2025-01-31
05:02 |
Is gauge mediation in the swampland?
/ Dalianis, Ioannis (Athens U.) ; Farakos, Fotis (Padua U. ; INFN, Padua) ; Kehagias, Alex (Natl. Tech. U., Athens)
We note that the typical gauge mediation of supersymmetry breaking is in tension with the global limit of the festina lente swampland bound. The alternatives are mediation/breaking schemes that decouple together with gravity, as for example gravity mediation, for which we highlight some basic phenomenological properties. [...]
arXiv:2305.17089; CERN-TH-2023-106.-
2023-07-13 - 7 p.
Fulltext: PDF;
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2025-01-31
04:33 |
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2025-01-29
05:07 |
Are Parton Showers Inside a Quark-Gluon Plasma Strongly Coupled? A Theorist's Test
/ Arnold, Peter (Virginia U.) ; Elgedawy, Omar (Virginia U. ; South China Normal U. ; Cape Town U., Dept. Math. ; Guangzhou U.) ; Iqbal, Shahin (Quaid-i-Azam U. ; CERN)
We study whether in-medium showers of high-energy quarks and gluons can be treated as a sequence of individual splitting processes or whether there is significant quantum overlap between where one splitting ends and the next begins. Accounting for the Landau-Pomeranchuk-Migdal (LPM) effect, we calculate such overlap effects to leading order in high-energy $\alpha_s(\mu)$ for the simplest theoretical situation. [...]
arXiv:2501.15115; CERN-TH-2024-163.-
2024-12-17 - 7 p.
- Published in : PoS: ICHEP2024 (2025) , pp. 582
Fulltext: 2501.15115 - PDF; document - PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.582
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2025-01-01
04:33 |
Top-quark pole mass extraction at NNLO accuracy
/ Alekhin, Sergey (Hamburg U., Inst. Theor. Phys. II) ; Garzelli, Maria Vittoria (Hamburg U., Inst. Theor. Phys. II ; CERN) ; Mazzitelli, Javier (PSI, Villigen) ; Moch, Sven-Olaf (Hamburg U., Inst. Theor. Phys. II) ; Zenaiev, Oleksandr (Hamburg U., Inst. Theor. Phys. II)
We describe our recent NNLO QCD extraction of the top-quark pole mass from fits to experimental data on total inclusive and normalized (multi)-differential cross sections for $t\bar{t} + X$ hadroproduction, using as input various modern PDF + $\alpha_s(M_Z)$ sets. We find top-quark mass values compatible among each other and with the PDG 2024 preferred value..
arXiv:2412.20259; CERN-TH-2024-225.-
2024-12-31 - 6 p.
- Published in : PoS: LHCP2024 (2025) , pp. 320
Fulltext: 2412.20259 - PDF; document - PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, United States, 3 - 7 Jun 2024, pp.320
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-12-21
04:16 |
NNLO fits of top-quark mass using total, single-differential and double-differential $t\bar{t}+X$ cross-section data
/ Alekhin, Sergey (Hamburg U., Inst. Theor. Phys. II) ; Garzelli, Maria Vittoria (Hamburg U., Inst. Theor. Phys. II ; CERN ; Cagliari U.) ; Mazzitelli, Javier (PSI, Villigen) ; Moch, Sven-Olaf (Hamburg U., Inst. Theor. Phys. II) ; Zenaiev, Oleksandr (Hamburg U., Inst. Theor. Phys. II)
We describe the fits of the top-quark mass value at NNLO using as input the double-differential distributions in rapidity and invariant mass of $t\bar{t}$ pairs obtained by the ATLAS and CMS collaborations from unfolding of their experimental data to the parton level, compared to NNLO theory predictions. We consider different state-of-the-art PDF sets, finding results of the fits compatible among each other within uncertainties. [...]
arXiv:2412.14348; CERN-TH-2024-220.-
2024-12-29 - 4 p.
- Published in : PoS ICHEP2024 (2024) 393
Fulltext: 2412.14348 - PDF; document - PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.393
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-11-01
04:13 |
Event generation with Sherpa 3
/ Sherpa Collaboration
Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarise new developments, essential features, and ongoing improvements within the Sherpa 3 release series. [...]
arXiv:2410.22148; IPPP/24/67; LTH-1385; FERMILAB-PUB-24-0748-T; ZU-TH 51/24; MCNET-24-17; CERN-TH-2024-171.-
2024-12-20 - 55 p.
- Published in : JHEP 2412 (2024) 156
Fulltext: 2410.22148 - PDF; ab734587330dddd7c27e53d99cd0646e - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-10-25
12:03 |
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-10-22
04:21 |
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-10-12
09:15 |
Frozen Generalized Symmetries
/ Cvetič, Mirjam (Pennsylvania U., Dept. Math. ; Pennsylvania U. ; Maribor U.) ; Dierigl, Markus (Munich U., ASC ; CERN) ; Lin, Ling (Bologna U. ; INFN, Bologna) ; Torres, Ethan (CERN) ; Zhang, Hao Y. (Tokyo U., IPMU)
M-theory frozen singularities are (locally) $D$- or $E$-type orbifold singularities with a background fractional $C_3$-monodromy surrounding them. In this paper, we revisit such backgrounds and address several puzzling features of their physics. [...]
arXiv:2410.07318; UPR-1332-T; LMU-ASC 16/24; CERN-TH-2024-145.-
2025-01-15 - 45 p.
- Published in : Phys. Rev. D 111 (2025) 026018
Fulltext: 2410.07318 - PDF; Publication - PDF;
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დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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2024-09-26
06:53 |
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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