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2026-05-05
13:28
Study of $t\bar{t}$ threshold effects in $e\mu$ differential distributions measured in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
The recent ATLAS measurement of the normalised $e\mu$ dilepton invariant mass and azimuthal angle distributions in $\sqrt{s}=13$ TeV $pp$ collisions at the Large Hadron Collider is extended to study the sensitivity to the formation of quasi-bound states near the $t\bar{t}$ threshold. [...]
CERN-EP-2026-107. - 2026
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2026-05-05
11:07
Measurement of $\gamma$ using $B^\pm \to D K^\pm$ and $B^\pm \to D \pi^\pm$ decays with $D \to K_{\rm S}^0 \pi^+\pi^-$ and $D \to K_{\rm S}^0 K^+K^-$
A measurement of the CKM angle $\gamma$ using the decay channels $B^{\pm}\rightarrow DK^{\pm}$ and $B^{\pm}\rightarrow D\pi^{\pm}$, where the $D$ meson decays to $D\rightarrow K_{\rm S}^{0}\pi^{+}\pi^{-}$ or $D\rightarrow K_{\rm S}^{0}K^{+}K^{-}$, is performed with a data sample corresponding to an integrated luminosity of 5.8 fb$^{-1}$, collected during 2024 by the upgraded LHCb experiment. [...]
CERN-EP-2026-110 ; LHCB-PAPER-2026-010. - 2026
Fulltext - Related data file(s) - Full text

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2026-05-05
06:11
Beam Loss Consequences / Lerner, Giuseppe (CERN)
The operation of high-energy and high-intensity particle accelerators inevitably leads to the loss of a fraction of beam particles, either through controlled processes or accidental events. [...]
arXiv:2604.22490. - 2026 - 12.
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2026-05-05
06:11
Performance Evaluation of Straw Tubes with Muon Beams at CERN / Zhang, Linnuo (Michigan U.) ; Li, Chihao (Michigan U.) ; Ge, Jiajin (Michigan U.) ; Azaryan, Tatiana (Tufts U.) ; Bautin, Vitalii (Dubna, JINR) ; Chukanov, Artem (Dubna, JINR) ; Dai, Tiesheng (Michigan U.) ; Enik, Temur (Inst. Nucl. Phys., Almaty ; Dubna, JINR) ; Guan, Liang (Michigan U.) ; Guo, Yuxiang (Michigan U.) et al.
We present results from two test beam campaigns that investigate the performance of straw tube detectors as potential candidates for an FCC-ee straw tracker. [...]
arXiv:2604.16245. - 2026 - 12.
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2026-05-05
06:11
Collimation / Fuster Martínez, Nuria (U. Valencia (main))
Collimation systems are essential in particle accelerators to safely and efficiently manage unavoidable beam losses during operation. [...]
arXiv:2603.04196. - 2026 - 15.
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2026-05-05
06:11
When is randomization advantageous in quantum simulation? / Paganelli, Francesco (CERN ; Leiden U.) ; Grossi, Michele (CERN) ; Giachero, Andrea (INFN, Milan Bicocca ; Milan Bicocca U. ; Unlisted, IT) ; O'Brien, Thomas E (Leiden U. ; Unlisted, DE) ; Kiss, Oriel (CERN ; Unlisted, DE ; U. Geneva (main))
We study the regimes in which Hamiltonian simulation benefits from randomization. [...]
arXiv:2604.07448. - 2026 - 15.
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2026-05-05
06:11
Hadron Colliders / Zerlauth, Markus (CERN) ; Brüning, Oliver (CERN)
In this paper we will provide an overview of the hadron colliders built to date and the design and operational challenges that each of these machines has faced. [...]
arXiv:2604.09105. - 2026 - 8.
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2026-05-05
06:10
Particle-Matter Interactions / Lerner, Giuseppe (CERN)
This lecture reviews the principles of particle-matter interactions, providing the essential physics background required to understand beam loss mechanisms in high-energy accelerators and their associated implications. [...]
arXiv:2604.22508. - 2026 - 12.
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2026-05-05
06:10
Kubernetes-Orchestrated Hybrid Quantum-Classical Workflows / Tejedor, Mar (Barcelona Supercomputing Ctr. ; Barcelona, Polytechnic U.) ; Grossi, Michele (CERN) ; Tüysüz, Cenk (CERN) ; Rocha, Ricardo (CERN) ; Vallecorsa, Sofia (CERN)
Hybrid quantum-classical workflows combine quantum processing units (QPUs) with classical hardware to address computational tasks that are challenging or infeasible for conventional systems alone. [...]
arXiv:2603.24206. - 2026 - 8.
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2026-05-05
04:47
Observation of the rare decay $\eta$ $\to$ $\mu^+\mu^-$e$^+$e$^-$ / CMS Collaboration
A first observation of the rare decay $η$ $\to$ $μ^+μ^-$e$^+$e$^-$ is reported by the CMS Collaboration at the CERN LHC. [...]
arXiv:2605.00615 ; CMS-BPH-24-001 ; CERN-EP-2026-023. - 33.
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