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PREDICTION OF PURE ANNIHILATION TYPE B DECAYS
, 2003
"... s K 0 can occur only via annihilation type diagrams in the standard model. We calculate these decays in perturbative QCD approach. We found that the calculated branching ratio of B 0 → D − s K + agree with the data which had been observed in the KEK and SLAC B factories. The decay B + → D (∗)+ ¯ 0 s ..."
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s K 0 can occur only via annihilation type diagrams in the standard model. We calculate these decays in perturbative QCD approach. We found that the calculated branching ratio of B 0 → D − s K + agree with the data which had been observed in the KEK and SLAC B factories. The decay B + → D (∗)+ ¯ 0
Study of Pure Annihilation Decays Bd,s → D 0 D 0
, 2008
"... With heavy quark limit and hierarchy approximation λQCD ≪ mD ≪ mB, we analyze the B → D 0 D 0 and Bs → D 0 D 0 decays, which occur purely via annihilation type diagrams. As a roughly estimation, we calculate their branching ratios and CP asymmetries in Perturbative QCD approach. The branching ratio ..."
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With heavy quark limit and hierarchy approximation λQCD ≪ mD ≪ mB, we analyze the B → D 0 D 0 and Bs → D 0 D 0 decays, which occur purely via annihilation type diagrams. As a roughly estimation, we calculate their branching ratios and CP asymmetries in Perturbative QCD approach. The branching ratio
Study Pure Annihilation Decays B 0 s ( ¯B 0 s) → D ± π ∓ in PQCD Approach ∗
, 2008
"... The rare decays B 0 s → D ± π ∓ and ¯ B 0 s → D ∓ π ± can occur only via annihilation type diagrams in the standard model. In this paper, we calculate branching ratios of these decays in perturbative QCD approach ignoring soft final state interaction. From our calculation, we find that their branchi ..."
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The rare decays B 0 s → D ± π ∓ and ¯ B 0 s → D ∓ π ± can occur only via annihilation type diagrams in the standard model. In this paper, we calculate branching ratios of these decays in perturbative QCD approach ignoring soft final state interaction. From our calculation, we find
BIHEPTH200313 Study of pure annihilation type decays B → D ∗ sK
, 2008
"... In this work, we calculate the rare decays B 0 → D ∗− s K + and B + → D ∗+ s K 0 in perturbative QCD approach with Sudakov resummation. We give the branching ratio of 10 −5 for B 0 → D ∗− s K +, which will be tested soon in B factories. The decay B + → D ∗+ s K0 has a very small branching ratio at O ..."
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In this work, we calculate the rare decays B 0 → D ∗− s K + and B + → D ∗+ s K 0 in perturbative QCD approach with Sudakov resummation. We give the branching ratio of 10 −5 for B 0 → D ∗− s K +, which will be tested soon in B factories. The decay B + → D ∗+ s K0 has a very small branching ratio at O(10 −8), due to the suppression from CKM matrix elements V ∗ ub Vcd. It may be sensitive to new physics contributions.
Pure Submodules of Multiplication Modules
"... Abstract. The purpose of this paper is to investigate pure submodules of multiplication modules. We introduce the concept of idempotent submodule generalizing idempotent ideal. We show that a submodule of a multiplication module with pure annihilator is pure if and only if it is multiplication and ..."
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Abstract. The purpose of this paper is to investigate pure submodules of multiplication modules. We introduce the concept of idempotent submodule generalizing idempotent ideal. We show that a submodule of a multiplication module with pure annihilator is pure if and only if it is multiplication
Dopplerbroadening measurements of positron annihilation with highmomentum electrons in pure elements
 Nucl. Instrum. Methods B
, 2002
"... Dopplerbroadening measurements of the electron–positron annihilation line in twentyseven singleelement samples are presented. A coincidence technique has been used to suppress the background and to evidence the contribution of positron annihilation with core electrons. Systematic dependences on t ..."
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Dopplerbroadening measurements of the electron–positron annihilation line in twentyseven singleelement samples are presented. A coincidence technique has been used to suppress the background and to evidence the contribution of positron annihilation with core electrons. Systematic dependences
Pure Leptonic Radiative Decays B ± , Ds → ℓνγ and the Annihilation Graph
, 1994
"... Abstract: Pure leptonic radiative decays of heavylight mesons are calculated using a very simple nonrelativistic model. Dominant contribution originates from photon emission from light initial quark. We find BR(B ± → ℓνγ) ∼ 3.5 × 10 −6 and BR(Ds → ℓνγ) ∼ 1.7 × 10 −4. The importance of these rea ..."
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Abstract: Pure leptonic radiative decays of heavylight mesons are calculated using a very simple nonrelativistic model. Dominant contribution originates from photon emission from light initial quark. We find BR(B ± → ℓνγ) ∼ 3.5 × 10 −6 and BR(Ds → ℓνγ) ∼ 1.7 × 10 −4. The importance
Results 1  10
of
220