Abstract
Abstract
The magnetic and quadrupole moments of the
,
, and
states are calculated within the QCD light-cone sum rules. The compact diquark-antidiquark interpolating currents and the distribution amplitudes of the on-shell photon are used to extract the magnetic and quadrupole moments of these states. The magnetic moments are acquired as
,
, and
for the
,
, and
states, respectively. The magnetic moments evaluated for the
,
, and
states are sufficiently large to be experimentally measurable. The magnetic moment is an excellent platform for studying the internal structure of hadrons governed by the quark-gluon dynamics of QCD because it is the leading-order response of a bound system to a weak external magnetic field. The quadrupole moment results are
,
, and
for the
,
, and
states, respectively. We obtain a non-zero, but small, value for the quadrupole moments of the
states, which indicates a non-spherical charge distribution. The nature and internal structure of these states can be elucidated by comparing future experimental data on the magnetic and quadrupole moments of the
,
, and
states with the results of the present study.
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
1 articles.
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