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Träfflista för sökning "WFRF:(Niemi M.) srt2:(2005-2009)"

Sökning: WFRF:(Niemi M.) > (2005-2009)

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  • Armesto, N., et al. (författare)
  • Heavy-ion collisions at the LHC-Last call for predictions
  • 2008
  • Ingår i: Journal of Physics G. - : IOP Publishing. - 0954-3899 .- 1361-6471. ; 35:5, s. 054001-
  • Forskningsöversikt (refereegranskat)abstract
    • This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last Call for Predictions', held from 14th May to 10th June 2007.
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  • Chernodub, M. N., et al. (författare)
  • Baryon number violation and a new electroweak interaction
  • 2009
  • Ingår i: Physical Review D. - 1550-7998. ; 79:7, s. 077901-
  • Tidskriftsartikel (refereegranskat)abstract
    • We introduce a new supercurrent in the electroweak sector of the standard model. Its interaction with the hypergauge field influences the mass of the Z boson but has no effect on the W-+/- boson masses. In the leptonic sector it affects the numerical value of the vector and axial coupling constants between neutral currents and the Z boson, and a comparison with experimental values yields an upper bound to the strength of the coupling between the supercurrent and the hypergauge field. In the baryonic sector the supercurrent gives a new contribution to the anomaly equation for baryon number current. As a consequence it may have an effect on baryogenesis.
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  • Chernodub, M. N., et al. (författare)
  • Embedding Brans-Dicke gravity into electroweak theory
  • 2008
  • Ingår i: Physical Review D. - 1550-7998 .- 1550-2368. ; 77:12, s. 127902-
  • Tidskriftsartikel (refereegranskat)abstract
    • We argue that a version of the four dimensional Brans-Dicke theory can be embedded in the standard flat spacetime electroweak theory. The embedding involves a change of variables that separates the isospin from the hypercharge in the electroweak theory.
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  • Chernodub, M. N., et al. (författare)
  • Non-abelian supercurrents and de Sitter ground state in electroweak theory
  • 2008
  • Ingår i: Journal of High Energy Physics (JHEP). - 1126-6708 .- 1029-8479. ; :12, s. 014-
  • Tidskriftsartikel (refereegranskat)abstract
    • We show that gauge symmetry breaking in the Weinberg-Salam model can be implemented by a mere change of variables and without any explicit gauge fixing. The change of variables entails the concept of supercurrent which has been widely employed in the study of superconductivity. It also introduces a separation between the isospin and the hypercharge, suggesting that our new variables describe a strongly coupled regime of the electroweak theory. We discuss the description of various embedded topological defects in terms of these variables. We also propose that in terms of our variables the Weinberg-Salam model can be interpreted in terms of a gravity theory with the modulus of Higgs field as dilaton and the de Sitter space as the ground state.
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  • Resultat 1-10 av 16

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