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2025-08-04
15:07
Amplitude analysis of the $\Xi^+_c\to pK^-\pi^+$ decay and $\Xi^+_c$ baryon polarization measurement in semileptonic beauty-hadron decays
An amplitude analysis of the $\Xi^+_c\to pK^-\pi^+$ decay together with a measurement of the $\Xi^+_c$ polarization vector in semileptonic beauty-hadron decays is presented. [...]
CERN-EP-2024-320 ; LHCB-PAPER-2024-034. - 2025
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2025-08-02
04:49
One-Loop Calculations in Effective Field Theories with GoSam-3.0 / Braun, Jens (KIT, Karlsruhe, TP) ; Campillo Aveleira, Benjamin (KIT, Karlsruhe, TP) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Höfer, Marius (KIT, Karlsruhe, TP) ; Jones, Stephen P. (Durham U., IPPP) ; Kerner, Matthias (KIT, Karlsruhe, TP) ; Lang, Jannis (KIT, Karlsruhe, TP) ; Magerya, Vitaly (CERN)
We present a major update of the one-loop generator GoSam, containing performance improvements as well as new features, in particular functionalities that facilitate calculations beyond the Standard Model in Effective Field Theory frameworks..
arXiv:2507.23549 ; KA-TP-21-2025 ; P3H-25-051 ; IPPP/25/50 ; CERN-TH-2025-134. - 23.
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2025-08-01
04:32
Rapid-cycling ReBCO dipole magnet concept for muon acceleration / Piekarz, Henryk (Fermilab) ; Otten, Simon (Twente U., Enschede ; CERN) ; Kario, Anna (Twente U., Enschede ; CERN) ; ten Kate, Herman (Twente U., Enschede ; CERN)
We present a concept of the rapid-cycling 1.7 T ReBCO magnet for 1 to 10 kT/s ramping range as required for muon acceleration in a future muon collider presently under study. [...]
FERMILAB-CONF-25-0446-AD ; arXiv:2507.20895. -
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2025-08-01
04:32
Measuring Light-Meson Resonances in the $\omega \pi^-\pi^0$ and $K_S^0 K^-$ Final States at COMPASS / Beckers, Julien (Tech. U., Munich (main)) ; Haas, Philipp (Tech. U., Munich (main))
COMPASS is a multi-purpose fixed-target experiment at the CERN SPS. [...]
arXiv:2507.21936. - 6.
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2025-08-01
04:26
Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons / Höche, Stefan (Fermilab) ; Krauss, Frank (Durham U., IPPP) ; Meinzinger, Peter (Zurich U.) ; Reichelt, Daniel (CERN)
We present the first next-to-leading order matched and multi-jet merged predictions based on the Alaric parton shower. [...]
arXiv:2507.22837 ; FERMILAB-PUB-25-0479-T ; IPPP-25-49 ; ZU-TH 49/25 ; CERN-TH-2025-141 ; MCNET-25-18. - 17.
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2025-07-31
06:15
Single-photon loading of polar molecules into an optical trap / Schellenberg, Bart J (Nikhef, Amsterdam ; U. Groningen (main)) ; Prinsen, Eifion H (Nikhef, Amsterdam ; U. Groningen (main)) ; Nauta, Janko (CERN) ; Pašteka, Lukáš F (U. Groningen (main) ; Nikhef, Amsterdam ; Comenius U.) ; Borschevsky, Anastasia (U. Groningen (main) ; Nikhef, Amsterdam) ; Hoekstra, Steven (U. Groningen (main) ; Nikhef, Amsterdam)
We propose a scheme to transfer molecules from a slow beam into an optical trap using only a single photon absorption and emission cycle. [...]
arXiv:2507.17521. - 2025 - 7.
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2025-07-31
04:44
BSM: Extended Scalar Sectors / Robens, Tania (Boskovic Inst., Zagreb ; CERN) ; Santos, Rui (Lisbon, ISEL ; Lisbon U., CFTC)
In particle physics the world is described by a function, the Lagrangian. [...]
arXiv:2507.21910 ; RBI-ThPhys-2025-031 ; CERN-TH-2025-148. - 28.
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2025-07-31
04:43
Single-particle Non-linear Beam Dynamics / Giovannozzi, M. (CERN)
The investigation of single-particle dynamics in circular particle accelerators can be traced back to pioneering works in the 1950s. [...]
arXiv:2507.07758. - 40.
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2025-07-31
04:42
Superradiance Constraints from GW231123 / Caputo, Andrea (CERN ; U. Rome La Sapienza (main) ; INFN, Rome) ; Franciolini, Gabriele (CERN) ; Witte, Samuel J. (Oxford U., Theor. Phys. ; DESY ; Hamburg U., Inst. Theor. Phys. II)
Gravitational wave observations have recently revealed with high significance, and high precision, the existence of $\mathcal{O}(100) \, M_\odot$ rapidly rotating black holes, allowing gravitational wave events to be used for the first time to probe unexplored axion parameter space using the phenomenon known as black hole superradiance. [...]
CERN-TH-2025-147 ; DESY-25-110 ; arXiv:2507.21788. - 15.
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2025-07-31
04:42
Ultra High Energy Neutrino Event KM3-230213A as a Signal of Electroweak Vacuum Turbulence in Merging Black Hole Binaries / Sakharov, Alexander S. (Manhattan Coll., Riverdale ; CERN) ; Konoplich, Rostislav (Manhattan Coll., Riverdale ; New York U.) ; Gogberashvili, Merab (Javakhishvili State U. ; Tbilisi, Inst. Phys.)
The recent detection of the ultra-high-energy neutrino event KM3-230213A ($\sim$220 PeV) by KM3NeT telescope poses a challenge to conventional astrophysical models, particularly in light of the absence of similar $\gtrsim$100 PeV events in IceCube data, despite its larger exposure. [...]
arXiv:2506.23387. - 21.
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