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2024-06-14
16:30
Test results of the optical calibration system for the Large Sized Telescope camera /RE23/CTA-LST Collaboration
In 2018 the Large Sized Telescope (LST-1) prototype, designed to be the lowest energy detector for the Cherenkov Telescope Array Observatory, was inaugurated at the Observatorio de Roque de Los Muchachos in La Palma, Canary Island and today three more are under construction, LST2–4 . The LST camera, with 1855 photomultipliers (PMTs), requires precise and regular calibration. [...]
CERN-RE23-2024-003.- Geneva : CERN, 2024

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2024-06-14
06:02
Heavy-to-light form factors to three loops / Fael, Matteo (CERN) ; Huber, Tobias (Siegen U.) ; Lange, Fabian (Zurich U. ; PSI, Villigen) ; Müller, Jakob (Siegen U.) ; Schönwald, Kay (Zurich U.) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP)
We compute three-loop corrections of $\mathcal{O}(\alpha_{s}^3)$ to form factors with one massive and one massless quark coupling to an external vector, axialvector, scalar, pseudoscalar, or tensor current. [...]
CERN-TH-2024-064 ; P3H-24-036 ; PSI-PR-24-13 ; SI-HEP-2024-14, TTP24-017 ; ZU-TH28/24 ; arXiv:2406.08182. - 51 p.
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2024-06-13
06:49
Scaling violation in power corrections to energy correlators from the light-ray OPE / Chen, Hao (Zhejiang U., Inst. Mod. Phys.) ; Monni, Pier Francesco (King's Coll. London ; CERN) ; Xu, Zhen (Zhejiang U., Inst. Mod. Phys.) ; Zhu, Hua Xing (Peking U. ; Maryland U. ; Peking U., CHEP)
In recent years, energy correlators have emerged as a powerful tool to explore the field theoretic structure of strong interactions at particle colliders. [...]
CERN-TH-2024-084 ; arXiv:2406.06668. - 5 p.
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2024-06-13
06:39
$(J/\psi, J/\psi)$, and $(\eta_c, \eta_c)$ production through two intermediate photons in electron-positron annihilation at B-factories / Bhatnagar, Shashank (Delhi U.) ; Negash, Hluf (Samara U.)
We study the processes, $e^- e^+ \rightarrow \gamma^* \gamma^* \rightarrow J/\psi +J/\psi$, and $e^- e^+ \rightarrow \gamma^* \gamma^* \rightarrow \eta_c+ \eta_c$ at $\sqrt{s}=10.6$ GeV in the framework of $4\times 4$ Bethe-Salpeter equation. [...]
CERN-TH-2024-081 ; arXiv:2406.07508. - 14 p.
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2024-06-13
06:24
Study of $\pi$, K, and p production in high multiplicity pp collisions at $\sqrt{s}$ = 13 TeV with ALICE at the LHC / Kumar, Navneet (Panjab U., Chandigarh)
High multiplicity proton-proton and proton-lead collisions at LHC energies exhibit similar signatures to those observed in Pb-Pb collisions (i.e. [...]
arXiv:2406.07018. - 2 p.
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2024-06-13
05:53
Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection / Schueler, J. (New Mexico U.) ; Araújo, H.M. (Imperial Coll., London) ; Balashov, S.N. (Rutherford) ; Borg, J.E. (Lulea U.) ; Brew, C. (Rutherford) ; Brunbauer, F.M. (CERN) ; Cazzaniga, C. (Rutherford) ; Cottle, A. (Oxford U.) ; Frost, C.D. (Rutherford) ; Garcia, F. (Helsinki U.) et al.
Deep learning-based object detection algorithms enable the simultaneous classification and localization of any number of objects in image data. [...]
arXiv:2406.07538. - 24 p.
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2024-06-12
04:54
Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap / Kurkela, Aleksi (Stavanger U.) ; Rajagopal, Krishna (MIT, Cambridge, CTP ; CERN) ; Steinhorst, Rachel (MIT, Cambridge, CTP)
We demonstrate that astrophysical constraints on the dense-matter equation of state place an upper bound on the color-superconducting gap in dense matter above the transition from nuclear matter to quark matter. [...]
arXiv:2401.16253 ; MIT-CTP/5671. - 8 p.
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2024-06-12
04:51
Normalizing Flows for High-Dimensional Detector Simulations / Ernst, Florian (U. Heidelberg, ITP ; CERN) ; Favaro, Luigi (U. Heidelberg, ITP) ; Krause, Claudius (U. Heidelberg, ITP ; Vienna, OAW) ; Plehn, Tilman (U. Heidelberg, ITP) ; Shih, David (Rutgers U., Piscataway)
Whenever invertible generative networks are needed for LHC physics, normalizing flows show excellent performance. [...]
arXiv:2312.09290. - 24 p.
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2024-06-12
04:51
Laboratory realization of relativistic pair-plasma beams / Arrowsmith, C.D. (Oxford U.) ; Simon, P. (CERN ; Darmstadt, GSI) ; Bilbao, P. (Lisbon, IST) ; Bott, A.F.A. (Oxford U.) ; Burger, S. (CERN) ; Chen, H. (LLNL, Livermore) ; Cruz, F.D. (Lisbon, IST) ; Davenne, T. (Rutherford) ; Efthymiopoulos, I. (CERN) ; Froula, D.H. (Rochester U.) et al.
Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with such pair plasmas. [...]
arXiv:2312.05244. - 14 p.
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2024-06-12
04:51
Gravitational wave background from primordial black holes in globular clusters / Vanzan, Eleonora (Padua U. ; INFN, Padua) ; Libanore, Sarah (Padua U. ; Ben Gurion U. of Negev) ; Valbusa Dall'Armi, Lorenzo (Padua U. ; INFN, Padua) ; Bellomo, Nicola (Padua U. ; INFN, Padua ; U. Texas, Austin (main) ; Texas U.) ; Raccanelli, Alvise (Padua U. ; INFN, Padua ; Padua Observ. ; CERN)
Primordial black holes still represent a viable candidate for a significant fraction, if not for the totality, of dark matter. [...]
arXiv:2405.13871. - 36 p.
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