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The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.
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Preprints

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2026-05-01
05:17
Measurement of muon (anti-)neutrino charged-current quasielastic-like cross section using off-axis NuMI beam at ICARUS / ICARUS Collaboration
This paper presents the first neutrino cross-section measurement from the ICARUS detector at Fermilab, using NuMI (Neutrinos at the Main Injector) beam data collected from two beam operation periods corresponding to $2.5\times10^{20}$ protons-on-target in neutrino beam mode. [...]
arXiv:2604.24925 ; FERMILAB-PUB-26-0277-PPD. - 24.
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2026-05-01
04:36
Study on the systematic effects on $b \to c$ inclusive semileptonic decays / Barone, Alessandro (U. Mainz, PRISMA) ; Elgaziari, Ahmed (Southampton U. ; U. Southampton (main)) ; Hashimoto, Shoji (KEK, Tsukuba ; Sokendai, Tsukuba) ; Hu, Zhi (KEK, Tsukuba) ; Jüttner, Andreas (Southampton U. ; U. Southampton (main) ; CERN) ; Kaneko, Takashi (KEK, Tsukuba ; Sokendai, Tsukuba) ; Kellermann, Ryan (KEK, Tsukuba)
We discuss the calculation of the inclusive semileptonic decay for the process $B_s \to X_c \, l ν_l$ using lattice QCD. [...]
arXiv:2604.26381. - 10.
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2026-04-30
11:47
First evidence of the decay $B^+ \to \pi^+ e^+ e^-$ / LHCb Collaboration
The first evidence for the decay $B^+\to\pi^+ e^+ e^-$ is reported using proton-proton collision data recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2604.26784 ; CERN-EP-2026-055 ; LHCb-PAPER-2025-050 ; LHCB-PAPER-2025-050. - 2026 - 20 p, 20.
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2026-04-30
08:43
RF Basics I & II / Gerigk, Frank (CERN)
This lecture starts with a brief historical introduction and an explanation how to get from Maxwell's Equations to a simple cavity. [...]
arXiv:2602.23215. - 2026 - 53.
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2026-04-30
06:21
Advances in photocathode development for PICOSEC Micromegas precise-timing detectors / Lisowska, M. (CERN ; Baskent U.) ; Guerra, F. (CERN ; INFN, Turin) ; Gurpinar, A. (CERN ; Middle East Tech. U., Ankara) ; Zavazieva, D. (Technion) ; Aleksan, R. (IRFU, Saclay) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (Munich U.) ; Breskin, A. (Weizmann Inst.) ; Brunbauer, F.M. (CERN) ; Brunold, M. (Pavia U. ; INFN, Pavia) et al.
The PICOSEC Micromegas detector is a precise-timing gaseous detector that combines a Cherenkov radiator, a semi-transparent photocathode and a Micromegas amplification stage, targeting time resolutions of tens of picoseconds for minimum ionising particles (MIPs). [...]
arXiv:2604.17953. -
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2026-04-30
06:21
Constraining the trend of the $N = 50$ shell gap towards $^{100}$Sn with the masses of $^{96-98}$Cd / Lange, D. (Heidelberg, Max Planck Inst.) ; Atanasov, D. (SCK-CEN, Mol) ; Au, M. (CERN ; Mainz U.) ; Belley, A. (MIT) ; Benhatchi, M. (IJCLab, Orsay) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cakirli, R.B. (Heidelberg, Max Planck Inst.) ; Giesel, P.F. (Greifswald U.) ; Herlert, A. (FAIR, Darmstadt ; Darmstadt, GSI) ; Holt, J.D. (TRIUMF ; McGill U.) et al.
We present the first determination of the $N = 50$ empirical shell gap at $Z = 48$ by precise mass measurements of the neutron-deficient cadmium isotopes $^{96-98}$Cd with the ISOLTRAP mass spectrometer at ISOLDE-CERN, including the first precise determination of the excitation energy of the $25/2^+$ isomer in $^{97}$Cd. [...]
arXiv:2604.18287. - 8.
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2026-04-30
05:11
Flavour changing charged current decays at LHCb / Mitreska, Biljana (Manchester U.)
Semileptonic $b$-hadron decays proceed via charged-current interactions and provide powerful probes for testing the Standard Model and searching for New Physics effects. [...]
arXiv:2604.16960. - 6.
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2026-04-29
16:01
Measurement of the $ \mathrm{Z} \to \mu^{+}\mu^{-} $ angular coefficients in pp collisions at $ \sqrt{s} = $ 13 TeV as functions of transverse momentum and rapidity / CMS Collaboration
A measurement of the eight angular polarization coefficients, $ A_0 $ to $ A_7 $, in the cross section for the Drell--Yan production of two muons is presented. [...]
arXiv:2604.25678 ; CMS-SMP-23-007 ; CERN-EP-2026-099 ; CMS-SMP-23-007-003. - 2026 - 41.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2026-04-29
15:25
Search for electroweakinos in compressed-spectrum scenarios with low-momentum isolated tracks in proton-proton collisions at $ \sqrt{s} = $ 13 TeV / CMS Collaboration
A search for supersymmetric electroweakinos is performed using events with a low-momentum (soft) isolated track and large missing transverse momentum, targeting nearly mass-degenerate higgsino-like charginos and neutralinos. [...]
arXiv:2604.25604 ; CMS-SUS-24-012 ; CERN-EP-2026-103 ; CMS-SUS-24-012-003. - 2026 - 33.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2026-04-29
14:25
Simultaneous measurements of $ N $-subjettiness observables in jets from gluons and light-flavour quarks, and in decays of boosted W bosons and top quarks / CMS Collaboration
A simultaneous measurement of 25 substructure observables is presented using large-radius jets with high transverse momentum from proton-proton collisions at $ \sqrt{s}= $ 13 TeV. [...]
arXiv:2604.25538 ; CMS-SMP-22-003 ; CERN-EP-2025-294 ; CMS-SMP-22-003-003. - 2026 - 115.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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