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CERN Theory

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2020-10-29
05:41
Bayesian analysis of the spin distribution of LIGO/Virgo black holes / Garcia-Bellido, Juan ; Siles, Jose Francisco Nuño ; Ruiz Morales, Ester
Gravitational wave detection from binary black hole (BBH) inspirals has become routine thanks to the LIGO/Virgo interferometers. [...]
arXiv:2010.13811 ; IFT-UAM/CSIC-18-76 ; CERN-TH-2018-158. - 10 p.
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2020-10-29
05:41
Analytic integration of soft and collinear radiation in factorised QCD cross sections at NNLO / Magnea, Lorenzo ; Pelliccioli, Giovanni ; Signorile-Signorile, Chiara ; Torrielli, Paolo ; Uccirati, Sandro
Within the framework of local analytic sector subtraction, we present the full analytic integration of double-real and real-virtual local infrared counterterms that enter NNLO QCD computations with any number of massless final-state partons. [...]
arXiv:2010.14493 ; P3H-20-061 ; TTP20-036 ; CERN-TH-2020-178. - 42 p.
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2020-10-29
05:41
Combined Explanation of the $Z\to b\bar b$ Forward-Backward Asymmetry, the Cabibbo Angle Anomaly, $\tau\to\mu\nu\nu$ and $b\to s\ell^+\ell^-$ Data / Crivellin, Andreas ; Manzari, Claudio Andrea ; Alguero, Marcel ; Matias, Joaquim
In this article we propose a simple model which can provide a combined explanation of the $Z\to b\bar b$ forward-backward asymmetry, the Cabbibo Angle Anomaly (CAA), $\tau\to\mu\nu\nu$ and $b\to s\ell^+\ell^-$ data. [...]
arXiv:2010.14504 ; CERN-TH-2020-177 ; PSI-PR-20-18 ; UZ-TH 40/20. - 9 p.
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2020-10-22
04:02
Model-independent energy budget for LISA / Giese, Felix ; Konstandin, Thomas ; Schmitz, Kai ; van de Vis, Jorinde
We provide an easy method to obtain the kinetic energy fraction in gravitational waves, generated during a cosmological first-order phase transition, as a function of only the wall velocity and quantities that can be determined from the particle physics model at the nucleation temperature. [...]
arXiv:2010.09744 ; DESY-20-173 ; CERN-TH-2020-170. - 31 p.
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2020-10-21
04:31
The Schwarzschild-Tangherlini metric from scattering amplitudes in various dimensions / Mougiakakos, Stavros ; Vanhove, Pierre
We derive the static Schwarzschild-Tangherlini metric by extracting the classical contributions from the multi-loop vertex functions of a graviton emitted from a massive scalar field. [...]
arXiv:2010.08882 ; IPhT-t20/053 ; CERN-TH-2020-168. - 44 p.
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2020-10-21
04:31
Pole skipping away from maximal chaos / Choi, Changha ; Mezei, Márk ; Sárosi, Gábor
Pole skipping is a recently discovered subtle effect in the thermal energy density retarded two point function at a special point in the complex $(\omega,p)$ planes. [...]
arXiv:2010.08558 ; CERN-TH-2020-171. - 39 p.
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2020-10-17
04:07
Scalar Leptoquarks in Leptonic Processes / Crivellin, Andreas (CERN ; Zurich U. ; PSI, Villigen) ; Greub, Christoph (U. Bern, AEC) ; Müller, Dario (Zurich U. ; PSI, Villigen) ; Saturnino, Francesco (U. Bern, AEC)
Leptoquarks are hypothetical new particles, which couple quarks directly to leptons. [...]
arXiv:2010.06593 ; CERN-TH-2020-167 ; PSI-20-17 ; ZU-TH 38/20. - 60 p.
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2020-10-15
04:27
The Present and Future of Four Tops / Banelli, Giovanni (Munich, Tech. U.) ; Salvioni, Ennio (CERN) ; Serra, Javi (Munich, Tech. U.) ; Theil, Tobias (Munich, Tech. U.) ; Weiler, Andreas (Munich, Tech. U.)
We study the phenomenology of a strongly-interacting top quark at future hadron and lepton colliders, showing that the characteristic four-top contact operators give rise to the most significant effects. [...]
arXiv:2010.05915 ; TUM-HEP-1286-20 ; CERN-TH-2020-166. - 33 p.
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2020-10-14
04:08
Transverse spin in the light-ray OPE / Chang, Cyuan-Han (Caltech, Pasadena (main)) ; Kologlu, Murat (Oxford U., Inst. Math.) ; Kravchuk, Petr (Princeton, Inst. Advanced Study) ; Simmons-Duffin, David (Caltech, Pasadena (main)) ; Zhiboedov, Alexander (CERN)
We study a product of null-integrated local operators $\mathcal{O}_1$ and $\mathcal{O}_2$ on the same null plane in a CFT. [...]
arXiv:2010.04726 ; CALT-TH 2020-039 ; CERN-TH-2020-164. - 100 p.
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2020-10-06
04:30
Applications of dispersive sum rules: $\epsilon$-expansion and holography / Carmi, Dean (EPFL, Lausanne, FSL ; Haifa U.) ; Penedones, Joao (EPFL, Lausanne, FSL) ; Silva, Joao A. (EPFL, Lausanne, FSL) ; Zhiboedov, Alexander (CERN)
We use Mellin space dispersion relations together with Polyakov conditions to derive a family of sum rules for Conformal Field Theories (CFTs). [...]
arXiv:2009.13506 ; CERN-TH-2020-162. - 36 p.
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