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2024-10-09
16:46
Design, fabrication and RF measurements of the storage and correction cavity prototypes of the RF pulse compression system for the klystron-based CLIC main linac / Wang, Ping ; Grudiev, Alexej (CERN) ; Riffaud, Benoit (CERN) ; Berthome, Emmanuel ; Motschmann, Fritz ; Syratchev, Igor (CERN) ; Scibor, Karol (CERN) ; Giordanino, Laurene ; Catalan Lasheras, Nuria (CERN) ; Morales Sanchez, Pedro (CERN)
An RF pulse compression system based on double-height waveguides was studied for the Klystron-based CLIC main linac. [...]
CERN-ACC-2024-0003 ; CLIC-Note-1198. - 2024 - 17.
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2024-10-09
15:09
Gravitational waves from decaying sources in strong phase transitions / Caprini, Chiara (Geneva U. ; CERN) ; Jinno, Ryusuke (Kobe U.) ; Konstandin, Thomas (DESY) ; Roper Pol, Alberto (Geneva U.) ; Rubira, Henrique (Munich, Tech. U.) ; Stomberg, Isak (DESY)
We study the generation of gravitational waves (GWs) during a first-order cosmological phase transition (PT) using the recently introduced Higgsless approach to numerically evaluate the fluid motion induced by the PT. [...]
arXiv:2409.03651. - 55.
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2024-10-09
15:08
Cornering Relative Symmetry Theories / Cvetič, Mirjam (Pennsylvania U., Dept. Math. ; Pennsylvania U. ; Maribor U.) ; Donagi, Ron (Pennsylvania U., Dept. Math. ; Pennsylvania U.) ; Heckman, Jonathan J. (Pennsylvania U., Dept. Math. ; Pennsylvania U.) ; Hübner, Max (Pennsylvania U., Dept. Math.) ; Torres, Ethan (CERN)
The symmetry data of a $d$-dimensional quantum field theory (QFT) can often be captured in terms of a higher-dimensional symmetry topological field theory (SymTFT). [...]
UPR-1331-TH ; CERN-TH-2024-139 ; arXiv:2408.12600. - 105.
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2024-10-09
15:08
Comment on "Quantum-Mechanical Suppression of Gas Accretion by Primordial Black Holes" / Cline, James M. (McGill U. ; CERN)
It was recently claimed (arXiv:2409.09081v1 [astro-ph.HE]) that accretion of ordinary matter on black holes of mass $(6\times 10^{14}-4\times10^{19})\,$g would be inhibited by quantum mechanical effects, namely the de Broglie wavelength of the electron being larger than the Schwarzschild radius. [...]
arXiv:2409.12989. - 1.
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2024-10-09
15:08
From angular coefficients to quantum observables: a phenomenological appraisal in di-boson systems / Grossi, Michele (CERN) ; Pelliccioli, Giovanni (Garching, Max Planck Inst.) ; Vicini, Alessandro (Milan U.)
Motivated by the growing interest in accessing the spin structure of multi-boson processes and in measuring quantum entanglement at high energies, we study polarisation and spin-correlation coefficients in di-boson systems. [...]
COMETA-2024-24 ; MPP-2024-183 ; TIF-UNIMI-2024-15 ; arXiv:2409.16731. - 27.
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2024-10-09
15:03
Fully upgraded $\beta$-NMR setup at ISOLDE for high-precision high-field studies / Jankowski, M. (CERN ; Darmstadt, Tech. U.) ; Azaryana, N. (Mickiewicz U., Poznan) ; Baranowski, M. (CERN ; Mickiewicz U., Poznan) ; Bissell, M.L. (CERN ; Manchester U.) ; Brand, H. (Darmstadt, GSI) ; Chojnacki, M. (CERN ; Geneva U.) ; Croese, J. (CERN ; Geneva U. ; TNO/TPD Space Instrum.) ; Dziubinska-Kühn, K.M. (CERN ; Leipzig U. ; Maastricht U.) ; Karg, B. (Geneva U.) ; Madurga Flores, M. (Tennessee U.) et al.
$\beta$-NMR is an advancing technique that enables measurements relevant to various fields of research, ranging from physics to chemistry and biology. [...]
arXiv:2410.00186. - 15.
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2024-10-09
15:02
Post-irradiation examination of a prototype tantalum-clad target for the Beam Dump Facility at CERN / Griesemer, Tina (CERN) ; Franqueira Ximenes, Rui (CERN) ; Arnau Izquierdo, Gonzalo (CERN) ; Aviles Santillana, Ignacio (CERN) ; Brehm, Thomas (Erlangen - Nuremberg U.) ; Gallifa Terricabras, Adria (CERN) ; Höll, Stefan (CERN) ; Jacobsson, Richard (CERN) ; Kaiser, Marco (Erlangen - Nuremberg U.) ; Kuchar, Roman (Erlangen - Nuremberg U.) et al.
The Beam Dump Facility (BDF) is a planned fixed-target installation in CERN's North Area, set to start operating in 2031. [...]
arXiv:2410.01964. - 16.
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2024-10-09
15:01
Quantum integration of decay rates at second order in perturbation theory / de Lejarza, Jorge J. Martínez (Valencia U., IFIC) ; Rentería-Estrada, David F. (Valencia U., IFIC) ; Grossi, Michele (CERN) ; Rodrigo, Germán (Valencia U., IFIC)
We present the first quantum computation of a total decay rate in high-energy physics at second order in perturbative quantum field theory. [...]
arXiv:2409.12236. - 6.
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2024-10-09
15:00
Calibration and Performance of the Upgraded ALICE Inner Tracking System / Triolo, Andrea Sofia (CERN)
The ALICE Experiment at the Large Hadron Collider (LHC) underwent a major upgrade during the Long Shutdown 2. [...]
arXiv:2409.19810. - 9.
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2024-10-09
14:59
Understanding time-resolved images of AWAKE proton bunches / Turner, M. (CERN) ; Muggli, P. (Munich, Max Planck Inst.)
This article details how images of proton microbunch trains obtained from streak camera measurements may differ from actual microbunch trains inside the plasma, at the plasma exit. [...]
arXiv:2409.18771. - 7.
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