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CERN Document Server 找到 40 笔记录  1 - 10下一个最後  跳到记录: 检索需时 0.60 秒. 
1.
An integrated flux-symmetric spectrometer-magnet system for the SND@LHC experiment upgrade / SND@LHC Collaboration
The proposed upgrade of the SND@LHC experiment for the High Luminosity phase of the LHC (HL-LHC) will strongly benefit from the presence of a magnetized region, allowing for muon momentum and chargemeasurement. In this paper we describe an iron core magnet system that is partly integrated with the calorimeter and that is designed to respect the strict constraints from the available space in the experimental cavern, power consumption, and field requirements.Semi-analytical tools are introduced to explore the parameter space, in order to define the primary design options. [...]
2024 - 26 p. - Published in : JINST 19 (2024) P12002 Fulltext: PDF;
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2.
New physics decaying into metastable particles: impact on cosmic neutrinos / Akita, Kensuke (Tokyo U.) ; Baur, Gideon (KIT, Karlsruhe, IAP ; U. Bonn, Phys. Inst., BCTP) ; Ovchynnikov, Maksym (KIT, Karlsruhe, IAP ; CERN) ; Schwetz, Thomas (KIT, Karlsruhe, IAP) ; Syvolap, Vsevolod (Leiden U.)
We investigate decays of hypothetical unstable new physics particles into metastable species such as muons, pions, or kaons in the early Universe, when temperatures are in the MeV range, and study how they affect cosmic neutrinos. [...]
arXiv:2411.00892. - 6.
Fulltext
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3.
Dynamics of metastable Standard Model particles from long-lived particle decays in the MeV primordial plasma / Akita, Kensuke (Tokyo U.) ; Baur, Gideon (KIT, Karlsruhe, IAP ; U. Bonn, Phys. Inst., BCTP) ; Ovchynnikov, Maksym (KIT, Karlsruhe, IAP ; CERN) ; Schwetz, Thomas (KIT, Karlsruhe, IAP) ; Syvolap, Vsevolod (Leiden U.)
e investigate the cosmological impact of hypothetical unstable new physics particles that decay in the MeV-scale plasma of the Early Universe. [...]
arXiv:2411.00931. - 17.
Fulltext
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4.
Observation of collider neutrinos without final state muons with the SND@LHC experiment / Abbaneo, D. (CERN) ; Ahmad, S. (PINSTECH, Islamabad) ; Albanese, R. (INFN, Naples ; Naples U.) ; Alexandrov, A. (INFN, Naples ; Naples U.) ; Alicante, F. (INFN, Naples ; Naples U.) ; Androsov, K. (Ecole Polytechnique, Lausanne) ; Anokhina, A. ; Asada, T. (INFN, Naples ; Naples U.) ; Asawatangtrakuldee, C. (Chulalongkorn U.) ; Ayala Torres, M.A. (Andres Bello Natl. U.) et al. /SND@LHC
We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4\,$\sigma$. A data set of proton-proton collisions at $\sqrt{s}= 13.6$\,TeV collected by \SND in 2022 and 2023 is used, corresponding to an integrated luminosity of 68.6\,fb$^{-1}$. [...]
arXiv:2411.18787; CERN-EP-2024-316.- Geneva : CERN, 2024 - 7 p. Draft (restricted): PDF; Fulltext: Observation_of_electron_neutrino_or_neutral_current_collider_events - PDF; CERN-EP-2024-316 - PDF; 2411.18787 - PDF;
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5.
Searches for long-lived dark photons at proton accelerator experiments / Kyselov, Yehor ; Ovchynnikov, Maksym
A systematic and unified study of the ability of lifetime frontier experiments to explore the parameter space of hypothetical long-lived particles is one of the main steps in defining their parameter space. [...]
CERN-TH-2024-157 ; arXiv:2409.11096. -
Fulltext
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6.
How new physics affects primordial neutrinos decoupling: Direct Simulation Monte Carlo approach / Ovchynnikov, Maksym ; Syvolap, Vsevolod
Cosmological observations from Big Bang Nucleosynthesis and the Cosmic Microwave Background (CMB) offer crucial insights into the Early Universe, enabling us to trace its evolution back to lifetimes as short as 0.01 seconds. [...]
CERN-TH-2024-156 ; arXiv:2409.07378. -
Fulltext
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7.
Primordial neutrinos and new physics: novel approach to solving neutrino Boltzmann equation / Ovchynnikov, Maksym ; Syvolap, Vsevolod
Understanding how hypothetical new physics influences primordial neutrinos is essential in light of interpreting past and ongoing CMB observations. [...]
CERN-TH-2024-159 ; arXiv:2409.15129. -
Fulltext
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8.
Addendum to the AdvancedSND LoI / Abbaneo, D ; Albanese, R ; Alexandrov, A ; Alicante, F ; Androsov, K ; Anokhina, A ; Asada, T ; Asawatangtrakuldee, C ; Ayala Torres, M A ; Battilana, C et al.
Over the six months since the submission of the AdvSND LoI \cite{ADVSND_LOI}, the Collaboration has been intensively discussing with the CERN civil engineering team and the High Luminosity LHC (HL LHC) planning officers to fully understand the constraints related to the civil engineering modifications required for TI18 [...]
CERN-LHCC-2024-014 ; LHCC-I-040-ADD-1. - 2024.
Original Document (LHCC-I-040) - Full text
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9.
AdvSND, The Advanced Scattering and NeutrinoDetector at High Lumi LHC Letter of Intent / Abbaneo, D ; Albanese, R ; Alexandrov, A ; Alicante, F ; Androsov, K ; Anokhina, A ; Asada, T ; Asawatangtrakuldee, C ; Ayala Torres, M A ; Battilana, C et al.
The SND@LHC experiment has been taking data at the LHC since the beginning of Run3 [...]
CERN-LHCC-2024-007 ; LHCC-I-040. - 2024.
Fulltext
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10.
Improving the potential of BDF@SPS to search for new physics with liquid argon time projection chambers / Ferrillo, Martina (Zurich U.) ; Ovchynnikov, Maksym (KIT, Karlsruhe, IAP ; Leiden U.) ; Resnati, Filippo (CERN) ; De Roeck, Albert (CERN)
Beam dump experiments proposed at the SPS are perfectly suited to explore the parameter space of models with long-lived particles, thanks to the combination of a large intensity with a high proton beam energy. In this paper, we study how the exploration power may be augmented further by installing a detector based on liquid argon time projection chamber technology. [...]
arXiv:2312.14868.- 2024-02-26 - Published in : JHEP 2402 (2024) 196 Fulltext: 2312.14868 - PDF; Publication - PDF;
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CERN Document Server : 找到 40 笔记录   1 - 10下一个最後  跳到记录:
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18 Ovchynnikov, M.
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