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CERN Document Server Намерени са 2,011 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.48 секунди. 
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Extra U(1), effective operators, anomalies and dark matter / Dudas, Emilian (Ecole Polytechnique, CPHT) ; Heurtier, Lucien (Ecole Polytechnique, CPHT) ; Mambrini, Yann (Orsay, LPT) ; Zaldivar, Bryan (Madrid, IFT)
A general analysis is performed on the dimension-six operators mixing an almost hidden Z' to the Standard Model (SM), when the Z' communicates with the SM via heavy mediators. These are fermions charged under both Z' and the SM, while all SM fermions are neutral under Z'. [...]
arXiv:1307.0005; LPT-Orsay-13-49; CPHT-RR-054-0613; IFT-UAM-CSIC-13-76.- 2013 - 35 p. - Published in : JHEP 11 (2013) 083 Springer Open Access article: PDF; External link: Preprint
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(In)visible Z' and dark matter / Dudas, E (Ecole Polytechnique, CPHT ; Orsay, LPT) ; Mambrini, Y (Orsay, LPT) ; Pokorski, S (Warsaw U.) ; Romagnoni, A (Ecole Polytechnique, CPHT ; Orsay, LPT)
We study the consequences of an extension of the standard model containing an invisible extra gauge group under which the SM particles are neutral. We show that effective operators, generated by loops of heavy chiral fermions charged undervboth gauge groups and connecting the new gauge sector to the Standard Model, can give rise to a viable dark matter candidate. [...]
arXiv:0904.1745.- 2009 - Published in : JHEP 08 (2009) 014 SISSA/IOP Open Access article: PDF; External link: Preprint
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3.
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Modelling of the ECR sulphur source / Baskaran, R ; Heurtier, J M ; Hill, C E
CERN-PS-92-42-HI.- Geneva : CERN, 1992 - 15 p. Fulltext: PDF;
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Modelling of the Electron Resonance Sulphur source / Baskaran, R ; Heurtier, J M ; Hill, C E
CERN-PS-92-42-HI.- Geneva : CERN, 1993 - 15 p. - Published in : Rev. Sci. Instrum. 64 (1993) 191-196 Fulltext: PDF; - Please contact the library if you need to access this document.
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Negative hydrogen ion microwave (ECR) source / Baskaran, R ; Heurtier, J M ; Hill, C E
CERN-PS-HI-Tech-Note-92-04.- Geneva : CERN, 1992 - 12 p. Fulltext: PDF;
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6.
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Extra U(1) as natural source of a monochromatic gamma ray line / Dudas, Emilian (CERN ; Ecole Polytechnique, CPHT) ; Mambrini, Yann (Orsay, LPT) ; Pokorski, Stefan (Warsaw U. ; TUM-IAS, Munich) ; Romagnoni, Alberto (Madrid, IFT ; Madrid, Autonoma U.)
Extensions of the Standard Model with an extra U'(1) abelian group generically generate terms coming from loops of heavy fermions, leading to three gauge boson couplings, in particular Z'Z gamma. We show that WMAP data constrains the gauge coupling of the group g_D to values comparable with the electro-weak ones, rather independently of the mass of Z'. [...]
arXiv:1205.1520; CERN-PH-TH-2012-109; CPHT-RR-018.0512; FTUAM-12-90; IFT-UAM-CSIC-12-37; LPT-ORSAY-12-39; CERN-PH-TH-2012-109.- 2012 - 6 p. - Published in : JHEP 10 (2012) 123 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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Some phenomenology of dimension-six operators / Rizzo, T G
IS-J-1618. - 1984. - 17 p.
CERN library copies
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8.
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MSSM Higgs sector with dimension-five and dimension-six operators / Antoniadis, I (CERN) ; Dudas, E (Ecole Polytechnique, CPHT ; Orsay, LPT) ; Ghilencea, D M (CERN) ; Tziveloglou, P (CERN ; Cornell U., Phys. Dept.)
An effective approach to understanding the nature of new physics beyond the SM or the MSSM models is presented. We then apply this method to discuss the extension of the MSSM Higgs sector with effective operators of dimension d = 5 and d = 6, that may be generated by " new physics " beyond this sector. [...]
Paris, France : Moriond, 2010 - 12 p. - Published in : , pp. 233-244 Fulltext: PDF;
In : 45th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 06 - 13 Mar 2010, pp.233-244
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Effective Field Theory with Two Higgs Doublets / Crivellin, Andreas (PSI, Villigen) ; Ghezzi, Margherita (PSI, Villigen) ; Procura, Massimiliano (CERN)
In this article we extend the effective field theory framework describing new physics effects to the case where the underlying low-energy theory is a Two-Higgs-Doublet model. We derive a complete set of independent operators up to dimension six assuming a $Z_2$-invariant CP-conserving Higgs potential. [...]
arXiv:1608.00975; CERN-TH-2016-157; PSI-16-09; CERN-TH-2016-157; PSI-16-09.- 2016-09-28 - 19 p. - Published in : JHEP 09 (2016) 160 Article from SCOAP3: scoap3-fulltext - PDF; 406f0c46e2d9ec1b5660667e46e7af3a - PDFPDFA; Fulltext: PDF; Preprint: PDF; Springer Open Access article: PDF; External link: Article from SCOAP3
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Anomaly driven signatures of new invisible physics at the Large Hadron Collider / Antoniadis, Ignatios (CERN ; Ecole Polytechnique, CPHT) ; Boyarsky, Alexey (Zurich, ETH ; BITP, Kiev) ; Espahbodi, Sam (CERN ; Michigan U., MCTP) ; Ruchayskiy, Oleg (IPT, Lausanne) ; Wells, James D. (CERN ; Michigan U., MCTP)
Many extensions of the Standard Model (SM) predict new neutral vector bosons at energies accessible by the Large Hadron Collider (LHC). We study an extension of the SM with new chiral fermions subject to non-trivial anomaly cancellations. [...]
arXiv:0901.0639; CERN-PH-TH-2009-006; CERN-PH-TH-2009-006.- 2010 - 22 p. - Published in : Nucl. Phys. B 824 (2010) 296-313 Fulltext: PDF; External link: Preprint
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