https://doi.org/10.1140/epjp/s13360-023-04058-2
Regular Article
Axial-vector charges of the spin
and spin
light and charmed baryons in the SU(4) chiral quark constituent model
1
Department of Physics, Dr. B.R. Ambedkar National Institute of Technology, 144027, Jalandhar, India
2
University Institute of Engineering and Technology, Panjab University, 160014, Chandigarh, India
Received:
22
December
2022
Accepted:
4
May
2023
Published online:
23
May
2023
Following the first clear evidence of the presence of intrinsic charm contribution in the proton, the axial-vector charges of the light and charmed baryons are investigated in the framework of chiral constituent quark model after including the explicit contributions from the
,
,
and
fluctuations. The axial-vector charges having physical significance correspond to the generators of the
group with flavor singlet
, flavor isovector
, flavor hypercharge
and flavor charmed
combinations of axial-vector current at zero momentum transfer. In contemplation to further understand the
dependence of these charges, we have used the conventionally established dipole form of parametrization. The baryons considered here are the spin
and spin
multiplets decomposed further depending on the charm content of baryons.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.