in the soft-collinear effective theory. We consider three types of contributions to the decay amplitudes, including the direct annihilation topology, the contribution from the electro-magnetic penguin operator and the contribution of the neutral vector meson mixings. The numerical analysis shows that the decay amplitudes are dominated by the

ω-φ

mixing effect in the

B^0 \to φγ

and

B_s \to ωγ

modes. The corresponding decay branching ratios are enhanced about three orders of magnitudes relative to the pure annihilation type contribution in these two decay channels. The decay rate of

B_s \to ρ^0γ

is much smaller than that of

B_s \to ωγ

because of the smaller

ρ^0-φ

mixing. The predicted branching ratios

B(B^{0}\rightarrowφγ)=(3.99^{+1.67}_{-1.46} )\times10^{-9},\,B(B_s\rightarrowωγ)=(2.01^{+0.81}_{-0.71} )\times10^{-7}

are to be tested by the Belle-II and LHC-b experiments.

astro-ph/0611030

almost 20 years ago

Underground Water Cherenkov Muon Detector Array with the Tibet Air Shower Array for Gamma-Ray Astronomy in the 100 TeV Region

The Tibet AS Gamma Collaboration, M. Amenomori

astro-ph

astro-ph/0512460

over 20 years ago

Observation of PeV Gamma Rays from the Monogem Ring with the Tibet Air Shower Array

The Tibet AS Gamma Collaboration, M. Amenomori

astro-ph

astro-ph/0511514

almost 21 years ago

Flux upper limits of diffuse TeV gamma rays from the Galactic plane using the effective area of the Tibet-II and -III arrays

The Tibet AS Gamma Collaboration, M. Amenomori

astro-ph

astro-ph/0611335

almost 20 years ago

Revised Upper Limits of the Diffuse Tev Gamma Rays from the Galactic Planes with the Tibet II and III Air Shower Arrays

The Tibet AS Gamma Collaboration, M. Amenomori

astro-ph

0708.3462

almost 19 years ago

Search for pulsed multi-TeV gamma rays from the Crab pulsar using the Tibet-III air shower array

The Tibet AS Gamma Collaboration, M. Amenomori

astro-ph

2608.18038

1 day ago

Confining density functional approach to the QCD phase diagram at low temperatures and thermal twin stars

David Blaschke, Oleksii Ivanytskyi

Nuclear Theory Solar and Stellar Astrophysics Phenomenology

Nearby in the stack

Study on pure annihilation type B to V gamma decays

Claims

Methods

Limitations

Nearby in the stack

Underground Water Cherenkov Muon Detector Array with the Tibet Air Shower Array for Gamma-Ray Astronomy in the 100 TeV Region

Observation of PeV Gamma Rays from the Monogem Ring with the Tibet Air Shower Array

Flux upper limits of diffuse TeV gamma rays from the Galactic plane using the effective area of the Tibet-II and -III arrays

Revised Upper Limits of the Diffuse Tev Gamma Rays from the Galactic Planes with the Tibet II and III Air Shower Arrays

Search for pulsed multi-TeV gamma rays from the Crab pulsar using the Tibet-III air shower array

Confining density functional approach to the QCD phase diagram at low temperatures and thermal twin stars

Underground Water Cherenkov Muon Detector Array with the Tibet Air Shower Array for Gamma-Ray Astronomy in the 100 TeV Region

Observation of PeV Gamma Rays from the Monogem Ring with the Tibet Air Shower Array

Flux upper limits of diffuse TeV gamma rays from the Galactic plane using the effective area of the Tibet-II and -III arrays

Revised Upper Limits of the Diffuse Tev Gamma Rays from the Galactic Planes with the Tibet II and III Air Shower Arrays

Search for pulsed multi-TeV gamma rays from the Crab pulsar using the Tibet-III air shower array

Confining density functional approach to the QCD phase diagram at low temperatures and thermal twin stars