Abstract
We study charmless pure annihilation type radiative B decays within the QCD factorization approach. After adding the vertex corrections to the naive factorization approach, we find that the branching ratios of B̄d0 → φγ, B̄s0 → ρ0γ, B̄s0 → ωγ within the standard model are at the order of O(10-12), O(10-10), and O(10-11)respectively. The smallness of these decays in the standard model makes them sensitive probes of flavor physics beyond the standard model. To explore their physics potential, we have estimated the contribution of Z′ boson in the decays. Within the allowed parameter space, the branching ratios of these decay modes can be enhanced remarkably in the non-universal Z′ model: The branching ratios can reach to O(10-8) for B̄s0 → ρ0(ω)γ and O(10-10) for the B̄d0 → φγ, which are large enough for LHC-b and/or Super B-factories to detect those channels in near future. Moreover, we also predict large CP asymmetries in suitable parameter space. The observation of these modes could in turn help us to constrain the Z′ mass within the model.
| Original language | English |
|---|---|
| Pages (from-to) | 139-146 |
| Number of pages | 8 |
| Journal | European Physical Journal C |
| Volume | 69 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 Aug 3 |
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All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)
Cite this
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Annihilation-type charmless radiative decays of B meson in non-universal Z′ model. / Hua, Juan; Kim, Choong Sun; Li, Ying.
In: European Physical Journal C, Vol. 69, No. 1, 03.08.2010, p. 139-146.Research output: Contribution to journal › Article
TY - JOUR
T1 - Annihilation-type charmless radiative decays of B meson in non-universal Z′ model
AU - Hua, Juan
AU - Kim, Choong Sun
AU - Li, Ying
PY - 2010/8/3
Y1 - 2010/8/3
N2 - We study charmless pure annihilation type radiative B decays within the QCD factorization approach. After adding the vertex corrections to the naive factorization approach, we find that the branching ratios of B̄d0 → φγ, B̄s0 → ρ0γ, B̄s0 → ωγ within the standard model are at the order of O(10-12), O(10-10), and O(10-11)respectively. The smallness of these decays in the standard model makes them sensitive probes of flavor physics beyond the standard model. To explore their physics potential, we have estimated the contribution of Z′ boson in the decays. Within the allowed parameter space, the branching ratios of these decay modes can be enhanced remarkably in the non-universal Z′ model: The branching ratios can reach to O(10-8) for B̄s0 → ρ0(ω)γ and O(10-10) for the B̄d0 → φγ, which are large enough for LHC-b and/or Super B-factories to detect those channels in near future. Moreover, we also predict large CP asymmetries in suitable parameter space. The observation of these modes could in turn help us to constrain the Z′ mass within the model.
AB - We study charmless pure annihilation type radiative B decays within the QCD factorization approach. After adding the vertex corrections to the naive factorization approach, we find that the branching ratios of B̄d0 → φγ, B̄s0 → ρ0γ, B̄s0 → ωγ within the standard model are at the order of O(10-12), O(10-10), and O(10-11)respectively. The smallness of these decays in the standard model makes them sensitive probes of flavor physics beyond the standard model. To explore their physics potential, we have estimated the contribution of Z′ boson in the decays. Within the allowed parameter space, the branching ratios of these decay modes can be enhanced remarkably in the non-universal Z′ model: The branching ratios can reach to O(10-8) for B̄s0 → ρ0(ω)γ and O(10-10) for the B̄d0 → φγ, which are large enough for LHC-b and/or Super B-factories to detect those channels in near future. Moreover, we also predict large CP asymmetries in suitable parameter space. The observation of these modes could in turn help us to constrain the Z′ mass within the model.
UR - http://www.scopus.com/inward/record.url?scp=77956677069&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956677069&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-010-1395-2
DO - 10.1140/epjc/s10052-010-1395-2
M3 - Article
VL - 69
SP - 139
EP - 146
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 1
ER -