TY - JOUR

T1 - Relativistic effects in M1 radiative decays of heavy-light mesons

AU - Bondar, A. E.

AU - Milstein, A. I.

N1 - Bondar A. E., Milstein A. I. Relativistic effects in M1 radiative decays of heavy-light mesons/ A. E. Bondar, A. I. Milstein // Physical Review D. - 2025. - Т. 112. № 5. - С. 054037. DOI 10.1103/gnyk-r31j

PY - 2025/9/22

Y1 - 2025/9/22

N2 - We discuss the M1 radiative transitions D * → D γ , D s * → D s γ , B * → B γ , and B s * → B s γ . A relativistic potential model is proposed. The corresponding Hamiltonian, when expanded to terms of the order of v 2 / c 2 , where v are the quark velocities, coincides with the Breit Hamiltonian. This model allows making predictions for the widths of radiative transitions of mesons with one light quark. Taking into account relativistic effects is especially important for the transitions D s * + → D s + γ and D * + → D + γ , where there is a large compensation in the magnitude of the magnetic moment of these mesons. Our results are consistent with known experimental data.

AB - We discuss the M1 radiative transitions D * → D γ , D s * → D s γ , B * → B γ , and B s * → B s γ . A relativistic potential model is proposed. The corresponding Hamiltonian, when expanded to terms of the order of v 2 / c 2 , where v are the quark velocities, coincides with the Breit Hamiltonian. This model allows making predictions for the widths of radiative transitions of mesons with one light quark. Taking into account relativistic effects is especially important for the transitions D s * + → D s + γ and D * + → D + γ , where there is a large compensation in the magnitude of the magnetic moment of these mesons. Our results are consistent with known experimental data.

UR - https://www.mendeley.com/catalogue/f362ce4e-cc9b-3171-8240-d25d6914616c/

U2 - 10.1103/gnyk-r31j

DO - 10.1103/gnyk-r31j

M3 - Article

VL - 112

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 5

M1 - 054037

ER -