Branching ratios, CP asymmetries and polarizations of $$B\rightarrow \psi (2S) V$$ decays
Abstract
We analyze the nonleptonic decays B/B _{s}→ψ(2S)V with V=(ρ,ω,K*,Φ) by employing the perturbative QCD (pQCD) factorization approach. Here the branching ratios, the CP asymmetries and the complete set of polarization observables are investigated systematically. Besides the traditional contributions from the factorizable and nonfactorizable diagrams at the leading order, the nexttoleading order (NLO) vertex corrections could also provide considerable contributions. The pQCD predictions for the branching ratios of the B _{(s)}→ψ(2S)K*,ψ(2S) decays are consistent with the measured values within errors. As for B→ψ(2S)ρ,ψ(2S)ω decays, the branching ratios can reach the order of 10 ^{–5} and could be measured in the LHCb and BelleII experiments. The numerical results show that the direct CP asymmetries of the considered decays are very small. Thus the observation of any large direct CP asymmetry for these decays will be a signal for new physics. The mixinginduced CP asymmetries in the neutral modes are very close to sin2β _{(s)}, which suggests that these channels can give a crosscheck on the measurement of the Cabbibo–Kobayashi–Maskawa (CKM) angle β and β _{s}. We find that the longitudinal polarization fractions f _{0} are suppressed to ~50% due to the large nonfactorizable contributions. The magnitudes and phases of the two transversemore »
 Authors:
 North China Univ. of Science and Technology, Tangshan (China)
 Nanjing Normal Univ., Nanjing (China)
 Publication Date:
 Research Org.:
 SLAC National Accelerator Lab., Menlo Park, CA (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 1398391
 Grant/Contract Number:
 GP201520; JP201512; A2014209308; 11235005; 11547020; 11605060; BJ2016041; AC0276SF00515
 Resource Type:
 Journal Article: Accepted Manuscript
 Journal Name:
 European Physical Journal. C, Particles and Fields
 Additional Journal Information:
 Journal Volume: 77; Journal Issue: 9; Journal ID: ISSN 14346044
 Publisher:
 Springer
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Rui, Zhou, Li, Ya, and Xiao, Zhen Jun. Branching ratios, CP asymmetries and polarizations of $B\rightarrow \psi (2S) V$ decays. United States: N. p., 2017.
Web. doi:10.1140/epjc/s100520175193y.
Rui, Zhou, Li, Ya, & Xiao, Zhen Jun. Branching ratios, CP asymmetries and polarizations of $B\rightarrow \psi (2S) V$ decays. United States. doi:10.1140/epjc/s100520175193y.
Rui, Zhou, Li, Ya, and Xiao, Zhen Jun. Thu .
"Branching ratios, CP asymmetries and polarizations of $B\rightarrow \psi (2S) V$ decays". United States.
doi:10.1140/epjc/s100520175193y. https://www.osti.gov/servlets/purl/1398391.
@article{osti_1398391,
title = {Branching ratios, CP asymmetries and polarizations of $B\rightarrow \psi (2S) V$ decays},
author = {Rui, Zhou and Li, Ya and Xiao, Zhen Jun},
abstractNote = {We analyze the nonleptonic decays B/Bs→ψ(2S)V with V=(ρ,ω,K*,Φ) by employing the perturbative QCD (pQCD) factorization approach. Here the branching ratios, the CP asymmetries and the complete set of polarization observables are investigated systematically. Besides the traditional contributions from the factorizable and nonfactorizable diagrams at the leading order, the nexttoleading order (NLO) vertex corrections could also provide considerable contributions. The pQCD predictions for the branching ratios of the B(s)→ψ(2S)K*,ψ(2S) decays are consistent with the measured values within errors. As for B→ψ(2S)ρ,ψ(2S)ω decays, the branching ratios can reach the order of 10–5 and could be measured in the LHCb and BelleII experiments. The numerical results show that the direct CP asymmetries of the considered decays are very small. Thus the observation of any large direct CP asymmetry for these decays will be a signal for new physics. The mixinginduced CP asymmetries in the neutral modes are very close to sin2β(s), which suggests that these channels can give a crosscheck on the measurement of the Cabbibo–Kobayashi–Maskawa (CKM) angle β and βs. We find that the longitudinal polarization fractions f0 are suppressed to ~50% due to the large nonfactorizable contributions. The magnitudes and phases of the two transverse amplitudes A∥ and A⊥ are roughly equal, which is an indication for the approximate lightquark helicity conservation in these decays. The overall polarization observables of B→ψ(2S)K*0 and Bs→ψ(2S)Φ channels are also in good agreement with the experimental measurements as reported by LHCb and BaBar. In conclusion, other results can also be tested by the LHCb and BelleII experiments.},
doi = {10.1140/epjc/s100520175193y},
journal = {European Physical Journal. C, Particles and Fields},
number = 9,
volume = 77,
place = {United States},
year = {Thu Sep 14 00:00:00 EDT 2017},
month = {Thu Sep 14 00:00:00 EDT 2017}
}

We present measurements of the branching fractions, longitudinal polarization, and direct CPviolation asymmetries for the decays B{sup +} {yields} {rho}{sup 0}K*{sup +} and B{sup +} f{sub 0}(980)K*{sup +} with a sample of (467 {+} 5) x 10{sup 6} B{bar B} pairs collected with the BABAR detector at the PEPII asymmetricenergy e{sup +}e{sup } collider at the SLAC National Accelerator Laboratory. We observe B{sup +} {yields} {rho}{sup 0}K*{sup +} with a significance of 5.3{sigma} and measure the branching fraction {Beta}(B{sup +} {yields} {rho}{sup 0}K*{sup +}) = (4.6 {+} 1.0 {+} 0.4) x 10{sup 6}, the longitudinal polarization f{sub L} = 0.78more »

Measurements of Branching Fractions, Polarizations, and Direct CPViolation Asymmetries in B{yields}{rho}K* and B{yields}f{sub 0}(980)K* Decays
We report searches for Bmeson decays to the charmless final states {rho}K* and f{sub 0}(980)K* with a sample of 232x10{sup 6} BB pairs collected with the BABAR detector at the PEPII e{sup +}e{sup } collider. We measure in units of 10{sup 6} the following branching fractions, where the first error quoted is statistical and the second systematic, or upper limits are given at the 90% confidence level : B(B{sup +}{yields}{rho}{sup 0}K*{sup +})<6.1, B(B{sup +}{yields}{rho}{sup +}K*{sup 0})=9.6{+}1.7{+}1.5, B(B{sup 0}{yields}{rho}{sup }K*{sup +})<12.0, B(B{sup 0}{yields}{rho}{sup 0}K*{sup 0})=5.6{+}0.9{+}1.3, B(B{sup +}{yields}f{sub 0}(980)K*{sup +})=5.2{+}1.2{+}0.5, and B(B{sup 0}{yields}f{sub 0}(980)K*{sup 0})<4.3. For the significant modes, we also measuremore » 
Measurements of branching fractions, polarizations, and direct CPviolation asymmetries in B{sup +}{yields}{rho}{sup 0}K{sup *+} and B{sup +}{yields}f{sub 0}(980)K{sup *+} decays
We present measurements of the branching fractions, longitudinal polarization, and direct CPviolation asymmetries for the decays B{sup +}{yields}{rho}{sup 0}K*{sup +} and B{sup +}{yields}f{sub 0}(980)K*{sup +} with a sample of (467{+}5)x10{sup 6}BB pairs collected with the BABAR detector at the PEPII asymmetricenergy e{sup +}e{sup } collider at the SLAC National Accelerator Laboratory. We observe B{sup +}{yields}{rho}{sup 0}K{sup *+} with a significance of 5.3{sigma} and measure the branching fraction B(B{sup +}{yields}{rho}{sup 0}K{sup *+})=(4.6{+}1.0{+}0.4)x10{sup 6}, the longitudinal polarization f{sub L}=0.78{+}0.12{+}0.03, and the CPviolation asymmetry A{sub CP}=0.31{+}0.13{+}0.03. We observe B{sup +}{yields}f{sub 0}(980)K*{sup +} and measure the branching fraction B(B{sup +}{yields}f{sub 0}(980)K*{sup +})xB(f{sub 0}(980){yields}{pi}{sup +}{pi}{supmore » 
Observation of B{sup +}{r_arrow}{psi}(2S)K{sup +} and B{sup 0}{r_arrow}{psi}(2S)K{sup {asterisk}}(892){sup 0} decays and measurements of Bmeson branching fractions into J/{psi} and {psi}(2S) final states
We report the observations of the decays B{sup +}{r_arrow}{psi}(2S)K{sup +} and B{sup 0}{r_arrow}{psi}(2S)K{sup {asterisk}}(892){sup 0} in p{bar p} collisions at a centerofmass energy of 1.8 TeV using a 110thinsppb{sup {minus}1} data sample recorded by the Collider Detector at Fermilab. We also reconstruct the decays B{sup +}{r_arrow}J/{psi}K{sup +} and B{sup 0}{r_arrow}J/{psi}K{sup {asterisk}}(892){sup 0} and measure the six ratios of branching fractions of these four decays. The relative branchingfraction results are shown to be consistent with phenomenological factorization calculations of hadronic Bmeson decays. We use the worldaverage branching fraction B(B{sup +}{r_arrow}J/{psi}K{sup +}) to derive B{bold (}B{sup +}{r_arrow}{psi}(2S)K{sup +}{bold )}=(0.56{plus_minus}0.08{plus_minus}0.10){times}10{sup {minus}3}, B{bold (}B{supmore »