A. Hovhannisyan

activity

20032007

most citedEstimate of BR(B -> X_s gamma) at O(alpha_s^2)

651 citations · 686 across the 3 of their papers we have counts for

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hep-ph2007★ 11 cited

SUSY R-parity violating contributions to the width differences for $D - D ˉ$ and $B_{d, s} - B ˉ_{d, s}$ systems

Shao-Long Chen, Xiao-Gang He, A. Hovhannisyan +1

We study R-parity violating contributions to the mixing parameter $y$ for $D^{0} - D ˉ^{0}$ and $B_{d, s}^{0} - B ˉ_{d, s}^{0}$ systems. We first obtain general expressions for new phys…

hep-ph2007★ 24 cited

$B \to K^{*} ℓ^{+} ℓ^{-}$ Forward-backward Asymmetry and New Physics

Artyom Hovhannisyan, Wei-Shu Hou, Namit Mahajan

The forward-backward asymmetry $A_{FB}$ in $B \to K^{*} ℓ^{+} ℓ^{-}$ decay is a sensitive probe of New Physics. Previous studies have focused on the sensitivity in the posi…

hep-ph2006★ 651 cited

Estimate of BR(B -> X_s gamma) at O(alpha_s^2)

M. Misiak, H. M. Asatrian, K. Bieri +14

Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next…

hep-ph2004

Rare decays $B ˉ \to X_{s (d)} γ$ at the NLO

H. M. Asatrian, H. H. Asatryan, A. Hovhannisyan

We present an independent calculation of $O (α_{s})$ matrix elements of the QCD penguin operators for the decays $B ˉ \to X_{s (d)} γ$ . The Mellin-Barnes representation techn…

hep-ph2003

Complete bremsstrahlung corrections to the forward-backward asymmetries in $b \to X_{s} ℓ^{+} ℓ^{-}$

H. M. Asatrian, H. H. Asatryan, A. Hovhannisyan +1

In a recent paper we presented a calculation of NNLL virtual corrections to the forward-backward asymmetries in $b \to X_{s} ℓ^{+} ℓ^{-}$ decay. That result does not include bremsstra…

SUSY R-parity violating contributions to the width differences for D−Dˉ and Bd,s​−Bˉd,s​ systems

B→K∗ℓ+ℓ− Forward-backward Asymmetry and New Physics

Estimate of BR(B -> X_s gamma) at O(alpha_s^2)

Rare decays Bˉ→Xs(d)​γ at the NLO

Complete bremsstrahlung corrections to the forward-backward asymmetries in b→Xs​ℓ+ℓ−

SUSY R-parity violating contributions to the width differences for $D - D ˉ$ and $B_{d, s} - B ˉ_{d, s}$ systems

$B \to K^{*} ℓ^{+} ℓ^{-}$ Forward-backward Asymmetry and New Physics

Rare decays $B ˉ \to X_{s (d)} γ$ at the NLO

Complete bremsstrahlung corrections to the forward-backward asymmetries in $b \to X_{s} ℓ^{+} ℓ^{-}$