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Influence of tides and self-gravity on Ultra-Light Dark Matter Bounds from Dwarf Galaxies
/ Caputo, Andrea (CERN ; Weizmann Inst. ; U. Rome La Sapienza (main) ; INFN, Rome) ; Teodori, Luca (IAC, La Laguna ; Laguna U., Tenerife)
Dwarf spheroidal galaxies provide some of the most sensitive astrophysical probes of ultra-light dark matter (ULDM), but the inferred constraints can be affected by two important systematics: tidal interactions with the Milky Way, which reduce ULDM-induced dynamical heating, and stellar self-gravity, which can become relevant if the stellar component was more compact at earlier times. [...]
CERN-TH-2026-065 ; arXiv:2604.01278.
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Simulating Axion Electrodynamics in Magnetized Plasmas: Energy transfer in the inhomogeneous and strongly varying limit
/ Corelli, Fabrizio (U. Rome La Sapienza (main) ; Potsdam, Max Planck Inst. ; INFN, Rome) ; Ginés, Estanis Utrilla (Valencia U., IFIC) ; Cannizzaro, Enrico (Lisbon, CENTRA ; IST, Lisbon (main)) ; Caputo, Andrea (U. Rome La Sapienza (main) ; CERN ; Weizmann Inst. ; INFN, Rome) ; Witte, Samuel J. (Oxford U., Theor. Phys. ; DESY ; Hamburg U., Inst. Theor. Phys. II)
In this work we study the electromagnetic response induced by axions in a magnetized plasma, focusing specifically on characterizing energy transfer and energy losses from the ambient axion field in highly inhomogeneous and strongly varying backgrounds. [...]
DESY-26-046 ; CERN-TH-2026-069 ; arXiv:2603.26868.
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First-principle evaluation of inclusive hadronic $τ$ decays in QCD+QED
/ Di Carlo, Matteo (CERN) ; Bacchio, Simone (Cyprus Inst.) ; Bäske, Erik (Humboldt U., Berlin (main)) ; De Santis, Alessandro (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Evangelista, Antonio (Cyprus U.) ; Frezzotti, Roberto (INFN, Rome2 ; Rome U., Tor Vergata) ; Gagliardi, Giuseppe (INFN, Rome3) ; Holan, Lukas (Humboldt U., Berlin (main)) ; Lubicz, Vittorio (INFN, Rome3 ; Rome III U.) ; Maio, Lorenzo (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) et al.
We present a strategy to extend lattice calculations of inclusive hadronic $τ$ decays from isosymmetric QCD to QCD+QED. The inclusive decay rate can be related to suitable Euclidean correlation functions, allowing for a first-principles evaluation of electromagnetic and isospin-breaking effects. [...]
arXiv:2603.29016; CERN-TH-2026-067.-
2026-03-30 - 10 p.
- Published in : PoS: LATTICE2025 (2025) , pp. 249
Fulltext: PDF;
In : 42th International Symposium on Lattice Field Theory (Lattice 2025), Mumbai, India, 2 - 8 Nov 2025, pp.
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