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TH Preprints

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2022-01-19
08:05
Dark radiation constraints on light primordial black holes / Auffinger, Jérémy ; Arbey, Alexandre ; Sandick, Pearl ; Haghi, Barmak Shams Es ; Sinha, Kuver (Vrije U., Amsterdam ; Nikhef, Amsterdam)
Light black holes could have formed in the very early universe through the collapse of large primordial density fluctuations. [...]
arXiv:2201.04946 ; CERN-TH-2021-169. - 6 p.
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2022-01-15
04:02
Flavour anomalies in supersymmetric scenarioswith non-minimal flavour violation / Boussejra, M.A. ; Mahmoudi, F. ; Uhlrich, G.
Motivated by tensions between experimental measurements and SM predictions in $b\to s \ell^+\ell^-$ transitions, we present the first study of non-minimal flavour violating MSSM scenarios contributing to the relevant Wilson coefficients to address the observed anomalies using SuperIso and MARTY We calculate the full one-loop analytical contributions of the general MSSM to Wilson coefficients relevant for flavor anomalies, together with the anomalous muon magnetic dipole moment $(g-2)_\mu$. [...]
arXiv:2201.04659 ; CERN-TH-2022-001. - 31 p.
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2022-01-12
04:16
Discrete $R$-symmetry, Various Energy Scales and Gravitational Waves / Choi, Gongjun ; Lin, Weikang (Shanghai Jiao Tong U.) ; Yanagida, Tsutomu T.
We present a supersymmetric model where energy scales of a discrete $R$-symmetry breaking ($Z_{6R}$) and cosmic inflation are commonly attributed to the confinement scale of a hidden $Sp(2)$ strong dynamics. [...]
arXiv:2201.03083 ; CERN-TH-2022-002. - 22 p.
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2022-01-12
04:15
Evaluation of multi-loop multi-scale Feynman integrals for precision physics / Dubovyk, Ievgen (Silesia U.) ; Freitas, Ayres ; Gluza, Janusz (Silesia U.) ; Grzanka, Krzysztof ; Hidding, Martijn ; Usovitsch, Johann
Modern particle physics is increasingly becoming a precision science that relies on advanced theoretical predictions for the analysis and interpretation of experimental results. [...]
arXiv:2201.02576 ; CERN-TH-2021-230 ; UUITP-66/21. -
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2022-01-11
04:14
Analytic expansions of two- and three-particle excited-state energies / Grabowska, Dorota M. (CERN) ; Hansen, Maxwell T. (U. Edinburgh, Higgs Ctr. Theor. Phys.)
The last years have seen significant developments in methods relating two- and three-particle finite-volume energies to scattering observables. [...]
arXiv:2112.11996 ; CERN-TH-2021-228. - 13 p.
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2022-01-05
04:02
Higgs Properties and Supersymmetry: Constraints and Sensitivity from the LHC to an $e^+e^-$ Collider / Arbey, A. (IP2I, Lyon ; CERN) ; Battaglia, M. (IP2I, Lyon ; CERN ; UC, Santa Cruz) ; Djouadi, A. (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys. ; NICPB, Tallinn) ; Mahmoudi, F. (IP2I, Lyon ; CERN) ; Muhlleitner, M. (KIT, Karlsruhe) ; Spira, M. (PSI, Villigen)
The study of the Higgs boson properties offers compelling perspectives for testing the effects of physics beyond the Standard Model and has deep implications for the LHC program and future colliders. [...]
arXiv:2201.00070 ; CERN-TH-2021-227 ; PSI-PR-21-30. - 27 p.
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2022-01-04
04:16
Gravitational portals in the early Universe / Clery, Simon (IJCLab, Orsay) ; Mambrini, Yann (IJCLab, Orsay ; CERN) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Verner, Sarunas (Minnesota U., Theor. Phys. Inst.)
We consider the production of matter and radiation during reheating after inflation, restricting our attention solely to gravitational interactions. [...]
arXiv:2112.15214 ; UMN-TH-4110/22 ; FTPI-MINN-22/02 ; CERN-TH-2021-222. - 15 p.
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2021-12-28
04:01
Inferring nuclear structure from heavy isobar collisions using Trajectum / Nijs, Govert (MIT, Cambridge, CTP) ; van der Schee, Wilke (CERN)
Nuclei with equal number of baryons but varying proton number (isobars) have many commonalities, but differ in both electric charge and nuclear structure. [...]
arXiv:2112.13771 ; CERN-TH-2021-229 ; MIT-CTP/5383. - 7 p.
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2021-12-25
04:02
3HDM with $\Delta(27)$ symmetry and its phenomenological consequences / Kalinowski, J. (Warsaw U. ; CERN) ; Kotlarski, W. (Dresden, Tech. U. ; NCBJ, Warsaw) ; Rebelo, M.N. (Lisbon, CFTP) ; de Medeiros Varzielas, I. (Lisbon, CFTP)
We perform a thorough analysis of the 3-Higgs doublet model with a scalar potential invariant under a global $\Delta(27)$ discrete symmetry. [...]
arXiv:2112.12699 ; CERN-TH-2021-182. - 26 p.
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2021-12-24
09:18
Top-pair production at the LHC with MiNNLO$_{\rm PS}$ / Mazzitelli, Javier (Munich, Max Planck Inst.) ; Monni, Pier Francesco (CERN) ; Nason, Paolo (INFN, Milan Bicocca) ; Re, Emanuele (INFN, Milan Bicocca ; Annecy, LAPTH) ; Wiesemann, Marius (Munich, Max Planck Inst.) ; Zanderighi, Giulia (Munich, Max Planck Inst. ; Tech. U., Munich (main))
We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLO method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. [...]
arXiv:2112.12135 ; CERN-TH-2021-220,MPP-2021-211,LAPTH-046/21. - 55 p.
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