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2025-08-25
12:36
Machine-learning based particle-flow algorithm in CMS / Mokhtar, Farouk (UC, San Diego) /CMS Collaboration
The particle-flow (PF) algorithm provides a global event description by reconstructing final-state particles and is central to event reconstruction in CMS. Recently, end-to-end machine learning (ML) approaches have been proposed to directly optimize physical quantities of interest and to leverage heterogeneous computing architectures. [...]
CMS-CR-2025-155.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, Fr, 7 - 11 Jul 2025

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2025-08-25
09:55
First observation of the charmless baryonic decay $B^+\to \bar{\Lambda}p\bar{p}p$
A search for the charmless baryonic decay $B^+\to \bar{\Lambda} p\bar{p}p$ is performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 5.4 $\rm{fb}^{-1}$. [...]
CERN-EP-2025-174 ; arXiv:2508.16259 ; LHCB-PAPER-2025-032. -
Fulltext - Related data file(s)

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2025-08-23
04:15
JEDI-linear: Fast and Efficient Graph Neural Networks for Jet Tagging on FPGAs / Que, Zhiqiang (Imperial Coll., London) ; Sun, Chang (Caltech) ; Paramesvaran, Sudarshan (U. Bristol (main)) ; Clement, Emyr (U. Bristol (main)) ; Karakoulaki, Katerina (U. Bristol (main)) ; Brown, Christopher (CERN) ; Laatu, Lauri (Imperial Coll., London) ; Cox, Arianna (Imperial Coll., London) ; Tapper, Alexander (Imperial Coll., London) ; Luk, Wayne (Imperial Coll., London) et al.
Graph Neural Networks (GNNs), particularly Interaction Networks (INs), have shown exceptional performance for jet tagging at the CERN High-Luminosity Large Hadron Collider (HL-LHC). [...]
arXiv:2508.15468. - 10.
Fulltext

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2025-08-23
04:15
Spin versus Magic: Lessons from Gluon and Graviton Scattering / Gargalionis, John (Adelaide U., Sch. Chem. Phys. ; ARC, CoEDMPP, Australia) ; Moynihan, Nathan (Queen Mary, U. of London) ; Trifinopoulos, Sokratis (CERN ; Zurich U.) ; Wallace, Ewan N.V. (Adelaide U., Sch. Chem. Phys. ; ARC, CoEDMPP, Australia) ; White, Chris D. (Queen Mary, U. of London) ; White, Martin J. (Adelaide U., Sch. Chem. Phys. ; ARC, CoEDMPP, Australia)
The quantum property of non-stabiliserness, also known as magic, plays a key role in designing quantum computing systems. [...]
CERN-TH-2025-166 ; ADP-25-30/T1292 ; arXiv:2508.14967. - 28.
Fulltext

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2025-08-22
07:30
Lorentz-Equivariance without Limitations / Favaro, Luigi (Louvain U., CP3) ; Gerhartz, Gerrit (U. Heidelberg, ITP) ; Hamprecht, Fred A. (Heidelberg U.) ; Lippmann, Peter (Heidelberg U.) ; Pitz, Sebastian (U. Heidelberg, ITP) ; Plehn, Tilman (U. Heidelberg, ITP ; Heidelberg U.) ; Qu, Huilin (CERN) ; Spinner, Jonas (U. Heidelberg, ITP)
Lorentz Local Canonicalization (LLoCa) ensures exact Lorentz-equivariance for arbitrary neural networks with minimal computational overhead. [...]
arXiv:2508.14898. - 33.
Fulltext

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2025-08-22
05:53
Application of Laplace filters to the analysis of lattice time correlators / Portelli, Antonin (U. Edinburgh) ; Tsang, Justus Tobias (CERN ; Liverpool U., Dept. Math.)
The analysis of lattice simulation correlation function data is notoriously hindered by the ill-conditioning of the Euclidean time covariance matrix. [...]
arXiv:2508.11541. - 22.
Fulltext

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2025-08-21
09:55
Search for the production of a Higgs boson in association with a single top quark in $pp$ collisions at $\sqrt{s}~=~13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for the production of a Higgs boson in association with a single top quark, $tH$, is presented. [...]
arXiv:2508.14695 ; CERN-EP-2025-178. - 2025 - 67.
Fulltext - Previous draft version - Fulltext

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2025-08-21
06:09
Data-driven analyses and model-independent fits for present $b\to s \ell \ell$ results / Hurth, T. (U. Mainz, PRISMA) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Monceaux, Y. (IP2I, Lyon) ; Neshatpour, S. (IP2I, Lyon)
We present a critical assessment of the present $B$ anomalies in the exclusive $b \to s \ell\ell$ mode based on the QCD factorisation approach (QCDf). [...]
arXiv:2508.09986 ; CERN-TH-2025-164 ; MITP/25-055. - 29.
Fulltext

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2025-08-21
06:01
Deformations of Starobinsky Inflation in No-Scale SU(5) and SO(10) GUTs / Ellis, John (King's Coll. London ; CERN) ; Garcia, Marcos A.G. (Mexico U.) ; Nagata, Natsumi (Tokyo U.) ; Nanopoulos, Dimitri V. (CERN ; Unlisted, GR ; TAMU, College Station) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.)
The original Starobinsky $R + R^2$ model of inflation is consistent with Planck and other measurements of the CMB, but recent results from the ACT and SPT Collaborations hint that the tilt of scalar perturbations may be in tension with the prediction of the Starobinsky model. [...]
FTPI--MINN--25/07 ; UMN--TH--4501/25 ; FTPI-MINN-25/07 ; UMN-TH-4501/25 ; KCL-PH-TH/2025-36 ; CERN-TH-2025-160 ; arXiv:2508.13279. - 36.
Fulltext

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2025-08-21
05:57
Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based (anti)neutrino cross-section model in the GENIE neutrino event generator / Russo, Lavinia (Paris U., VI-VII) ; Martini, Marco (Paris U., VI-VII ; IPSA, Paris) ; Dolan, Stephen (CERN) ; Munteanu, Laura (CERN) ; Popov, Boris (Paris U., VI-VII) ; Giganti, Claudio (Paris U., VI-VII)
We discuss the first implementation of the Martini-Ericson-Chanfray-Marteau RPA-based (anti)neutrino cross-section model for quasielastic (1p1h) and multinucleon (2p2h and 3p3h) excitations in the widely used GENIE neutrino event generator. [...]
arXiv:2508.13939. - 11.
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