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2025-06-19
04:14
Results from the T2K experiment on neutrino mixing including a new far detector $\mu$-like sample / T2K Collaboration
T2K has made improved measurements of three-flavor neutrino mixing with 19.7(16.3)$\times 10^{20}$ protons on target in (anti-)neutrino-enhanced beam modes. [...]
arXiv:2506.05889. - 9.
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2025-06-19
04:04
A Determination of $α_s(m_Z)$ at aN$^3$LO$_{\bf QCD}\otimes {\bf NLO}_{\bf QED}$ Accuracy from a Global PDF Analysis / Ball, Richard D. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Barontini, Andrea (INFN, Milan ; Milan U.) ; Cruz-Martinez, Juan (CERN) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Hekhorn, Felix (Jyvaskyla U. ; Helsinki U.) ; Nocera, Emanuele R. (Turin U. ; INFN, Turin) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (Heriot-Watt U. (main))
We present a determination of the strong coupling $α_s(m_Z)$ from a global dataset including both fixed-target and collider data from deep-inelastic scattering and a variety of hadronic processes, with a simultaneous determination of parton distribution functions (PDFs) based on the NNPDF4.0 methodology. [...]
arXiv:2506.13871 ; TIF-UNIMI-2025-10 ; Edinburgh 2024/12 ; CERN-TH-2025-106. - 21.
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2025-06-18
08:56
Measurements of differential cross-sections of $WbWb$ production in the dilepton channel in $pp$ collisions at $\sqrt{s}$ = 13 TeV using the ATLAS detector / ATLAS Collaboration
At the Large Hadron Collider, the $WbWb$ final state is expected to be dominated by $t\bar{t}$ production with a contribution from single-top processes. [...]
arXiv:2506.14700 ; CERN-EP-2025-094. - 2025 - 64 p, 64.
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2025-06-18
04:50
Flavoured jet algorithms: a comparative study / Behring, Arnd (Garching, Max Planck Inst.) ; Caletti, Simone (Zurich, ETH) ; Giuli, Francesco (Rome U., Tor Vergata ; INFN, Rome) ; Grabarczyk, Radoslaw (Oxford U. ; Oxford U., Theor. Phys.) ; Hinzmann, Andreas (DESY) ; Huss, Alexander (CERN) ; Huston, Joey (Michigan State U.) ; Lesser, Ezra D. (CERN) ; Marzani, Simone (Genoa U. ; INFN, Genoa) ; Napoletano, Davide (Milan Bicocca U. ; INFN, Milan Bicocca) et al.
The accurate identification of heavy-flavour jets, those which originate from bottom or charm quarks, is crucial for precision studies of the Standard Model and searches for new physics. [...]
arXiv:2506.13449 ; CERN-TH-2025-113 ; IFJPAN-IV-2025-13 ; MCNET-25-14 ; MPP-2025-118 ; PUBDB-2025-01862. - 2025-06-16 - 81.
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2025-06-18
04:35
Holistic approach and Advanced Color Singlet Identification for physics measurements at high energy frontier / Zhu, Yongfeng (Beijing, Inst. High Energy Phys. ; Peking U., SKLNPT) ; Liang, Hao (Ecole Polytechnique ; LTCI, Paris) ; Wang, Yuexin (Beijing, Inst. High Energy Phys.) ; Che, Yuzhi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Wang, Hengyu (Beijing, GUCAS) ; Zhou, Chen (Beijing, Inst. High Energy Phys. ; Peking U., SKLNPT) ; Qu, Huilin (CERN) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
To enhance the discovery power of high-energy colliders, we propose a holistic approach and Advanced Color Singlet Identification (ACSI), both of which utilize inclusive reconstructed information as input. [...]
arXiv:2506.11783. - 2025-06-13 - 9.
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2025-06-18
04:33
Under-coverage in high-statistics counting experiments with finite MC samples / Alexe, Cristina-Andreea (Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Bendavid, Joshua (CERN) ; Bianchini, Lorenzo (Pisa U. ; INFN, Pisa) ; Bruschini, Davide (Pisa, Scuola Normale Superiore ; INFN, Pisa)
We consider the problem of setting confidence intervals on a parameter of interest from the maximum-likelihood fit of a physics model to a binned data set with a large number of bins, large event-counts per bin, and in the presence of systematic uncertainties modeled as nuisance parameters. [...]
arXiv:2401.10542. - 47.
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2025-06-18
04:29
Probing the sensitivity of CTAO-N LSTs observations at large zenith angles to the multi-TeV gamma-ray emission from the inner 10 parsecs of the Galactic Center / Abe, Shotaro (Tokyo U., ICRR) ; Inada, Tomohiro (Tokyo U., ICRR ; Kyushu U., Fukuoka (main) ; CERN) ; Moulin, Emmanuel (IRFU, Saclay)
Observations of the Galactic Center using Imaging Atmospheric Cherenkov Telescopes (IACTs), such as H.E.S.S., MAGIC, and VERITAS, have revealed a very-high-energy (VHE, $\gtrsim 100$ GeV) gamma-ray source, HESS J1745$-$290, aligned with the dynamical center of the Milky Way. [...]
arXiv:2506.04074. - 16.
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2025-06-16
22:16
Search for nonresonant new physics signals in high-mass dilepton events produced in association with b-tagged jets in proton-proton collisions at $ \sqrt{s} = $ 13 TeV / CMS Collaboration
A search for nonresonant new physics phenomena in high-mass dilepton events produced in association with b-tagged jets is performed using proton-proton collision data collected in 2016-2018 by the CMS experiment at the CERN LHC, at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138 fb$ ^{-1} $. [...]
arXiv:2506.13565 ; CMS-EXO-23-010 ; CERN-EP-2025-044 ; CMS-EXO-23-010-003. - 2025-06-16 - 47.
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2025-06-16
15:07
Measurement of the $\Omega_c^0$ and $\Xi_c^0$ baryon lifetimes using hadronic $b$-baryon decays / LHCb Collaboration
The lifetimes of the $\Omega_c^0$ and $\Xi_c^0$ baryons are measured using a $pp$ collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of $9~\rm{fb^{-1}}$. [...]
arXiv:2506.13334 ; LHCb-PAPER-2025-013,CERN-EP-2025-117 ; LHCb-PAPER-2025-013 ; CERN-EP-2025-117 ; LHCB-PAPER-2025-013. - 2025-06-16 - 25.
Fulltext - Related data file(s) - Full text - Full text - Fulltext

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2025-06-14
06:01
Discovering the Higgsino at CTAO-North within the Decade / Abe, Shotaro (Tokyo U., ICRR) ; Inada, Tomohiro (Tokyo U., ICRR ; Kyushu U., Fukuoka (main) ; CERN) ; Moulin, Emmanuel (IRFU, Saclay) ; Rodd, Nicholas L (UC, Berkeley ; LBL, Berkeley) ; Safdi, Benjamin R (UC, Berkeley ; LBL, Berkeley) ; Xu, Weishuang Linda (UC, Berkeley ; LBL, Berkeley ; KIPAC, Menlo Park ; SLAC)
We demonstrate that higgsino dark matter (DM) could be discovered within the next few years using the Cherenkov Telescope Array Observatory's soon-to-be-operational northern site (CTAO-North). [...]
arXiv:2506.08084. - 2025 - 10.
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