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CERN Document Server Encontrados 61 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.61 segundos. 
1.
Trans-Planckian wimpzillas / Kolb, Edward W. (Chicago U., EFI ; Chicago U., KICP) ; Starobinsky, A.A. (Landau Inst.) ; Tkachev, I.I. (CERN)
Two previously proposed conjectures--gravitational trans-Planckian particle creation in the expanding universe, and the existence of ultra-heavy stable particles with masses up to the Planck scale (wimpzillas)--are combined in a proposal for trans-Planckian particle creation of wimpzillas. This new scenario leads to a huge enhancement in their production compared to mechanisms put forward earlier. [...]
hep-th/0702143; FERMILAB-PUB-05-372-A.- 2007 - 6 p. - Published in : JCAP 0707 (2007) 005 Access to fulltext document: PDF; Fulltext: PDF; External links: Fermilab Library Server (fulltext available); JCAP Electronic Journal Server
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2.
Is astronomy possible with neutral ultra-high energy cosmic ray particles existing in the Standard Model? / Tinyakov, P.G. (Brussels U. ; Moscow, INR) ; Tkachev, Igor I. (CERN ; Moscow, INR)
The recently observed correlation between HiRes stereo cosmic ray events with energies E ~ 10 EeV and BL Lacs occurs at an angle which strongly suggests that the primary particles are neutral. We analyze whether this correlation, if not a statistical fluctuation, can be explained within the Standard Model, i.e., assuming only known particles and interactions. [...]
astro-ph/0612359.- 2008 - 7 p. - Published in : J. Exp. Theor. Phys. 106 (2008) 481-487 Access to fulltext document: PDF; Fulltext: PDF; External link: astro-ph/0612359 PDF
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3.
The $\nu$ MSM, Inflation, and Dark Matter / Shaposhnikov, M E (ITPP, Lausanne ; CERN) ; Tkachev, I I (CERN)
We show how to enlarge the $\nu$MSM (the minimal extension of the standard model by three right-handed neutrinos) to incorporate inflation and provide a common source for electroweak symmetry breaking and for right-handed neutrino masses. In addition to inflation, the resulting theory can explain simultaneously dark matter and the baryon asymmetry of the Universe; it is consistent with experiments on neutrino oscillations and with all astrophysical and cosmological constraints on sterile neutrino as a dark matter candidate. [...]
hep-ph/0604236; CERN-PH-TH-2006-069.- Geneva : CERN, 2006 - 9 p. - Published in : Phys. Lett. B 639 (2006) 414-417 Access to fulltext document: PDF; External link: hep-ph/0604236 PDF
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4.
Estimate of the correlation signal between cosmic rays and BL Lacs in future data / Gorbunov, Dmitry S. (Moscow, INR) ; Tinyakov, P.G. (Moscow, INR ; Brussels U.) ; Tkachev, I.I. (Moscow, INR ; CERN) ; Troitsky, Sergey V. (Moscow, INR)
The existing correlation between BL Lacertae objects (BL Lacs) and cosmic-ray events observed by HiRes experiment provide sufficient information to formulate quantitatively the hypothesis about the flux of neutral cosmic-ray particles originated from BL Lacs. We determine the potential of future cosmic ray experiments to test this hypothesis by predicting the number of coincidences between arrival directions of cosmic rays and positions of BL Lacs on the celestial sphere, which should be observed in the future datasets. [...]
astro-ph/0508329.- 2006 - 5 p. - Published in : JCAP 01 (2006) 025 Access to fulltext document: PDF; Fulltext: PDF; External link: JCAP Electronic Journal Server
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5.
GoToGrid - A Web-Oriented Tool in Support to Sites for LCG Installations / Schulz, M (CERN) ; Diez-Andino-Sancho, G (CERN) ; Keeble, O (CERN) ; Nyczyk, P (CERN) ; Retico, A (CERN) ; Usai, A (CERN) ; Tkachev, I I (CERN)
CERN, 2005 Published version from CERN: PDF;
In : Computing in High Energy Physics and Nuclear Physics 2004, Interlaken, Switzerland, 27 Sep - 1 Oct 2004, pp.1018 (CERN-2005-002)
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6.
Identification of extragalactic sources of the highest energy EGRET photons by correlation analysis / Gorbunov, D.S. (Moscow, INR) ; Tinyakov, P.G. (Brussels U.) ; Tkachev, I.I. (CERN ; Moscow, INR) ; Troitsky, Sergey V. (Moscow, INR)
We found significant correlations between the arrival directions of the highest energy photons (E>10 GeV) observed by EGRET and positions of the BL Lac type objects (BL Lacs). The observed correlations imply that not less than three per cent of extragalactic photons at these energies originate from BL Lacs. [...]
astro-ph/0505597.- 2005 - 5 p. - Published in : Mon. Not. R. Astron. Soc. Lett. 362 (2005) L30-L34 Access to fulltext document: PDF; Preprint: PDF; External link: astro-ph/0505597 PDF
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7.
Cosmological attractors in massive gravity / Dubovsky, S.L. (CERN ; Moscow, INR) ; Tinyakov, P.G. (Brussels U. ; Moscow, INR) ; Tkachev, I.I. (CERN ; Moscow, INR)
We study Lorentz-violating models of massive gravity which preserve rotations and are invariant under time-dependent shifts of the spatial coordinates. In the linear approximation the Newtonian potential in these models has an extra ``confining'' term proportional to the distance from the source. [...]
hep-th/0504067; ULB-TH-05-05; ULB-TH-2005-005.- Bruxelles : Brussels Univ., 2005 - 26 p. - Published in : Phys. Rev. D 72 (2005) 084011 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/0504067 PDF
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8.
Deflections of cosmic rays in a random component of the Galactic magnetic field / Tinyakov, P.G. (Brussels U. ; Moscow, INR) ; Tkachev, Igor I. (CERN ; Moscow, INR)
We express the mean square deflections of the ultra-high energy cosmic rays (UHECR) caused by the random component of the Galactic magnetic field (GMF) in terms of the GMF power spectrum and use recent measurements of the GMF spectrum to estimate them quantitatively. We find that deflections due to the random field typically constitute 0.03-0.3 of the deflections which are due to the regular component and depend on the direction on the sky. [...]
astro-ph/0411669.- 2005 - 7 p. - Published in : Astropart. Phys. 24 (2005) 32-43 Access to fulltext document: PDF; Fulltext: PDF; External link: astro-ph/0411669 PDF
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9.
Massive graviton as a testable cold dark matter candidate / Dubovsky, S.L. (CERN ; Moscow, INR) ; Tinyakov, P.G. (Brussels U. ; Moscow, INR) ; Tkachev, I.I. (CERN ; Moscow, INR)
We construct a consistent model of gravity where the tensor graviton mode is massive, while linearized equations for scalar and vector metric perturbations are not modified. The Friedmann equation acquires an extra dark-energy component leading to accelerated expansion. [...]
hep-th/0411158.- 2005 - 10 p. - Published in : Phys. Rev. Lett. 94 (2005) 181102/1-4 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/0411158 PDF
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10.
BL Lacs are probable sources of UHECR / Tinyakov, Peter G (Lausanne U.) ; Tkachev, I I (CERN)
We identify the subset of cosmic rays observed by AGASA and Yakutsk experiments which exhibits the largest degree of autocorrelations. We search for astrophysical sources which can be responsible for these autocorrelations and find significant correlations with BL Lacs at small angles (approx 2 deg. [...]
2002 - Published in : Nucl. Phys. B, Proc. Suppl. 110 (2002) 501-503
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CERN Document Server : Encontrados 61 registros   1 - 10siguientefinal  ir al registro:
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