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2026-04-21
17:34
Search for quantum black holes in lepton+jet final states using proton-proton collisions at $\sqrt{s}=13.6$ TeV with the ATLAS detector
A search for quantum black holes in electron+jet or muon+jet final states with high invariant mass is performed. [...]
CERN-EP-2026-053. - 2026
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2026-04-21
04:08
Standard Model W, Z (+jet) at CMS and ATLAS / Verstege, Cedric (KIT, Karlsruhe, ETP)
Recent measurements of Standard Model W and Z boson production performed by the ATLAS and CMS Collaborations at the CERN Large Hadron Collider are reviewed. [...]
arXiv:2604.15426 ; CMS-CR-2026-038. - 4.
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2026-04-21
04:08
Narrowband searches for continuous gravitational waves from known pulsars in the first two parts of the fourth LIGO--Virgo--KAGRA observing run / LIGO Scientific Collaboration
Rotating non-axisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). [...]
arXiv:2603.25938 ; LIGO-P2500612. - 30.
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2026-04-20
12:28
Interaction of the CERN Large Hadron Collider (LHC) beam with the beam dump block : Memorandum / Assmann, R (CERN) ; Ferrari, A (CERN) ; Goddard, B (CERN) ; Schmidt, R (CERN) ; Tahir, N A (GSI)
The LHC will start to operate at CERN during 2008. [...]
CERN/DG-2008-196-O. - 2008 - 4.
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2026-04-20
12:19
Implications of LHC heavy ion data for multi-strange baryon production
Prior to the start of LHC operations, the good agreement of measurements of particle production at RHIC and other accelerators with simple thermodynamic models allowed one to constrain severely any production of hypothetical strangelets in heavy ion collisions at the LHC. [...]
2011 - 2.
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2026-04-20
11:02
Study of the $B^0\to \Lambda_c^+ \bar\Lambda_c^- K^0_S$ decay
The decay $B^0 \to \Lambda_c^+ \bar{\Lambda}_c^- K_S^0$ is studied at LHCb for the first time using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of $\sqrt{s} = 13$ TeV, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. [...]
arXiv:2604.15040 ; CERN-EP-2026-073 ; LHCB-PAPER-2025-072. - 2026 - 22.
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2026-04-18
04:39
Search for heavy resonances decaying into four-lepton final states via light bosons in proton-proton collisions at $\sqrt{s}$ = 13 TeV / CMS Collaboration
A search for a resonance heavier than 250 GeV decaying into four leptons via two intermediate bosons is presented. [...]
arXiv:2604.14236 ; CMS-EXO-24-006 ; CERN-EP-2026-072. - 33.
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2026-04-18
04:38
The Spurion Massive EFT (SMEFT) / Northey, Julian L. (Technion) ; Shadmi, Yael (Technion) ; Soreq, Yotam (Technion ; CERN) ; Ueda, Daiki (Technion)
We use the amplitude formulation of the SMEFT to introduce a spurion analysis of the SMEFT low-energy amplitudes in terms of the Higgs VEV. [...]
CERN-TH-2026-054 ; arXiv:2604.14274. - 25.
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2026-04-18
04:37
Probing $τ$ lepton dipole moments at future Lepton Colliders / Buttazzo, Dario (INFN, Pisa) ; Levati, Gabriele (Bern U.) ; Ma, Yang (Louvain U., CP3) ; Maltoni, Fabio (Louvain U., CP3 ; Bologna U. ; INFN, Bologna ; CERN) ; Paradisi, Paride (U. Padua (main) ; INFN, Padua) ; Wang, ZeQiang (Louvain U., CP3)
The electric and magnetic dipole moments of the electron and of the muon provide stringent tests of the Standard Model and sensitive probes of new physics. [...]
IRMP-CP3-26-07 ; CERN-TH-2026-089 ; COMETA-2026-06 ; arXiv:2604.14281. - 8.
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2026-04-18
04:33
Charmonium radiative transitions to dileptons from lattice QCD: The case of $h_c \to \eta_c \ell^+\ell^-$ and $\chi_{c1} \to J/\psi\,\ell^+\ell^-$ / Bečirević, D. (IJCLab, Orsay ; CERN ; U. Paris-Saclay) ; Di Palma, R. (INFN, Rome ; Rome U.) ; Frezzotti, R. (Rome U., Tor Vergata) ; Gagliardi, G. (INFN, Rome3) ; Lubicz, V. (INFN, Rome) ; Sanfilippo, F. (INFN, Rome3) ; Tantalo, N. (Rome U., Tor Vergata)
We present a lattice QCD study of dilepton production in charmonium transitions, specifically focusing on the $1^{+-} \to 0^{-+}$ and $1^{++} \to 1^{--}$ processes: $h_c \to η_c \ell^+ \ell^-$ and $χ_{c1} \to J/ψ\ell^+ \ell^-$, where $\ell = e, μ$. [...]
arXiv:2604.15256. - 29.
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