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CERN Document Server 2,050 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 1.88 δευτερόλεπτα. 
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Measurement of the muon flux from 400 GeV/c protons interacting in a thick molybdenum/tungsten target / SHiP Collaboration
The SHiP experiment is proposed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/$c$ proton beam dump at the CERN SPS. About $10^{11}$ muons per spill will be produced in the dump. [...]
arXiv:2001.04784; CERN-EP-2020-006.- Geneva : CERN, 2020-03-29 - 11 p. - Published in : Eur. Phys. J. C 80 (2020) 284 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: CERN-EP-2020-006 - PDF; 2001.04784 - PDF; Fulltext from publisher: PDF;
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The SHiP experiment at the proposed CERN SPS Beam Dump Facility / SHiP Collaboration
The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search for light, feebly interacting particles. The SHiP experiment incorporates two complementary detectors. [...]
arXiv:2112.01487.- 2022-05-26 - 23 p. - Published in : Eur. Phys. J. C 82 (2022) 486 Fulltext: document - PDF; 2112.01487 - PDF;
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Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles / SHiP Collaboration
Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass of the dark photon m$_{\gamma^{\mathrm{D}}}$ and its mixing parameter with the photon, $\varepsilon$. [...]
arXiv:2011.05115.- 2021-05-25 - 17 p. - Published in : Eur. Phys. J. C 81 (2021) 451 Article from SCOAP3: PDF; Fulltext: PDF;
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Sensitivity of the SHiP experiment to Heavy Neutral Leptons / SHiP Collaboration
Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe and provide a dark matter candidate. [...]
arXiv:1811.00930.- 2019-04-09 - 22 p. - Published in : JHEP 04 (2019) 077 Article from SCOAP3: PDF; Fulltext: PDF;
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Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment / SHiP Collaboration
In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion films followed by a silicon pixel tracker was installed in front of the Goliath magnet at the H4 proton beamline. [...]
arXiv:2112.11754.- 2022-03-16 - 14 p. - Published in : JINST Fulltext: 2112.11754 - PDF; document - PDF;
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Fast simulation of muons produced at the SHiP experiment using Generative Adversarial Networks / SHiP Collaboration
This paper presents a fast approach to simulating muons produced in interactions of the SPS proton beams with the target of the SHiP experiment. The SHiP experiment will be able to search for new long-lived particles produced in a 400~GeV$/c$ SPS proton beam dump and which travel distances between fifty metres and tens of kilometers. [...]
arXiv:1909.04451.- 2019-11-27 - 20 p. - Published in : JINST 14 (2019) P11028 Fulltext: PDF; Published fulltext: PDF;
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The experimental facility for the Search for Hidden Particles at the CERN SPS / SHiP Collaboration
The Search for Hidden Particles (SHiP) Collaboration has shown that the CERN SPS accelerator with its 400 $\mathrm{\small GeV/c}$ proton beam offers a unique opportunity to explore the Hidden Sector. The proposed experiment is an intensity frontier experiment which is capable of searching for hidden particles through both visible decays and through scattering signatures from recoil of electrons or nuclei. [...]
arXiv:1810.06880.- 2019-03-25 - 21 p. - Published in : JINST 14 (2019) P03025 Fulltext: 1810.06880 - PDF; fulltext1698888 - PDF; Fulltext from Publisher: PDF;
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Observation of the $B^+ \rightarrow J/\psi \eta^{\prime} K^+$ decay / LHCb Collaboration
The $B^+ \rightarrow J/\psi \eta^{\prime} K^+$ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13TeV, corresponding to a total integrated luminosity of 9fb$^{-1}$. The branching fraction of this decay is measured relative to the known branching fraction of the $B^+ \rightarrow \psi(2S) K^+$ decays and found to be $$ \frac{\mathcal{B}( B^+ \rightarrow J/\psi \eta^{\prime}K^+)} {\mathcal{B}( B^+ \rightarrow \psi(2S)K^+) } = \left(4.91\pm 0.47\pm0.29\pm0.07\right)\times10^{-2}, $$ where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. [...]
arXiv:2303.09443; LHCb-PAPER-2022-054; CERN-EP-2023-022.- Geneva : CERN, 2023-08-25 - 19 p. Fulltext: Publication - PDF; 2303.09443 - PDF; Erratum - PDF; Related data file(s): ZIP;
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Searches for 25 rare and forbidden decays of $D^{+}$ and $ {D}_s^{+} $ mesons / LHCb Collaboration
A search is performed for rare and forbidden charm decays of the form $D_{(s)}^+ \to h^\pm \ell^+ \ell^{(\prime)\mp}$, where $h^\pm$ is a pion or kaon and $\ell^{(')\pm}$ is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of $1.6\text{fb}^{-1}$, collected by the LHCb experiment in 2016. [...]
arXiv:2011.00217; LHCb-PAPER-2020-007; CERN-EP-2020-140.- 2021-06-07 - 24 p. - Published in : JHEP 2106 (2021) 044 Article from SCOAP3: PDF; Fulltext: PDF;
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Search for the radiative $\Xi_b^-\to\Xi^-\gamma$ decay / LHCb Collaboration
The first search for the rare radiative decay $\Xi_{b}^{-} \to \Xi^{-} \gamma$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. The $\Xi_{b}^{-} \to \Xi^{-} J/\psi$ channel is used as normalization. [...]
arXiv:2108.07678; LHCb-PAPER-2021-017; CERN-EP-2021-128; LHCB-PAPER-2021-017.- 2022-01-14 - 20 p. - Published in : JHEP 2201 (2022) 069 Fulltext: 2108.07678 - PDF; document - PDF; Related data file(s): ZIP;
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