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CERN Document Server 2,029 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.39 sekúnd. 
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Probing multi-particle unitarity with the Landau equations / Correia, Miguel (CERN ; EPFL, Lausanne, FSL) ; Sever, Amit (Tel Aviv U.) ; Zhiboedov, Alexander (CERN)
We consider the $2\to 2$ scattering amplitude of identical massive particles. We identify the Landau curves in the multi-particle region $16m^2 \leq s, t < 36m^2$. [...]
arXiv:2111.12100; CERN-TH-2021-197.- 2022-09-22 - 19 p. - Published in : SciPost Phys. 13 (2022) 062 Fulltext: document - PDF; 2111.12100 - PDF;
Úplný záznam - Podobné záznamy
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(91)
Two-parton scattering in the high-energy limit: climbing two- and three-Reggeon ladders / Falcioni, Giulio (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Maher, Niamh (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Milloy, Calum (Turin U. ; INFN, Turin) ; Vernazza, Leonardo (Turin U. ; INFN, Turin ; CERN)
We review recent progress on the calculation of scattering amplitudes in the high-energy limit. We start by illustrating the shockwave formalism, which allows one to calculate amplitudes as iterated solutions of rapidity evolution equations. [...]
arXiv:2111.05166.- 2022-06-20 - 22 p. - Published in : SciPost Phys. Proc. 7 (2022) 007 Fulltext: document - PDF; 2111.05166 - PDF;
In : 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology AND LoopFest XIX: Workshop on Radiative Corrections for the LHC and Future Colliders (Radcor and LoopFest 2021), Tallahassee, FL, United States, 16 - 21 May 2021
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3.
(54)
The Soft Anomalous Dimension at four loops in the Regge Limit / Maher, Niamh (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Falcioni, Giulio (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Milloy, Calum (INFN, Turin ; Turin U.) ; Vernazza, Leonardo (INFN, Turin ; CERN ; Turin U.)
The soft anomalous dimension governs the infrared divergences of scattering amplitudes in general kinematics to all orders in perturbation theory. By comparing the recent Regge-limit results for $2\to2$ scattering (through Next-to-Next-to-Leading Logarithms) in full colour to a general form for the soft anomalous dimension at four loops we derive powerful constraints on its kinematic dependence, opening the way for a bootstrap-based determination..
arXiv:2111.01517.- 2022-06-20 - 14 p.
- Published in : SciPost Phys. Proc.: 7 (2022) , pp. 013 Fulltext: document - PDF; 2111.01517 - PDF;
In : 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology AND LoopFest XIX: Workshop on Radiative Corrections for the LHC and Future Colliders (Radcor and LoopFest 2021), Tallahassee, FL, United States, 16 - 21 May 2021, pp.013
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4.
(52)
Sterile Neutrinos as Dark Matter Candidates / Kopp, Joachim (CERN ; Mainz U.)
In these brief lecture notes, we introduce sterile neutrinos as dark matter candidates. We discuss in particular their production via oscillations, their radiative decay, as well as possible observational signatures and constraints..
arXiv:2109.00767; CERN-TH-2021-127.- 2022-01-19 - 10 p.
- Published in : SciPost Phys. Lect. Notes: 36 (2022) , pp. 1 Fulltext: 2109.00767 - PDF; document - PDF;
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5.
(44)
Gravitational Regge bounds / Häring, Kelian (CERN ; ITPP, Lausanne) ; Zhiboedov, Alexander (CERN)
We review the basic assumptions and spell out the detailed arguments that lead to the bound on the Regge growth of gravitational scattering amplitudes. The minimal extra ingredient compared to the gapped case - in addition to unitarity, analyticity, subexponentiality, and crossing - is the assumption that scattering at large impact parameters is controlled by known semi-classical physics. [...]
arXiv:2202.08280; CERN-TH-2022-016.- 2024-01-26 - 46 p. - Published in : SciPost Phys. 16 (2024) 034 Fulltext: document - PDF; 2202.08280 - PDF;
Úplný záznam - Podobné záznamy
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(43)
Developments since Kira 2.0 / Lange, Fabian (KIT, Karlsruhe, TTP ; KIT, Karlsruhe, IAP) ; Maierhöfer, Philipp (Freiburg U.) ; Usovitsch, Johann (CERN)
Last year we released version 2.0 of the Feynman integral reduction program Kira. In this contribution we first report on changes and new features since then and, secondly, on new features for upcoming releases..
arXiv:2111.01045; CERN-TH-2021-178 ; TTP21-045; P3H-21-087; CERN-TH-2021-178; TTP21-045; P3H-21-087.- 2022-06-21 - 6 p. - Published in : SciPost Phys. Proc. 7 (2022) 017 Fulltext: 2111.01045 - PDF; document - PDF;
In : 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology AND LoopFest XIX: Workshop on Radiative Corrections for the LHC and Future Colliders (Radcor and LoopFest 2021), Tallahassee, FL, United States, 16 - 21 May 2021, pp.017
Úplný záznam - Podobné záznamy
7.
(41)
Regge poles in multi-particle scattering amplitudes / Swift, A R
DAMTP-74-16. - 1974. - 33 p.
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8.
(35)
Complementarity of Lepton-Charge and Forward-Backward Drell-Yan Asymmetries for Precision Electroweak Measurements and Quark Density Determinations / Fiaschi, Juri (Liverpool U., Dept. Math.) ; Giuli, Francesco (CERN ; INFN, Rome2 ; Rome U., Tor Vergata) ; Hautmann, Francesco (Antwerp U. ; Oxford U.) ; Moretti, Stefano (Southampton U.)
We address the impact of future measurements of charged and neutral current Drell-Yan (DY) asymmetries and their combination on Parton Distribution Functions (PDFs) uncertainties. We quantify the reduction of PDF uncertainties using the QCD tool xFitter. [...]
arXiv:2107.03099; LTH 1263.- 2022-07-12 - 6 p.
- Published in : SciPost Phys. Proc.: 8 (2022) , pp. 038 Fulltext: document - PDF; 2107.03099 - PDF;
In : XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, Online, Online, 12 - 16 Apr 2021, pp.038
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9.
(33)
Two-Loop QCD Corrections for Three-Photon Production at Hadron Colliders / Abreu, Samuel (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; De Laurentis, Giuseppe (PSI, Villigen) ; Ita, Harald (PSI, Villigen ; Zurich U.) ; Klinkert, Maximillian (Freiburg U.) ; Page, Ben (CERN) ; Sotnikov, Vasily (Zurich U. ; Michigan State U.)
We complete the computation of the two-loop helicity amplitudes for the production of three photons at hadron colliders, including all contributions beyond the leading-color approximation. We reconstruct the analytic form of the amplitudes from numerical finite-field samples obtained with the numerical unitarity method. [...]
arXiv:2305.17056; CERN-TH-2023-090; PSI-PR-23-16; ZU-TH 23/23.- 2023-10-12 - 37 p. - Published in : SciPost Phys. 15 (2023) 157 Fulltext: document - PDF; 2305.17056 - PDF; Publication - PDF;
Úplný záznam - Podobné záznamy
10.
(32)
Search for scalar induced gravitational waves in the International Pulsar Timing Array Data Release 2 and NANOgrav 12.5 years dataset / Dandoy, Virgile (KIT, Karlsruhe, IAP) ; Domcke, Valerie (CERN) ; Rompineve, Fabrizio (CERN ; Barcelona, IFAE ; Barcelona, Autonoma U.)
We perform a Bayesian search in the latest Pulsar Timing Array (PTA) datasets for a stochastic gravitational wave (GW) background sourced by curvature perturbations at scales $10^5~\text{Mpc}^{-1}\lesssim k\lesssim 10^8~\text{Mpc}^{-1}$. These re-enter the Hubble horizon at temperatures around and below the QCD crossover phase transition in the early Universe. [...]
arXiv:2302.07901; CERN-TH-2023-027.- 2023-08-30 - 32 p. - Published in : SciPost Phys. Core 6 (2023) 060 Fulltext: document - PDF; Publication - PDF; 2302.07901 - PDF;
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