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2024-06-12
04:54
Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap / Kurkela, Aleksi (Stavanger U.) ; Rajagopal, Krishna (MIT, Cambridge, CTP ; CERN) ; Steinhorst, Rachel (MIT, Cambridge, CTP)
We demonstrate that astrophysical constraints on the dense-matter equation of state place an upper bound on the color-superconducting gap in dense matter above the transition from nuclear matter to quark matter. [...]
arXiv:2401.16253 ; MIT-CTP/5671. - 8 p.
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2024-06-12
04:51
Normalizing Flows for High-Dimensional Detector Simulations / Ernst, Florian (U. Heidelberg, ITP ; CERN) ; Favaro, Luigi (U. Heidelberg, ITP) ; Krause, Claudius (U. Heidelberg, ITP ; Vienna, OAW) ; Plehn, Tilman (U. Heidelberg, ITP) ; Shih, David (Rutgers U., Piscataway)
Whenever invertible generative networks are needed for LHC physics, normalizing flows show excellent performance. [...]
arXiv:2312.09290. - 24 p.
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2024-06-12
04:51
Laboratory realization of relativistic pair-plasma beams / Arrowsmith, C.D. (Oxford U.) ; Simon, P. (CERN ; Darmstadt, GSI) ; Bilbao, P. (Lisbon, IST) ; Bott, A.F.A. (Oxford U.) ; Burger, S. (CERN) ; Chen, H. (LLNL, Livermore) ; Cruz, F.D. (Lisbon, IST) ; Davenne, T. (Rutherford) ; Efthymiopoulos, I. (CERN) ; Froula, D.H. (Rochester U.) et al.
Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with such pair plasmas. [...]
arXiv:2312.05244. - 14 p.
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2024-06-12
04:51
Gravitational wave background from primordial black holes in globular clusters / Vanzan, Eleonora (Padua U. ; INFN, Padua) ; Libanore, Sarah (Padua U. ; Ben Gurion U. of Negev) ; Valbusa Dall'Armi, Lorenzo (Padua U. ; INFN, Padua) ; Bellomo, Nicola (Padua U. ; INFN, Padua ; U. Texas, Austin (main) ; Texas U.) ; Raccanelli, Alvise (Padua U. ; INFN, Padua ; Padua Observ. ; CERN)
Primordial black holes still represent a viable candidate for a significant fraction, if not for the totality, of dark matter. [...]
arXiv:2405.13871. - 36 p.
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2024-06-12
04:51
Causality Bounds on Dissipative General-Relativistic Magnetohydrodynamics / Cordeiro, Ian (Illinois U., Urbana (main)) ; Speranza, Enrico (CERN ; Illinois U., Urbana (main)) ; Ingles, Kevin (Illinois U., Urbana (main)) ; Bemfica, Fábio S. (Rio Grande do Norte U.) ; Noronha, Jorge (Illinois U., Urbana (main))
We determine necessary and sufficient conditions under which a large class of relativistic generalizations of Braginskii's magnetohydrodynamics, described using Israel-Stewart theory, are causal and strongly hyperbolic in the fully nonlinear regime in curved spacetime. [...]
arXiv:2312.09970. - 14 p.
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2024-06-12
04:50
Higgs cross-section ( including di-Higgs ) with CMS and ATLAS / Lange, Torben (NICPB, Tallinn)
Since the discovery of the Higgs boson in 2012 by the ATLAS and CMS Collaborations a lot of progress has been made in verifying the nature of this new bosonic particle. [...]
arXiv:2406.06172 ; CMS CR -2024/070. -
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2024-06-12
04:50
Self-interacting dark matter solves the final parsec problem of supermassive black hole mergers / Alonso-Álvarez, Gonzalo (Toronto U. ; McGill U.) ; Cline, James M. (McGill U. ; CERN) ; Dewar, Caitlyn (McGill U.)
Evidence for a stochastic gravitational wave (GW) background, plausibly originating from the merger of supermassive black holes (SMBHs), is accumulating with observations from pulsar timing arrays. [...]
arXiv:2401.14450 ; CERN-TH-2024-016. - 5 p.
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2024-06-12
04:50
Parameterized quantum circuits as universal generative models for continuous multivariate distributions / Barthe, Alice (U. Leiden (main) ; CERN ; Leiden U.) ; Grossi, Michele (CERN) ; Vallecorsa, Sofia (CERN) ; Tura, Jordi (U. Leiden (main) ; Leiden U.) ; Dunjko, Vedran (U. Leiden (main) ; Leiden U.)
Parameterized quantum circuits have been extensively used as the basis for machine learning models in regression, classification, and generative tasks. [...]
arXiv:2402.09848. - 13 p.
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2024-06-12
04:49
Timing-based mass measurement of exotic long-lived particles at the FCC-ee / Aleksan, Roy (IRFU, Saclay) ; Perez, Emmanuel (CERN) ; Polesello, Giacomo (INFN, Pavia) ; Valle, Nicolò (INFN, Pavia)
The very high luminosity run foreseen at the $Z$-pole for the FCC-ee will allow the detection in $Z$ decays of new particles with very low couplings to the Standard Model. [...]
arXiv:2406.05102. - 16 p.
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2024-06-12
04:49
Single channel PICOSEC Micromegas detector with improved time resolution / Utrobicic, A. (Boskovic Inst., Zagreb) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Bortfeldt, J. (Munich U.) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Datta, J. (SUNY, Stony Brook) ; Dehmelt, K. (Jefferson Lab) ; Fanourakis, G. (American Coll. of Greece) et al.
This paper presents design guidelines and experimental verification of a single-channel PICOSEC Micromegas (MM) detector with an improved time resolution. [...]
arXiv:2406.05657. - 29 p.
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