Model of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>violation from an extra dimension

Chang, Darwin; Chen, Chian Shu; Chou, Chung Hsien; Hatanaka, Hisaki

doi:10.1103/physrevd.70.096010

Cited by 7 publications

(6 citation statements)

References 21 publications

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“…It is worth noting the arguments reported in ref. [18], where no evidence for a correlation between cosmic rays and DAMA result has been found 1 It is worth noting that in ref. [15] 28 June (179.0 days) is instead quoted as measured phase; actually, in our convention -coherent throughout the paper -179.0 days correspond to 00:00 of of 29 June (as, for example, t = 0.0 days is 00:00 of 1st of January and t = 1.0 days is 00:00 of 2nd of January).…”

Section: Why Muons Cannot Play Any Rolementioning

confidence: 99%

No role for muons in the DAMA annual modulation results

et al. 2012

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This paper gathers arguments and reasons why muons surviving the Gran Sasso mountain cannot mimic the Dark Matter annual modulation signature exploited by the DAMA/NaI and DAMA/LIBRA experiments. A number of these items have already been presented in individual papers. Further arguments have been addressed here in order to present a comprehensive collection and to enable a wider community to correctly approach this point.

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Section: Why Muons Cannot Play Any Rolementioning

confidence: 99%

No role for muons in the DAMA annual modulation results

et al. 2012

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“…The direct hadronic production of the B c meson has been studied systematically in Refs. [24][25][26][27][28][29]. Therefore, investigation of the heavy quarkonium production through H 0 decays is worthwhile and meaningful.…”

Section: Introductionmentioning

confidence: 99%

Heavy P -wave quarkonium production via Higgs decays

Liao

Deng

et al. 2018

Phys. Rev. D

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The production of the heavy quarkonium, i.e., jðcbÞ½ni (or jðbcÞ½ni), jðccÞ½ni, and jðbbÞ½ni-quarkonium [jðQQ 0 Þ½ni-quarkonium for short], through Higgs H 0 boson semiexclusive decays is evaluated within the nonrelativistic quantum chromodynamics (NRQCD) framework, where [n] stands for the production of the two color-singlet S-wave states, jðQQ 0 Þ½ 1 S 0 1 i and jðQQ 0 Þ½ 3 S 1 1 i, the production of the four color-singlet P-wave states, i.e., jðQQ 0 Þ½. Moreover, according to the velocity scaling rule of the NRQCD, the production of the two color-octet components, jðQQ 0 Þg½ 1 S 0 8 i and jðQQ 0 Þg½ 3 S 1 8 i, are also taken into account. The "improved trace technology" to derive the simplified analytic expressions at the amplitude level is adopted, which shall be useful for dealing with these decay channels. If all higher heavy quarkonium states decay completely to the ground states, it should be obtained ΓðH

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“…The B c meson is a doubly heavy quark-antiquark system and carries flavors explicitly. It has been pointed out that sizable B c meson events can be produced at the hadronic colliders [1][2][3]. Thus, it provides a useful laboratory for studying both the Quantum Chromodynamics (QCD) and the weak interaction theories.…”

Section: Introductionmentioning

confidence: 99%

QCD corrections to theBcto charmonia semileptonic decays

Shen

et al. 2014

Phys. Rev. D

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We present a detailed analysis on the Bc meson semi-leptonic decays, Bc → ηc(J/ψ)ℓν, up to next-to-leading order (NLO) QCD correction. We adopt the principle of maximum conformality (PMC) to set the renormalization scales for those decays. After applying the PMC scale setting, we determine the optimal renormalization scales for the Bc → ηc(J/ψ) transition form factors (TFFs). Because of the same β0-terms, the optimal PMC scales at the NLO level are the same for all those TFFs, i.e. µ PMC r ≈ 0.8GeV. We adopt a strong coupling model from the massive perturbation theory (MPT) to achieve a reliable pQCD estimation in this low energy region. Furthermore, we adopt a monopole form as an extrapolation for the Bc → ηc(J/ψ) TFFs to all their allowable q 2 region. Then, we predict Γ Bc→ηcℓν (ℓ = e, µ) = (71.53 +11.27 −8.90 ) × 10 −15 GeV, ΓB c→ηc τ ν = (27.14 +5.93 −4.33 ) × 10 −15 GeV, Γ Bc→J/ψℓν (ℓ = e, µ) = (106.31 +18.59 −14.01 ) × 10 −15 GeV, Γ Bc→J/ψτ ν = (28.25 +6.02 −4.35 ) × 10 −15 GeV, where the uncertainties are squared averages of all the mentioned error sources. We show that the present prediction of the production cross section times branching ratio for B + c → J/ψℓ + v relative to that for B + → J/ψK + , i.e. ℜ(J/ψℓ + ν), is in a better agreement with CDF measurements than the previous predictions.

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Model ofCPviolation from an extra dimension

Cited by 7 publications

References 21 publications

No role for muons in the DAMA annual modulation results

No role for muons in the DAMA annual modulation results

Heavy P -wave quarkonium production via Higgs decays

QCD corrections to theBcto charmonia semileptonic decays

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