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2024-12-13
15:13
Search for $D^0$ meson decays to $\pi^+ \pi^- e^+ e^-$ and $K^+ K^- e^+ e^-$ final states
A search for $D^0$ meson decays to the $\pi^+\pi^-e^+e^-$ and $K^+K^-e^+e^-$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$ [...]
CERN-EP-2024-307 ; LHCB-PAPER-2024-047. - 2024
Fulltext - Previous draft version - Related data file(s)

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2024-12-13
04:50
Pion and kaon pair production in double gap events in ALICE Run 3 / Schicker, Rainer (Heidelberg U.)
The ALICE detector at the LHC has undergone a major upgrade in the long shutdown 2019-2021 to be able to take data at much-increased rates in Runs 3 and 4. [...]
arXiv:2412.08452. - 6.
Fulltext

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2024-12-12
04:54
In Search of an Invisible $Z^\prime$ / Davighi, Joe (CERN)
We consider extending the Standard Model by an anomaly-free and possibly flavour non-universal $U(1)_X$ gauge symmetry, whose breaking gives a $Z^\prime$ boson that does not affect electroweak precision observables at tree-level or at 1-loop. [...]
CERN-TH-2024-212 ; arXiv:2412.07694. - 31.
Fulltext

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2024-12-12
04:48
Run 3 performance and advances in heavy-flavor jet tagging in CMS / Sarkar, Uttiya (RWTH Aachen U.)
Identification of hadronic jets originating from heavy-flavor quarks is extremely important to several physics analyses in High Energy Physics, such as studies of the properties of the top quark and the Higgs boson, and searches for new physics. [...]
arXiv:2412.05863. - 13.
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2024-12-12
04:42
Testbeam Characterization of a SiGe BiCMOS Monolithic Silicon Pixel Detector with Internal Gain Layer / Paolozzi, L. (Geneva U.) ; Milanesio, M. (Geneva U.) ; Moretti, T. (Geneva U.) ; Cardella, R. (Geneva U.) ; Kugathasan, T. (Geneva U.) ; Picardi, A. (Geneva U.) ; Elviretti, M. (CERN) ; Rücker, H. (CERN) ; Cadoux, F. (Geneva U.) ; Cardarelli, R. (Geneva U.) et al.
A monolithic silicon pixel ASIC prototype, produced in 2024 as part of the Horizon 2020 MONOLITH ERC Advanced project, was tested with a 120 GeV/c pion beam. [...]
arXiv:2412.07606. - 18.
Fulltext

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2024-12-12
04:42
A novel liquid argon purity monitor based on $^{207}$Bi / Baibussinov, B. (INFN, Padua) ; Bettini, M. (INFN, Padua) ; Fabris, F. (INFN, Padua) ; Gan, R. ; Guglielmi, A. (INFN, Padua) ; Gurung, G. (CERN ; Texas U., Arlington) ; Marchini, S. (INFN, Padua) ; Meng, G. (INFN, Padua) ; Nicoletto, M. (INFN, Padua) ; Pietropaolo, F. (CERN) et al.
A novel liquid argon purity monitor based on a 207 Bi radioactive source, emitting monochromatic internal-conversion electrons, is presented. [...]
arXiv:2411.10796. - 11.
Fulltext

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2024-12-11
13:59
Transformer Neural Networks in the Measurement of $t\bar{t}H$ Production in the $H\to{}b\bar{b}$ Decay Channel with ATLAS / Scheulen, Chris (Geneva U.)
A measurement of Higgs boson production in association with a top quark pair in the bottom--anti-bottom Higgs boson decay channel and leptonic final states is presented. [...]
arXiv:2412.08387 ; ATL-PHYS-PROC-2024-116. - 2024 - 5.
Original Communication (restricted to ATLAS) - Full text - Fulltext

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2024-12-11
04:18
Jet Tagging with More-Interaction Particle Transformer / Wu, Yifan (Shanghai U. Sci. Tech.) ; Wang, Kun (Shanghai U. Sci. Tech.) ; Li, Congqiao (Peking U., SKLNPT) ; Qu, Huilin (CERN) ; Zhu, Jingya (Henan U.)
In this study, we introduce the More-Interaction Particle Transformer (MIParT), a novel deep learning neural network designed for jet tagging [...]
arXiv:2407.08682. - 12.
Fulltext

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2024-12-11
04:18
Probing strangeness with event topology classifiers in pp collisions at the LHC with rope hadronization mechanism in PYTHIA / Prasad, Suraj (Indian Inst. Tech., Indore) ; Sahoo, Bhagyarathi (Indian Inst. Tech., Indore) ; Tripathy, Sushanta (CERN) ; Mallick, Neelkamal (Indian Inst. Tech., Indore) ; Sahoo, Raghunath (Indian Inst. Tech., Indore)
In relativistic heavy-ion collisions, the formation of a deconfined and thermalized state of partons, known as quark-gluon plasma, leads to enhanced production of strange hadrons in contrast to proton-proton (pp) collisions, which are taken as baseline. [...]
arXiv:2409.05454. - 14.
Fulltext

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2024-12-11
04:15
Probing third-generation New Physics with $K\to \pi \nu\bar\nu$ and $B\to K^{(*)} \nu\bar\nu$ / Allwicher, Lukas (Zurich U.) ; Bordone, Marzia (CERN) ; Isidori, Gino (Zurich U.) ; Piazza, Gioacchino (Zurich U.) ; Stanzione, Alfredo (INFN, Trieste ; SISSA, Trieste)
The recent observation of the $K^+ \to \pi^+ \nu\bar\nu$ decay by NA62 is an important milestone in precision flavor physics. [...]
arXiv:2410.21444. - 10.
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