CERN Accelerating science

CERN Preprints

Letzte Einträge:
2025-07-08
11:49
VHE gamma-ray intranight variability from BL Lacertae during the extreme flaring state of 2022 /RE23/CTA-LST Collaboration
Context: BL Lacertae (BL Lac), the archetypal blazar of its subclass and one of the most studied blazars in the last decades, has gone through a series of major multi-wavelength outbursts since 2020, resulting in its highest gamma-ray flare up to date between September and November 2022 together with those from August 2021 and October 2024. Aims: We characterise the gamma-ray and multi-wavelength emission and spectral energy distribution (SED) of BL Lac as well as their evolution during the major and extended gamma-ray and multi-wavelength flare occurring between September and November 2022. [...]
CERN-RE23-2025-006.- Geneva : CERN, 2025 BLLac_2022_flare_7July2025: PDF;

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2025-07-08
10:02
Advances in transverse beam halo characterization and implications for HL-LHC / Rakic, M (CERN ; Ecole Polytechnique, Lausanne) ; Hermes, P (CERN) ; Redaelli, S (CERN) ; Seidel, M (PSI, Villigen)
Measurements of the transverse beam halo in the LHC showed that it contains a non-negligible portion of the total stored beam energy, with implications for both collimation system performance and overall machine protection. [...]
6.
JACoW - Full text

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2025-07-05
06:16
Higgs and Flavour: BSM Overview / Davighi, Joe (CERN)
We discuss scenarios for BSM physics near the TeV, motivated by the hierarchy problem and the flavour puzzle, and review their experimental tests at present and future colliders. [...]
arXiv:2501.16064.
- 2025 - 8.
Fulltext

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2025-07-05
04:02
Particle production and identification for the T10 secondary beamline of the CERN East Area / van Dijk, Maarten (CERN) ; Hayat, Ahsan (CERN) ; Banerjee, Dipanwita (CERN) ; Bernhard, Johannes (CERN) ; Gokturk, Berare (CERN ; Bogazici U.) ; Nevay, Laurie (CERN) ; Petersen, Jorgen (CERN) ; Schwinzerl, Martin (CERN)
The particle composition of the T10 beam line in the renovated East Hall at CERN has been measured using several experimental techniques and detectors: pressure scans on a threshold Cherenkov counter, a lead-glass calorimeter, time-of-flight, and finally using two separate threshold Cherenkov counters. [...]
arXiv:2507.02567.
- 18.
Fulltext

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2025-07-05
04:01
Observation of orbitally excited $B_{c}^{+}$ states / LHCb Collaboration
The observation of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using proton-proton collision data collected by the LHCb detector at center-of-mass energies of $7$, $8$ and $13~\text{TeV}$, corresponding to a total integrated luminosity of $9~\text{fb}^{-1}$. [...]
arXiv:2507.02149 ; LHCb-PAPER-2025-014 ; CERN-EP-2025-123.
- 18 p, 18.
Fulltext

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2025-07-05
04:01
Study of $B_{c}(1P)^{+}$ states in the $B_{c}^{+} \gamma$ mass spectrum / LHCb Collaboration
The study of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using a data sample of proton-proton collisions collected by the LHCb detector at center-of-mass energies of $7$, $8$ and $13~\text{TeV}$, corresponding to an integrated luminosity of $9~\text{fb}^{-1}$. [...]
arXiv:2507.02142 ; CERN-EP-2025-122 ; LHCb-PAPER-2025-015.
- 28.
Fulltext

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2025-07-04
17:22
Search for resonant leptoquark production via lepton–jet signatures in $pp$ collisions at $\sqrt{s} = 13$ TeV and $\sqrt{s} = 13.6$ TeV with the ATLAS detector
This paper presents a search for physics beyond the Standard Model targeting a heavy resonance visible in the invariant mass of the lepton–jet system. [...]
CERN-EP-2025-142.
- 2025
Fulltext - Previous draft version

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2025-07-04
17:14
Evidence for the dimuon decay of the Higgs boson in $p\!p$ collisions with the ATLAS detector
A search for the dimuon decay of the Higgs boson is presented based on $pp$ collision data recorded by ATLAS during Run 3 of the Large Hadron Collider, corresponding to an integrated luminosity of $165~\mathrm{fb}^{-1}$ at $\sqrt{s} = 13.6~\,\text{TeV}$ [...]
CERN-EP-2025-149.
- 2025
Fulltext - Previous draft version

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2025-07-04
15:30
Measurements and interpretations of $W^{\pm}Z$ production cross-sections in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector
Measurements of integrated and differential cross-sections for $W^{\pm}Z$ production in proton-proton collisions are presented. [...]
CERN-EP-2025-145.
- 2025
Fulltext - Previous draft version

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2025-07-04
14:42
Study of Higgs boson pair production in the $HH \rightarrow b \overline{b} \gamma \gamma$ final state with 308 fb$^{-1}$ of data collected at $\sqrt{s} = 13$ TeV and 13.6 TeV by the ATLAS experiment
A search for Higgs boson pair production in the $b \bar{b} \gamma \gamma$ final state is performed. [...]
CERN-EP-2025-140.
- 2025
Fulltext - Previous draft version

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