Warm Dark Matter Sterile Neutrinos in Electron Capture and Beta Decay Spectra by O. Moreno, E. Moya de Guerra, M. Ramón Medrano

“…We study the deexcitation spectrum in the considered cases of electron capture and the charged lepton spectrum in the case of Tritium beta decay. …”
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NLO QCD predictions for t t ¯ γ $$ t\overline{t}\gamma $$ with realistic photon isolation by Daniel Stremmer, Malgorzata Worek

“…Abstract We present a complete description of top quark pair production in association with a hard photon in the di-lepton decay channel. The calculation is performed at NLO QCD and includes all resonant and non-resonant Feynman diagrams, interferences, and finite-width effects of the top quarks and W ±/Z gauge bosons. …”
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Higher precision constraints on the tau $$g-2$$ g - 2 in LHC photon-initiated production: a full account of hadron dissociation and soft survival effects by L. A. Harland-Lang

“…Abstract We present the first calculation of photon-initiated $$\tau $$ τ pair production in the presence of non-zero anomalous magnetic ( $$a_\tau $$ a τ ) and/or electric dipole ( $$d_\tau $$ d τ ) moments of the $$\tau $$ τ lepton that accounts for the non-trivial interplay between these modifications with the soft survival factor and the possibility of dissociation of the hadron (proton or ion) beam. …”
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Constraining the Effective Mass of Majorana Neutrino with Sterile Neutrino Mass for Inverted Ordering Spectrum by Jaydip Singh

“…This observation would allow establishing physics beyond the standard model and phenomena like lepton number violation and Majorana nature of neutrino. …”
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Scrutinizing $$B^0$$ B 0 -meson flavor changing neutral current decay into scalar $$K_0^*(1430)$$ K 0 ∗ ( 1430 ) meson with $$b\rightarrow s \ell ^+\ell ^-(\nu \bar{\nu })$$ b → s... by Yin-Long Yang, Ya-Xiong Wang, Hai-Bing Fu, Tao Zhong, Ya-Lin Song

“…Furthermore, we calculate the $$B^0\rightarrow K_0^*(1430)\ell ^+\ell ^-(\nu \bar{\nu })$$ B 0 → K 0 ∗ ( 1430 ) ℓ + ℓ - ( ν ν ¯ ) decay widths, branching fractions, and longitudinal lepton polarization asymmetries of $$B^0\rightarrow K_0^*(1430)\ell ^+\ell ^-$$ B 0 → K 0 ∗ ( 1430 ) ℓ + ℓ - , which lead to $$\mathcal{B}(B^0\rightarrow K_0^*(1430)e^+e^-) = (6.65^{+2.52}_{-2.42})\times 10^{-7}$$ B ( B 0 → K 0 ∗ ( 1430 ) e + e - ) = ( 6 . 65 - 2.42 + 2.52 ) × 10 - 7 , $$\mathcal{B}(B^0\rightarrow K_0^*(1430)\mu ^+\mu ^-)=(6.62^{+2.51}_{-2.41})\times 10^{-7}$$ B ( B 0 → K 0 ∗ ( 1430 ) μ + μ - ) = ( 6 . 62 - 2.41 + 2.51 ) × 10 - 7 , $$\mathcal{B}(B^0\rightarrow K_0^*(1430)\tau ^+\tau ^-)=(1.88^{+1.10}_{-0.97})\times 10^{-8}$$ B ( B 0 → K 0 ∗ ( 1430 ) τ + τ - ) = ( 1 . 88 - 0.97 + 1.10 ) × 10 - 8 , $$\mathcal{B}(B^0\rightarrow K_0^*(1430)\nu \bar{\nu })= 3.85^{+1.55}_{-1.48}\times 10^{-6}$$ B ( B 0 → K 0 ∗ ( 1430 ) ν ν ¯ ) = 3 . 85 - 1.48 + 1.55 × 10 - 6 and the integrated longitudinal lepton polarization asymmetries $$\langle A_{P_L} \rangle = (-0.99, -0.96, -0.03)$$ ⟨ A P L ⟩ = ( - 0.99 , - 0.96 , - 0.03 ) for the cases $$\ell =(e, \mu , \tau )$$ ℓ = ( e , μ , τ ) respectively.…”
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Angular and CP-Violation Analyses of B-→D⁎+l-ν-l Decays at Hadron Collider Experiments by Daniele Marangotto

“…The B-→D⁎+l-ν-l branching fractions ratio between muon and tau lepton decay modes R(D⁎) has shown intriguing discrepancies between the Standard Model prediction and measurements performed at BaBar, Belle, and LHCb experiments, a possible sign of beyond the Standard Model physics. …”
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Electromagnetic Radiations from Heavy Ion Collision by Payal Mohanty, Sabyasachi Ghosh, Sukanya Mitra

“…In the calculations of interferometry involving dilepton pairs, it is argued that the nonmonotonic variation of HBT radii with invariant mass of the lepton pairs signals the formation of quark gluon plasma in HIC. …”
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Finite family groups for fermionic and leptoquark mixing patterns by Jordan Bernigaud, Ivo de Medeiros Varzielas, Jim Talbert

“…The phenomenology of different classes of these ‘simplified models’ can be explored without reference to explicit model-building assumptions, e.g. the nature of flavour symmetry breaking or any additional field content associated to it, and are also capable of explaining hints of lepton non-universality in R K ∗ $$ {\mathcal{R}}_{K^{\left(\ast \right)}} $$ . …”
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Deviations From μ‐τ Symmetry Using Δ27 Group on Neutrino Masses and Mixings by Ph. Wilina, N. Nimai Singh

“…The standard model particle content is extended by adding two additional Higgs doublets, three right-handed neutrinos, and two scalar triplets under Δ27 symmetry predicting diagonal charged lepton mass matrix. This can generate the desired deviation from μ‐τ symmetry. …”
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Inclusive photoproduction of vector quarkonium in ultra-peripheral collisions at the LHC by Jean-Philippe Lansberg, Kate Lynch, Charlotte Van Hulse, Ronan McNulty

“…Owing to the extremely large energies of the colliding hadrons circulating in the LHC, the range of accessible photon-nucleon centre-of-mass energies, $$W_{\gamma p}$$ W γ p , largely exceeds what has been and will be studied at lepton-hadron colliders, HERA and the EIC. We perform a tune to HERA photoproduction data, use this tune to predict the yields of photoproduced $$J/\psi $$ J / ψ , and estimate the corresponding transverse-momentum reach at LHC experiments. …”
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Flavoured leptogenesis and CPμτ symmetry by Rome Samanta, Manibrata Sen

“…Finally, we discuss another scenario where lepton asymmetry generated by N2 in the two flavour regime faces washout by N1 in the three flavour regime. …”
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Z′ Portal Dark Matter in the Minimal B-L Model by Satomi Okada

“…We consider a dark matter scenario in the context of the minimal extension of the Standard Model (SM) with a B-L (baryon number minus lepton number) gauge symmetry, where three right-handed neutrinos with a B-L charge -1 and a B-L Higgs field with a B-L charge +2 are introduced to make the model anomaly-free and to break the B-L gauge symmetry, respectively. …”
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Search for a light charged Higgs boson in $$t \rightarrow H^{\pm } b$$ t → H ± b decays, with $$H^{\pm } \rightarrow cs$$ H ± → c s , in $$pp$$ pp collisions at $$\sqrt{s}={13}\hbo... by ATLAS Collaboration

“…This search targets the production of top-quark pairs $$t\bar{t} \rightarrow Wb H^{\pm } b$$ t t ¯ → W b H ± b , with $$W \rightarrow \ell \nu $$ W → ℓ ν ( $$\ell = e, \mu $$ ℓ = e , μ ), resulting in a lepton-plus-jets final state characterised by an isolated electron or muon and at least four jets. …”
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Study of b⟶c Induced B¯∗⟶Vℓν¯ℓ Decays by Qin Chang, Xiao-Lin Wang, Jie Zhu, Xiao-Nan Li

“…We have also computed the branching fraction, lepton spin asymmetry, forward-backward asymmetry, and ratio RV∗L≡BB¯∗⟶Vτ−ν¯τ/BB¯∗⟶Vℓ′−ν¯ℓ′ℓ′=e,μ. …”
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Study some two loop contribution to muon anomalous MDM in the N-B-LSSM by Xing-Yu Han, Shu-Min Zhao, Long Ruan, Xi Wang, Xing-Xing Dong

“…We study the electroweak corrections from several type two-loop SUSY diagrams and the virtual SUSY particles include chargino, neutralino, scalar lepton and scalar neutrino. Based on the latest experimental constraints, we study the muon anomalous MDM under the next to the minimal supersymmetric extension of the SM with local B-L gauge symmetry (N-B-LSSM). …”
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Effective theory approach to new physics with flavour: general framework and a leptoquark example by Marzia Bordone, Oscar Catà, Thorsten Feldmann

“…However, when taking into account the different quark and lepton flavours, the number of free parameters in- creases dramatically, which makes generic studies of the NP flavour structure infeasible. …”
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Phase-transition-induced Collapse of Proto-compact Stars and Its Implication for Supernova Explosions by Xu-Run Huang, Shuai Zha, Ming-chung Chu, Evan P. O’Connor, Lie-Wen Chen

“…We systematically explore the outcomes of the PT-induced collapse of mock proto-compact stars (PCSs) with a constant entropy and lepton fraction, with spherically symmetric general relativistic hydrodynamic simulations and a controlled series of hybrid equations of state. …”
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Form factors of $$\varLambda _b^0 \rightarrow \varLambda _c(2595)^+$$ Λ b 0 → Λ c ( 2595 ) + within light-cone QCD sum rules by Hui-Hui Duan, Yong-Lu Liu, Qin Chang, Ming-Qiu Huang

“…With the branching fractions of $$\varLambda _b^0 \rightarrow \varLambda _c(2595)^+ \ell ^- \bar{\nu }_\ell $$ Λ b 0 → Λ c ( 2595 ) + ℓ - ν ¯ ℓ calculated in this work, we also determined the parameter $$\mathcal {R}(\varLambda _c(2595)^+)$$ R ( Λ c ( 2595 ) + ) which tests the lepton flavor universality. This parameter is defined as the ratio of branching fractions $$\mathcal {B}r(\varLambda _b^0 \rightarrow \varLambda _c(2595)^+\tau ^-\bar{\nu }_\tau )$$ B r ( Λ b 0 → Λ c ( 2595 ) + τ - ν ¯ τ ) and $$\mathcal {B}r(\varLambda _b^0 \rightarrow \varLambda _c(2595)^+\mu ^-\bar{\nu }_\mu )$$ B r ( Λ b 0 → Λ c ( 2595 ) + μ - ν ¯ μ ) . …”
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The 0ν2β-decay CROSS experiment: preliminary results and prospects by The CROSS collaboration, I. C. Bandac, A. S. Barabash, L. Bergé, M. Brière, C. Bourgeois, P. Carniti, M. Chapellier, M. de Combarieu, I. Dafinei, F. A. Danevich, N. Dosme, D. Doullet, L. Dumoulin, F. Ferri, A. Giuliani, C. Gotti, P. Gras, E. Guerard, A. Ianni, H. Khalife, S. I. Konovalov, E. Legay, P. Loaiza, P. de Marcillac, S. Marnieros, C. A. Marrache-Kikuchi, C. Nones, V. Novati, E. Olivieri, C. Oriol, G. Pessina, D. V. Poda, T. Redon, V. I. Tretyak, V. I. Umatov, M. M. Zarytsky, A. S. Zolotarova

“…Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied to future large-scale experiments searching for neutrinoless double-beta decay of the promising nuclei 100Mo and 130Te. …”
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The MAJORANA DEMONSTRATOR Neutrinoless Double-Beta Decay Experiment by N. Abgrall, E. Aguayo, F. T. Avignone, A. S. Barabash, F. E. Bertrand, M. Boswell, V. Brudanin, M. Busch, A. S. Caldwell, Y.-D. Chan, C. D. Christofferson, D. C. Combs, J. A. Detwiler, P. J. Doe, Yu. Efremenko, V. Egorov, H. Ejiri, S. R. Elliott, J. Esterline, J. E. Fast, P. Finnerty, F. M. Fraenkle, A. Galindo-Uribarri, G. K. Giovanetti, J. Goett, M. P. Green, J. Gruszko, V. E. Guiseppe, K. Gusev, A. L. Hallin, R. Hazama, A. Hegai, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, K. J. Keeter, M. F. Kidd, A. Knecht, O. Kochetov, S. I. Konovalov, R. T. Kouzes, B. D. LaFerriere, J. Leon, L. E. Leviner, J. C. Loach, P. N. Luke, S. MacMullin, R. D. Martin, S. Mertens, L. Mizouni, M. Nomachi, J. L. Orrell, C. O'Shaughnessy, N. R. Overman, David Phillips, A. W. P. Poon, K. Pushkin, D. C. Radford, K. Rielage, R. G. H. Robertson, M. C. Ronquest, A. G. Schubert, B. Shanks, T. Shima, M. Shirchenko, K. J. Snavely, N. Snyder, D. Steele, J. Strain, A. M. Suriano, J. Thompson, V. Timkin, W. Tornow, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, T. Williams, W. Xu, E. Yakushev, A. R. Young, C.-H. Yu, V. Yumatov

“…The observation of this rare decay would indicate that the neutrino is its own antiparticle, demonstrate that lepton number is not conserved, and provide information on the absolute mass scale of the neutrino. …”
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