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Posledne pridané:
2024-12-07
04:40
Finiteness and the Emergence of Dualities / Delgado, Matilda (Garching, Max Planck Inst. ; Harvard U., Phys. Dept.) ; van de Heisteeg, Damian (Harvard U., Phys. Dept.) ; Raman, Sanjay (Harvard U., Phys. Dept.) ; Torres, Ethan (CERN) ; Vafa, Cumrun (Harvard U., Phys. Dept.) ; Xu, Kai (Harvard U., Phys. Dept.)
We argue that the finiteness of quantum gravity (QG) amplitudes in fully compactified theories (at least in supersymmetric cases) leads to a bottom-up prediction for the existence of non-trivial dualities. [...]
MPP-2024-224 ; CERN-TH-2024-204 ; arXiv:2412.03640.
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2024-12-04
05:14
Quantum corrections to DGKT and the Weak Gravity Conjecture / Montero, Miguel (Madrid, IFT) ; Valenzuela, Irene (Madrid, IFT ; CERN)
We study D4 brane domain walls in the scale-separated 4d $\mathcal{N}$=1 AdS$_4$ DGKT scenario. [...]
IFT-24-155 ; CERN-TH-2024-190 ; arXiv:2412.00189.
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2024-12-04
05:09
Constraints on the Pre-Big Bang scenario from a cosmological interpretation of the NANOGrav data / Conzinu, P. (INFN, Parma ; U. Parma (main)) ; Fanizza, G. (U. Lisbon (main)) ; Gasperini, M. (INFN, Bari ; U. Bari (main)) ; Pavone, E. (INFN, Bari ; U. Bari (main)) ; Tedesco, L. (INFN, Bari ; U. Bari (main)) ; Veneziano, G. (CERN ; College de France)
We discuss a recently proposed interpretation of the signal detected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) as due to a relic stochastic background of primordial gravitons, produced in the context of the string cosmology pre-big bang scenario. [...]
CERN-TH-2024-210 ; BA-TH/809-24 ; arXiv:2412.01734.
- 19.
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2024-12-04
05:05
Extra dimensional axion patterns / de Giorgi, Arturo (Durham U. (main)) ; Ramos, Maria (CERN)
We study for the first time the $\textit{complete}$ parameter space of a bulk extra-dimensional axion. [...]
IPPP/24/75 ; CERN-TH-2024-205 ; arXiv:2412.00179.
- 20.
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2024-11-28
04:29
Renormalisation group evolution of the shape function $g_{17}$ in $\bar{B}\to X_s \gamma$ and $\bar{B} \to X_s \ell^+\ell^-$ at subleading power / Bartocci, Riccardo (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Böer, Philipp (CERN) ; Hurth, Tobias (U. Mainz, PRISMA ; Mainz U., Inst. Phys.)
We derive and solve the renormalisation-group (RG) equation of the shape function $g_{17}(\omega,\omega_1;\mu)$, which appears at subleading power in the factorization of the inclusive decays $\bar{B} \to X_s \gamma$ and $\bar B \to X_s \ell^+\ell^-$. [...]
MITP/24-078 ; CERN-TH-2024-191 ; arXiv:2411.16634.
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2024-11-23
04:25
Bounds on the bubble wall velocity / Ai, Wen-Yuan (King's Coll. London) ; Laurent, Benoit (McGill U., Montreal (main)) ; van de Vis, Jorinde (CERN)
Determining the bubble wall velocity in first-order phase transitions is a challenging task, requiring the solution of (coupled) equations of motion for the scalar field and Boltzmann equations for the particles in the plasma. [...]
CERN-TH-2024-198 ; KCL-PH-TH/2024-57 ; arXiv:2411.13641.
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2024-11-22
04:22
A generalized picture of colour decoherence in dense QCD media / Abreu, Samuel (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Mayo López, Xoán (Santiago de Compostela U., IGFAE) ; Milhano, Guilherme (LIP, Lisbon ; Lisbon, IST) ; Soto-Ontoso, Alba (Granada U., Theor. Phys. Astrophys.)
We revisit the calculation of the soft gluon emission probability off a colour-singlet $q\bar q$ system that evolves in a quark-gluon plasma. [...]
arXiv:2410.24135 ; CERN-TH-2024-185.
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2024-11-22
04:20
The two-loop fully differential soft function for $Q\bar{Q}V$ production at lepton colliders / Liu, Ze Long (Beijing, Inst. High Energy Phys.) ; Monni, Pier Francesco (CERN)
We consider the production of a pair of heavy quarks $Q\bar{Q}$ in association with a generic colour singlet system $V$ at lepton colliders, and present the first analytic calculation of the two-loop soft function differential in the total momentum of the real radiation. [...]
CERN-TH-2024-203 ; arXiv:2411.13466.
- 15.
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2024-11-20
04:02
A Cell Resampler study of Negative Weights in Multi-jet Merged Samples / Andersen, Jeppe R. (Durham U. (main) ; CERN) ; Cueto, Ana (U. Autonoma, Madrid (main)) ; Jones, Stephen P. (Durham U. (main)) ; Maier, Andreas (Barcelona, IFAE ; Barcelona, Autonoma U.)
We study the use of cell resampling to reduce the fraction of negatively weighted Monte Carlo events in a generated sample typical of that used in experimental analyses. [...]
CERN-TH-2024-200 ; IPPP/24/73 ; arXiv:2411.11651.
- 11.
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2024-11-15
04:01
Strange and charm quark contributions to the muon anomalous magnetic moment in lattice QCD with twisted-mass fermions / Extended Twisted Mass Collaboration (ETMC) Collaboration
We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon in isospin symmetric QCD. [...]
CERN-TH-2024-197 ; arXiv:2411.08852.
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