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 |
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2025-07-05
06:16 |
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2025-07-05
04:02 |
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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.
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18.
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2025-07-05
04:01 |
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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.
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18 p, 18.
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2025-07-05
04:01 |
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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.
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28.
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2025-07-04
17:22 |
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2025-07-04
17:14 |
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2025-07-04
15:30 |
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2025-07-04
14:42 |
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