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2025-11-15
05:55
$L_μ-L_τ$ gauge bosons in beam dumps and supernovae / Blinov, Nikita (York U., Canada) ; Fox, Patrick J. (Fermilab) ; Kelly, Kevin J. (Texas A-M) ; Plestid, Ryan (Caltech ; CERN) ; Zhou, Tao (Texas A-M ; Cincinnati U.)
We study the phenomenology of a sub-GeV $L_μ-L_τ$ gauge boson. [...]
FERMILAB-PUB-25-0818-T ; MI-HET-869 ; CALT-TH/2025-034 ; CERN-TH-2025-229 ; arXiv:2511.09619. - 16.
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2025-11-15
05:33
Eigenfunctions of deformed Schrödinger equations / François, Matijn (U. Geneva (main) ; CERN) ; Grassi, Alba (U. Geneva (main) ; CERN) ; Pedroni, Tommaso (SISSA, Trieste ; INFN, Trieste ; IGaP, Trieste)
We study the spectral problems associated with the finite-difference operators $H_N = 2 \cosh(p) + V_N(x)$, where $V_N(x)$ is an arbitrary polynomial potential of degree $N$. [...]
CERN-TH-2025-230 ; arXiv:2511.10636. - 38.
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2025-11-15
04:21
Bounds on Discrete Gauge Symmetries in Supergravity / Baykara, Zihni Kaan (Harvard U. (main)) ; Dierigl, Markus (CERN) ; Kim, Hee-Cheol (POSTECH, Pohang) ; Vafa, Cumrun (Harvard U. (main)) ; Xu, Kai (Harvard U. (main))
We place bounds on the order of enhanced discrete gauge symmetries that act on massless fields and thus arise at subloci of the moduli space in supergravity theories. [...]
CERN-TH-2025-233 ; arXiv:2511.09613. - 31.
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2025-11-13
05:07
QCD String Axions and $M$-theory / Acharya, Bobby Samir (ICTP, Trieste) ; Torres, Ethan (CERN)
In $SU(N)$ Yang-Mills theory without matter, there exist stable long electric fluxtube strings which carry a 1-form symmetry charge. [...]
CERN-TH-2025-218 ; arXiv:2511.08566. - 11.
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2025-11-13
04:44
Jet quenching in out-of-equilibrium QCD matter / Barata, João (CERN) ; Boguslavski, Kirill (SUBATECH, Nantes ; Vienna, Tech. U.) ; Lindenbauer, Florian (Vienna, Tech. U. ; MIT, Cambridge, CTP) ; Sadofyev, Andrey V. (LIP, Lisbon ; Basque U., Bilbao ; IKERBASQUE, Bilbao)
We present the first study of jet substructure modifications during the bottom-up evolution that describes the early stages of heavy-ion collisions. [...]
CERN-TH-2025-140 ; MIT-CTP/5953 ; arXiv:2511.07519. - 19.
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2025-11-12
05:01
Magnusian: Relating the Eikonal Phase, the On-Shell Action, and the Scattering Generator / Kim, Jung-Wook (CERN ; Potsdam, Max Planck Inst.) ; Patil, Raj (Potsdam, Max Planck Inst. ; Humboldt U., Berlin) ; Scheopner, Trevor (Potsdam, Max Planck Inst.) ; Steinhoff, Jan (Potsdam, Max Planck Inst.)
Two fundamentally distinct quantities are both called "eikonal" in present amplitudes literature. [...]
CERN-TH-2025-226 ; HU-EP-25/37-RTG ; arXiv:2511.05649. - 35.
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2025-11-12
05:01
The size of the quark-gluon plasma in ultracentral collisions: impact of initial density fluctuations on the average transverse momentum / Zhou, Fabian (U. Heidelberg, ITP) ; Giacalone, Giuliano (CERN) ; Ollitrault, Jean-Yves (IPhT, Saclay)
Recent experiments have shown that the mean transverse momentum $\langle p_T\rangle$ of outgoing particles increases as a function of the particle multiplicity in ultracentral nucleus-nucleus collisions at collider energies. [...]
arXiv:2511.04605 ; CERN-TH-2025-228. - 11.
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2025-11-11
05:27
Large-Scale Structure Probes of the Post-Inflationary Axiverse / Gorghetto, Marco (DESY) ; Trifinopoulos, Sokratis (CERN ; Zurich U.) ; Valogiannis, Georgios (Chicago U. ; Chicago U., KICP)
We study the cosmology of axions in the post-inflationary scenario, where random initial conditions and the ensuing string-domain-wall network generate an isocurvature power spectrum. [...]
DESY-25-147 ; CERN-TH-2025-193 ; arXiv:2511.04734. - 32.
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2025-11-11
05:23
The $Zα^2$ correction to superallowed beta decays in effective field theory and implications for $|V_{ud}|$ / Cao, Zehua (Kentucky U.) ; Hill, Richard J. (Kentucky U. ; Fermilab) ; Plestid, Ryan (Caltech ; CERN) ; Vander Griend, Peter (Kentucky U. ; Fermilab)
Superallowed ($0^+\rightarrow0^+$) beta decays currently provide the most precise extraction of quark mixing in the Standard Model. [...]
FERMILAB-PUB-25-0773-T ; CALT-TH-2025-032 ; CERN-TH-2025-20 ; arXiv:2511.05446. - 21.
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2025-11-11
04:30
Fast and Flexible Neutrino Decoupling Part I: The Standard Model / Escudero, M. (CERN) ; Jackson, G. (SUBATECH, Nantes) ; Laine, M. (U. Bern (main)) ; Sandner, S. (Los Alamos)
Cosmological determinations of the number of relativistic neutrino species, $N^{ }_{\rm eff}$, are becoming increasingly accurate, and further improvements are expected both from CMB and BBN data. [...]
LA-UR-25-30442 ; CERN-TH-2025-225 ; arXiv:2511.04747. - 34.
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