound state of a light-quark diquark and an antidiquark, both with spin 1 and isospin 0, a composite color antitriplet and triplet, respectively. The doubling of resonances, one of which may be interpreted as a hadronic molecule, while the other arises from qq¯ annihilation in a state with vacuum quantum numbers, may be a more general feature than the specific case considered here.
UR - http://www.scopus.com/inward/record.url?scp=85210774775&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.110.094058
DO - 10.1103/PhysRevD.110.094058
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AN - SCOPUS:85210774775
SN - 2470-0010
VL - 110
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 094058
ER -