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2025-02-25
16:56
Consolidation of the 400kA magnetic horn power supply for AD antiproton production / Grawer, Gregor (CERN) ; Boucly, Christophe (CERN) ; Carlier, Etienne (CERN) ; Chanavat, Christophe (CERN) ; Calviani, Marco (CERN) ; Ducimetiere, Laurent Sylvain (CERN) ; Magnin, Nicolas (CERN) ; Namora, Vasco (CERN) ; Senaj, Viliam (CERN)
Abstract—The Antiproton Decelerator (AD) at CERN uses a magnetic horn as a focusing lens to capture particles generated by shooting a proton beam into a target [...]
CERN-ACC-2018-0206. - 2018 - mult..
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2025-02-25
16:51
A multi-waveform pulsed current generator for slow kicker magnets / Grawer, Gregor (CERN) ; Boucly, Christophe (CERN) ; Carlier, Etienne (CERN) ; Cordobes Dominguez, Felipe ; Gharsa, Thierry Paul (CERN) ; Voumard, Nicolas (CERN)
Abstract— In the framework of the LHC Injector Upgrade (LIU) project, the Proton Synchrotron Booster (PSB) at CERN will be upgraded to receive 160 MeV H– beam from the new linear accelerator LINAC4. [...]
CERN-ACC-2018-0205. - 2018 - mult..

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2025-02-25
04:02
One-Loop QCD Corrections to $\bar{u}d \rightarrow t\bar{t}W$ at $\mathcal{O}(\varepsilon^2)$ / Becchetti, Matteo (Bologna U.) ; Delto, Maximilian (Munich, Tech. U. ; CERN) ; Ditsch, Sara (Munich, Tech. U. ; Garching, Max Planck Inst.) ; Kreer, Philipp Alexander (Munich, Tech. U.) ; Pozzoli, Mattia (Bologna U.) ; Tancredi, Lorenzo (Munich, Tech. U.)
We present a computation of the one-loop QCD corrections to top-quark pair production in association with a $W$ boson, including terms up to order $\varepsilon^2$ in dimensional regularization. [...]
arXiv:2502.14952. - 37.
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2025-02-25
04:01
Lepton Flavor Asymmetries: from the early Universe to BBN / Domcke, Valerie (CERN) ; Escudero, Miguel (CERN) ; Fernandez Navarro, Mario (Glasgow U.) ; Sandner, Stefan (Los Alamos)
Large primordial lepton flavor asymmetries with almost vanishing total baryon-minus-lepton number can evade the usual BBN and CMB constraints if neutrino oscillations lead to perfect flavor equilibration. [...]
CERN-TH-2025-010 ; LA-UR-25-20235 ; arXiv:2502.14960. - 16.
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2025-02-24
17:02
Quality Control setups description of GEM detector for CMS experiment / Chauhan, Bhawana (Panjab U.) ; Kumar, Sunil (Panjab U.) ; Chauhan, Sushil Singh (Panjab U.) ; Bhatnagar, Vipin (Panjab U.)
The CMS experiment at CERN is foreseen to receive a substantial upgrade during Long Shutdown-3 (LS3) to handle the large number of pileup events in the High-Luminosity LHC. The objective is to increase the integrated luminosity by a factor of 10 beyond the LHC's design value ($~10^{34} cm^{-2} s^{-1}$). [...]
CMS-CR-2025-019.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 26th DAE-BRNS High Energy Physics Symposium 2024, Varanasi, India, 19 - 23 Dec 2024

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2025-02-24
17:02
Searches for exotic decays of the 125 GeV Higgs boson in the CMS experiment / Das, Pallabi (Princeton U.) /CMS Collaboration
Since the discovery of the Higgs boson in 2012, the LHC experiments have successfully measured some of its properties with remarkable precision. However, the current integrated luminosity remains a limiting factor in probing Higgs boson self-couplings and first-generation Yukawa couplings. [...]
CMS-CR-2025-014.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 26th DAE-BRNS High Energy Physics Symposium 2024, Varanasi, India, 19 - 23 Dec 2024

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2025-02-24
14:33
Exploiting GPU Resources at VEGA for CMS Software Validation / Spiga, Daniele (INFN, Perugia) /CMS Collaboration
In recent years, the CMS experiment has expanded the usage of HPC systems for data processing and simulation activities. These resources significantly extend the conventional pledged Grid compute capacity. [...]
CMS-CR-2025-057.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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2025-02-22
04:10
Anomalous Dimension of a General Effective Gauge Theory I: Bosonic Sector / Aebischer, Jason (CERN) ; Bresciani, Luigi C. (Padua U. ; INFN, Padua) ; Selimovic, Nudzeim (INFN, Padua)
We classify the physical operators of the most general bosonic effective gauge theory up to dimension six using on-shell methods. [...]
CERN-TH-2025-032 ; arXiv:2502.14030. - 47.
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2025-02-22
04:07
Quark and gluon momentum fractions in the pion and in the kaon / Alexandrou, Constantia (Cyprus Inst. ; Cyprus U.) ; Bacchio, Simone (Cyprus Inst.) ; Constantinou, Martha (Temple U.) ; Delmar, Joseph (Temple U.) ; Finkenrath, Jacob (CERN) ; Kostrzewa, Bartosz (Bonn U., HISKP) ; Petschlies, Marcus (Bonn U., HISKP ; U. Bonn, Phys. Inst., BCTP) ; Chacon, Luis Alberto Rodriguez (Cyprus Inst. ; Ferrara U.) ; Spanoudes, Gregoris (Cyprus U.) ; Steffens, Fernanda (Bonn U., HISKP ; U. Bonn, Phys. Inst., BCTP) et al.
We present results on the momentum fraction carried by quarks and gluons in the pion and the kaon. [...]
arXiv:2502.13980. - 11.
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2025-02-21
04:54
Study of MALTA2, a Depleted Monolithic Active Pixel Sensor, with grazing angles at CERN SPS 180 GeV/c hadron beam / Li, L. (Birmingham U.) ; Allport, P. (Birmingham U.) ; Asensi Tortajada, I. (CERN) ; Behera, P. (Indian Inst. Tech., Madras) ; Berlea, D.V. (DESY, Zeuthen ; Humboldt U., Berlin) ; Bortoletto, D. (Oxford U.) ; Buttar, C. (Glasgow U.) ; Dao, V. (CERN) ; Dash, G. (Indian Inst. Tech., Madras) ; Fasselt, L. (DESY, Zeuthen ; Humboldt U., Berlin) et al.
MALTA2 is a Depleted Monolithic Active Pixel Sensor designed to meet the challenging requirements of future collider experiments, in particularly extreme radiation tolerance and high hit rate. [...]
arXiv:2502.13590. - 6.
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