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CERN Document Server 2,038 records found  1 - 10próximoend  jump to record: Search took 0.61 seconds. 
1.
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Search for a light muon-philic Z′ with the NA64-e experiment at CERN / Andreev, Yu. M. ; Banerjee, D. ; Banto Oberhauser, B. ; Bernhard, J. ; Bisio, P. ; Bondì, M. ; Burtsev, V. E. ; Celentano, A. ; Charitonidis, N. ; Chumakov, A. G. et al.
The extension of Standard Model made by inclusion of additional U (1) gauge L_μ − L_τ symmetry can explain the difference between the measured and the predicted value of the muon magnetic moment and solve the tension in B meson decays. This model predicts the existence of a new, light Z′ vector boson, predominantly coupled to second and third generation leptons, whose interaction with electrons is due to a loop mechanism involving muons and taus. [...]
CERN-EP-2022-118.- Geneva : CERN, 2022 Draft (restricted): PDF; Fulltext: CERN-EP-2022-118 - PDF; CERN-EP-2022-118_2 - PDF;
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2.
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SEARCH FOR AN INVISIBLE VECTOR BOSON FROM $\pi^{0}$ DECAYS AT NA62 / NA62 Collaboration
The high-intensity setup, trigger system flexibility and detector performance make the NA62 experiment at CERN particularly suitable to perform direct searches for long-lived hidden-sector particles, such as dark photons, dark scalars, axion-like particles, and heavy neutral leptons, using kaon and pion decays as well as operating the experiment in dump mode. Results from NA62 will be presented on a search for $π^0$ decays to one photon and an invisible massive dark photon. [...]
2019 - 6 p. - Published in : (2019) , pp. 194-199 Fulltext: PDF;
In : International Conference on the Structure and the Interactions of the Photon, Frascati, Italy, 3 - 7 Jun 2019, pp.194-199
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3.
(36)
Recent NA48/2 and NA62 results / Madigozhin, D. (Dubna, JINR) ; Ambrosino, F. ; Antonelli, A. ; Anzivino, G. ; Arcidiacono, R. ; Baldini, W. ; Balev, S. ; Batley, J.R. ; Behler, M. ; Bifani, S. et al.
The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the $K_{e4}$ modes: $K_{e4}(+-)$ ($K^\pm \to \pi^+ \pi^- e^\pm \nu$) and $K_{e4}(00)$ ($K^\pm \to \pi^0 \pi^0 e^\pm \nu$) with nearly one percent background contamination. It leads to the improved measurement of branching fractions and detailed form factor studies. [...]
arXiv:1408.0585.- 2014 - 4 p. - Published in : (2014) , pp. 369-374 Fulltext: Pages_from_C14-03-22_369 - PDF; arXiv:1408.0585 - PDF; External link: Preprint
In : 49th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 22 - 29 Mar 2014, pp.369-374
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4.
(35)
Fine structure in the α decay of At218 / IS534 Collaboration
2019 - Published in : 10.1103/PhysRevC.99.064317
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5.
(35)
Search for $K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ at NA62 / NA62 Collaboration
$K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. [...]
arXiv:1807.09101. - 2018. - 8 p.
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6.
(35)
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV / DELPHI Collaboration
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the parameter space of the Minimal Supersymmetric Standard Model (MSSM)..
hep-ex/0102034; CERN-EP-2000-133; CERN-EP-2000-133.- Geneva : CERN, 2001 - 23 p. - Published in : Eur. Phys. J. C 19 (2001) 201-212 Fulltext: ep-2000-133 - PDF; arXiv:hep-ex_0102034 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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7.
(35)
Study of the $e^{+}e^{-}\to Ze^{+}e^{-}$ Process at LEP / L3 Collaboration
The cross section of the process $\rm e^+e^-\rightarrow Ze^+e^-$ is measured with ~0.7\,fb$^{-1}$ of data collected with the L3 detector at LEP. Decays of the Z boson into quarks and muons are considered at centre-of-mass energies ranging from $183$ GeV up to $209$ GeV. [...]
hep-ex/0303041; CERN-EP-2002-103; CERN-EP-2002-103; CERN-L3-263.- Geneva : CERN, 2003 - 12 p. - Published in : Phys. Lett. B 561 (2003) 73-81 Fulltext: ep-2002-103 - PDF; S0370269303004064 - XML; arXiv:hep-ex_0303041 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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8.
(34)
Search for Excited Leptons at LEP / L3 Collaboration
A search for charged and neutral excited leptons is performed in 217 pb-1 of data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV. The pair- and single-production mechanisms are investigated and no signals are detected. [...]
hep-ex/0306016; CERN-EP-2003-013; CERN-EP-2003-013; CERN-L3-268.- Geneva : CERN, 2003 - 16 p. - Published in : Phys. Lett. B 568 (2003) 23-34 Fulltext: arXiv:hep-ex_0306016 - PDF; ep-2003-013 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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9.
(34)
Midrapidity antiproton-to-proton ratio in pp collisions at $\sqrt{s} = 0.9$ and $7$~TeV measured by the ALICE experiment / ALICE collaboration
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at $\sqrt{s} = 0.9$ and $7$~TeV during the initial running periods of the Large Hadron Collider(LHC). The measurement covers the transverse momentum interval $0.45 < p_{\rm{t}} < 1.05$~GeV/$c$ and rapidity $|y| < 0.5$. [...]
arXiv:1006.5432.- 2010 - 12 p. - Published in : Phys. Rev. Lett. 105 (2010) 072002 APS Open Access article: PDF; Fulltext: PDF; External link: DURHAM
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10.
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Single Intermediate Vector Boson Production in $e^+ e^-$ collisions at $\sqrt{s}$ = 183 and 189 GeV / DELPHI Collaboration
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI experiment at centre-of-mass energies of 182.6~GeV and 188.6~GeV, respectively. The cross-sections for the reactions were determined in limited kinematic regions. [...]
hep-ex/0107067; CERN-EP-2001-033; CERN-EP-2001-033.- Geneva : CERN, 2001 - 18 p. - Published in : Phys. Lett. B 515 (2001) 238 Fulltext: ep-2001-033 - PDF; ep-2001-033_paper0278 - PS.GZ; arXiv:hep-ex_0107067 - PDF; External link: Preprint
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 399 - Please contact the library if you need to access this document.
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