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2022-01-21
04:07
Constraints on Single-Field Inflation from the BOSS Galaxy Survey / Cabass, Giovanni (Princeton, Inst. Advanced Study) ; Ivanov, Mikhail M. ; Philcox, Oliver H.E. ; Simonović, Marko ; Zaldarriaga, Matias
Non-local primordial non-Gaussianity (NLPNG) is a smoking gun of interactions in single-field inflationary models, and can be written as a combination of the equilateral and orthogonal templates. [...]
arXiv:2201.07238 ; CERN-TH-2022-005. - 7 p.
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2022-01-21
04:06
Singlet channel scattering in a Composite Higgs model on the lattice / Drach, Vincent (Plymouth U.) ; Fritzsch, Patrick (Plymouth U. ; Trinity Coll., Dublin) ; Rago, Antonio (Plymouth U. ; CERN) ; Romero-López, Fernando (Valencia U., IFIC)
We present the first calculation of the scattering amplitude in the singlet channel beyond QCD. The calculation is performed in $SU(2)$ gauge theory with $N_f=2$ fundamental Dirac fermions and based on a finite-volume scattering formalism. [...]
arXiv:2107.09974; CERN-TH-2021-221.- 2022-01-19 - 10 p. - Published in : Eur. Phys. J. C 82 (2022) 47 Fulltext: document - PDF; 2107.09974 - PDF;

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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. These primordial black holes (PBHs), if light enough, would have evaporated by now because of the emission of Hawking radiation; thus they could not represent a sizable fraction of dark matter today. [...]
arXiv:2201.04946; CERN-TH-2021-169.- 2022 - 6 p. - Published in : PoS EPS-HEP2021 (2022) 147 Fulltext: document - PDF; 2201.04946 - PDF;
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021, pp.147

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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 (CERN) ; Lin, Weikang (Shanghai Jiao Tong U.) ; Yanagida, Tsutomu T. (Shanghai Jiao Tong U. ; Tokyo U.)
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. - 28 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 (Pittsburgh U.) ; Gluza, Janusz (Silesia U.) ; Grzanka, Krzysztof (Silesia U.) ; Hidding, Martijn (Uppsala U.) ; Usovitsch, Johann (CERN)
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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