Abstract
Abstract
The radiative B to tensor
K
2
*
(
1430
)
,
f
2
(
1270
)
,
a
2
(
1320
)
meson decays are studied at next-to-leading order in soft-collinear effective theory (SCET). The SCET allows the systematic treatment of factorizable and non-factorizable contributions along with the resummation of large perturbative logarithms. We performed a two-step matching and determined the soft-overlap function
ζ
T
⊥
and branching ratios for these B to tensor meson decays. In the case of
B
→
K
2
*
(
1430
)
γ
, the numerical value of the branching ratio lies close to its experimental measurements. The estimated values of the branching ratios of Cabibbo–Kobayashi–Maskawa suppressed decays
B
→
a
2
(
1320
)
,
f
2
(
1270
)
γ
are significantly small compared to that of
B
→
K
2
*
(
1430
)
γ
, but still could be measured in some ongoing and future B physics experiments.
Subject
Nuclear and High Energy Physics