Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ
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DOI: 10.1007/jhep03(2019)126
Abstract: A bstractUsing pp collisions corresponding to 3 fb−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions ℬΛb0→ψ2SΛ/ℬΛb0→J/ψΛ=0.513±0.023stat±0.016syst±0.011ℬ$$ \mathrm{\mathcal{B}}\left({\Lambda}_b^0\to \psi (2S)\Lambda \right)/\mathrm{\mathcal{B}}\left({\Lambda}_b^0\to J/\psi \Lambda… read more here.
Keywords: left mathrm; ratio branching; measurement ratio; mathrm mathcal ... See more keywords
Study of the rare decays of Bs0 and B0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector
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DOI: 10.1007/jhep04(2019)098
Abstract: A bstractA study of the decays Bs0 → μ+μ− and B0 → μ+μ− has been performed using 26.3 fb−1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016.… read more here.
Keywords: left right; mathrm mathcal; detector; decays bs0 ... See more keywords
Probing SUSY effects in KS0 → μ+μ−
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DOI: 10.1007/jhep05(2018)024
Abstract: A bstractWe explore supersymmetric contributions to the decay KS0 → μ+μ−, in light of current experimental data. The Standard Model (SM) predicts ℬKS0→μ+μ−≈5×10−12$$ \mathrm{\mathcal{B}}\left({K}_S^0\to {\mu}^{+}{\mu}^{-}\right)\approx 5\times {10}^{-12} $$. We find that contributions arising from flavour violating Higgs… read more here.
Keywords: left right; mathrm mathcal; susy effects; mathcal left ... See more keywords
Continuing search for new physics in b → sμμ decays: two operators at a time
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DOI: 10.1007/jhep06(2019)089
Abstract: A bstractThe anomalies in the measurements of observables involving b → sμμ decays, namely RK, RK*, P5′, and Bsϕ, may be addressed by adding lepton-universality-violating new physics contributions to the effective operators O9,O10,O9′,O10′$$ {\mathcal{O}}_{\mathcal{9}},{\mathcal{O}}_{10},{\mathcal{O}}_9^{\prime },{\mathcal{O}}_{10}^{\prime… read more here.
Keywords: mathcal prime; physics; new physics; mathrm mathcal ... See more keywords
Exploring transcendentality in superstring amplitudes
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DOI: 10.1007/jhep07(2019)149
Abstract: Abstract It is well known that the low energy expansion of tree-level superstring scattering amplitudes satisfies a suitably defined version of uniform transcendentality. In this paper it is argued that there is a natural extension… read more here.
Keywords: low energy; mathrm mathcal; transcendentality; energy expansion ... See more keywords
Representation growth of compact linear groups
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DOI: 10.1090/tran/7618
Abstract: We study the representation growth of simple compact Lie groups and of $\mathrm{SL}_n(\mathcal{O})$, where $\mathcal{O}$ is a compact discrete valuation ring, as well as the twist representation growth of $\mathrm{GL}_n(\mathcal{O})$. This amounts to a study… read more here.
Keywords: representation; zeta; mathrm mathcal; zeta functions ... See more keywords