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2024-07-13
04:26
A Decade of Collectivity in Small Systems / Grosse-Oetringhaus, Jan Fiete (CERN) ; Wiedemann, Urs Achim (CERN)
Signatures of collectivity, including azimuthally anisotropic and radial flow as well as characteristic hadrochemical dependencies, have been observed since long in (ultra)relativistic nucleus-nucleus collisions. [...]
CERN-TH-2024-110 ; arXiv:2407.07484.
- 81 p.
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2024-07-13
04:25
Non-universal SUSY models, $g_\mu-2$, $m_H$ and dark matter / Ellis, John (King's Coll. London ; CERN) ; Olive, Keith A. (Minnesota U.) ; Spanos, Vassilis C. (Minnesota U. ; Athens U.)
We study the anomalous magnetic moment of the muon, $g_\mu - 2 \equiv 2 a_\mu$, in the context of supersymmetric models beyond the CMSSM, where the unification of either the gaugino masses $M_{1,2,3}$ or sfermion and Higgs masses is relaxed, taking into account the measured mass of the Higgs boson, $m_H$, the cosmological dark matter density and the direct detection rate. [...]
KCL-PH-TH/2024-41 ; CERN-TH-2024-109 ; UMN-TH-4325/24 ; FTPI-MINN-24/16 ; arXiv:2407.08679.
- 34 p.
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2024-07-09
04:23
An event generator for neutrino-induced Deep Inelastic Scattering and applications to neutrino astronomy / Ferrario Ravasio, Silvia (CERN) ; Gauld, Rhorry (Garching, Max Planck Inst.) ; Jäger, Barbara (Tubingen U.) ; Karlberg, Alexander (CERN) ; Zanderighi, Giulia (Garching, Max Planck Inst. ; Munich, Tech. U.)
We extend the recently presented, fully exclusive, next-to-leading-order accurate event generator for the simulation of massless neutral- and charged-current deep inelastic scattering (DIS) to the case of incoming neutrinos. [...]
CERN-TH-2024-091 ; MPP-2024-121 ; arXiv:2407.03894.
- 16 p.
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2024-07-09
04:22
Gravitational waves from inflation in LISA: reconstruction pipeline and physics interpretation / Braglia, Matteo (New York U., CCPP) ; Calcagni, Gianluca (Madrid, Inst. Estructura Materia) ; Franciolini, Gabriele (CERN) ; Fumagalli, Jacopo (Barcelona U.) ; Nardini, Germano ; Peloso, Marco (Padua U. ; Padua U., Astron. Dept. ; INFN, Padua) ; Pieroni, Mauro (CERN) ; Renaux-Petel, Sébastien (Stavanger U. ; Paris, Inst. Astrophys.) ; Ricciardone, Angelo (ICC, Barcelona U. ; Padua U. ; Padua U., Astron. Dept. ; Pisa U. ; INFN, Pisa) ; Tasinato, Gianmassimo (Swansea U. ; Bologna U. ; INFN, Bologna ; U. Bologna, DIFA) et al.
Various scenarios of cosmic inflation enhance the amplitude of the stochastic gravitational wave background (SGWB) at frequencies detectable by the LISA detector. [...]
LISA-COSWG-24-03 ; CERN-TH-2024-072 ; arXiv:2407.04356.
- 82 p.
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2024-07-05
05:30
Neutrino emission in cold neutron stars: Bremsstrahlung and modified urca rates reexamined / Bottaro, Salvatore (Tel Aviv U.) ; Caputo, Andrea (CERN) ; Fiorlillo, Damiano (Bohr Inst.)
Neutrino emission in cold neutron stars is dominated by the modified urca (murca) process and nucleon-nucleon bremsstrahlung. [...]
CERN-TH-2024-092 ; arXiv:2406.18640.
- 30 p.
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2024-07-05
05:22
On Measuring Distances in the Quantum Gravity Landscape / Mohseni, Amineh (Harvard U., Phys. Dept. ; CERN) ; Montero, Miguel (Madrid, IFT) ; Vafa, Cumrun (Harvard U., Phys. Dept.) ; Valenzuela, Irene (Madrid, IFT ; CERN)
In this note, we propose a generalized notion of distance between vacua in the theory of a scalar field $\phi$ with scalar potential $V(\phi)$ coupled to gravity. [...]
arXiv:2407.02705 ; IFT-24-097 ; CERN-TH-2024-101.
- 27 p.
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2024-07-05
05:22
The three-loop single-mass heavy flavor corrections to deep-inelastic scattering / Ablinger, J. ; Behring, A. ; Blümlein, J. ; De Freitas, A. ; von Manteuffel, A. ; Schneider, C. ; Schoenwald, K.
We report on the status of the calculation of the massive Wilson coefficients and operator matrix elements for deep-inelastic scatterung to three-loop order [...]
CERN-TH-2024-100 ; ZU-TH 31/24 ; RISC Report number 24-04 ; PoS (LL2024) 047 ; DESY-24-096, ; arXiv:2407.02006.
- 12 p.
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2024-07-03
04:35
Towards the next Kira release / Lange, Fabian (Zurich U. ; PSI, Villigen) ; Usovitsch, Johann (CERN) ; Wu, Zihao (HIAS, UCAS, Hangzhou)
The reduction of Feynman integrals to a basis of master integrals plays a crucial role for many high-precision calculations and Kira is one of the leading tools for this task. [...]
arXiv:2407.01395 ; ZU-TH 32/24 ; PSI-PR-24-14 ; CERN-TH-2024-096.
- 13 p.
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2024-07-02
04:38
Nonleptonic $B$-meson decays to next-to-next-to-leading order / Egner, Manuel ; Fael, Matteo (CERN) ; Schönwald, Kay (Zurich U.) ; Steinhauser, Matthias
We compute next-to-next-to-leading order QCD corrections to the partonic processes $b\to c \bar{u} d$ and $b\to c \bar{c} s$, which constitute the dominant decay channels in standard model predictions for $B$-meson lifetimes within the heavy quark expansion. [...]
CERN-TH-2024-089 ; P3H-24-041 ; TTP24-020 ; ZU-TH 30/24 ; arXiv:2406.19456.
- 39 p.
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2024-06-29
04:53
Light and strange vector resonances from lattice QCD at physical quark masses / Boyle, Peter (Brookhaven ; Edinburgh U.) ; Erben, Felix (Edinburgh U. ; CERN) ; Gülpers, Vera (Edinburgh U.) ; Hansen, Maxwell T. (Edinburgh U.) ; Joswig, Fabian (Edinburgh U.) ; Lachini, Nelson Pitanga (Edinburgh U. ; Cambridge U., DAMTP) ; Marshall, Michael (Edinburgh U.) ; Portelli, Antonin (Edinburgh U. ; CERN ; RIKEN AICS, Kobe)
We present the first ab initio calculation at physical quark masses of scattering amplitudes describing the lightest pseudoscalar mesons interacting via the strong force in the vector channel. [...]
CERN-TH-2024-088 ; arXiv:2406.19194.
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