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CERN Document Server 2,010 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.34 sekúnd. 
1.
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High energy rise of the cosmic ray positron fraction : Possible causes / Serpico, Pasquale D (CERN)
In the last year, the PAMELA satellite has suggested an “anomalous” rise with energy of the cosmic ray positron fraction. Several explanations have been proposed: here I recapitulate the basic physics behind astrophysical explanations and summarize the existing issues in interpreting the data via dark matter. [...]
2009 - Published in : Nucl. Phys. B, Proc. Suppl. 194 (2009) 145-150
In : New Horizons for Modern Cosmology, Florence, Italy, 19 Jan - 13 Mar 2009, pp.145-150
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2.
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High-energy antiprotons from old supernova remnants / Blasi, Pasquale (Arcetri Observ.) ; Serpico, Pasquale D. (CERN)
A recently proposed model (arXiv:0903.2794) explains the rise in energy of the positron fraction measured by the PAMELA satellite in terms of hadronic production of positrons in aged supernova remnants, and acceleration therein. Here we present a preliminary calculation of the anti-proton flux produced by the same mechanism. [...]
arXiv:0904.0871.- 2009 - 4 p. - Published in : Phys. Rev. Lett. 103 (2009) 081103 APS Published version, local copy : PDF; Fulltext: PDF; External link: Preprint
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Possible causes of a rise with energy of the cosmic ray positron fraction / Serpico, Pasquale Dario (CERN)
Based on general considerations rather than model-dependent fits to specific scenarios, we argue that an increase with energy of the positron fraction in cosmic rays, suggested by several experiments at E>~10 GeV, most likely requires a primary source of electron-positron pairs. We discuss the possible alternatives, and find none of them plausible on astrophysical or particle physics grounds. [...]
arXiv:0810.4846; CERN-PH-TH-2009-007.- 2009 - 4 p. - Published in : Phys. Rev. D 79 (2009) 021302 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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4.
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Pulsars as the Sources of High Energy Cosmic Ray Positrons / Hooper, Dan (Chicago U., Astron. Astrophys. Ctr. ; Fermilab) ; Blasi, Pasquale (Arcetri Observ. ; Fermilab ; Gran Sasso) ; Serpico, Pasquale Dario (CERN ; Fermilab)
Recent preliminary results from the PAMELA satellite indicate the presence of a large flux of positrons (relative to electrons) in the cosmic ray spectrum between approximately 10 and 50 GeV. As annihilating dark matter particles in many models are predicted to contribute to the cosmic ray positron spectrum in this energy range, a great deal of interest has resulted from this observation. [...]
arXiv:0810.1527; FERMILAB-PUB-08-429-A; CERN-PH-TH-2008-228; FERMILAB-PUB-08-429-A.- 2009 - 10 p. - Published in : JCAP 01 (2009) 025 Fulltext: PDF; IOP Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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5.
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Galactic beta-beams as a tool to measure the neutrino 13-mixing angle and the CP-phase with neutrino telescopes / Serpico, Pasquale Dario
2005 Published version: PDF;
In : 29th International Cosmic Ray Conference, Pune, India, 3 - 10 Aug 2005, pp.33 (v.5)
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6.
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Dark Matter Indirect Detection: theory aspects / Serpico, Pasquale (speaker) (LAPTH Annecy)
2011 - 30. ESA-CERN Workshops; PPC 2011: Vth INTERNATIONAL WORKSHOP ON THE INTERCONNECTION BETWEEN PARTICLE PHYSICS AND COSMOLOGY External links: Talk details; Event details In : PPC 2011: Vth INTERNATIONAL WORKSHOP ON THE INTERCONNECTION BETWEEN PARTICLE PHYSICS AND COSMOLOGY
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Synthesis of CNO elements in standard BBN / Iocco, F ; Serpico, Pasquale Dario
2006 - Published in : PoS: NIC-IX (2006) , pp. 201 Published version from PoS: PDF;
In : 9th International Symposium on Nuclear Astrophysic: Nuclei in the Cosmos, CERN, Geneva, Switzerland, 25 - 30 Jun 2006, pp.201
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8.
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Ultra-high energy cosmic ray autocorrelation function after Auger / Dario Serpico, Pasquale (CERN)
We report results of a global autocorrelation analysis of the Auger data, with the aim to constrain the number density ns of ultrahigh energy cosmic ray (UHECR) sources, estimating at the same time the effect of the bias of UHECR sources and of the systematic energy scale uncertainty on ns. The data show no significant small-scale clustering which may be explained by magnetic deflections over scales of a few degrees. [...]
2009 - Published in : Nucl. Phys. B, Proc. Suppl. 188 (2009) 283-285
In : Neutrino Oscillation Workshop 2008, Otranto, Italy, 06 - 12 Sep 2008, pp.283-285
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PAMELA set to take particle physics into orbit / Pearce, M
The PAMELA experiment, scheduled to be launched from the Baikonur cosmodrome next year, is set to provide a better understanding of the antimatter component of cosmic rays..
2002 - Published in : CERN Cour.: 42 (2002) , no. 8, pp. 24-5 External link: CERN Courier server
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Dark Matter "Transporting" Mechanism Explaining Positron Excesses / Kim, Doojin (CERN) ; Park, Jong-Chul (Chungnam Natl. U.) ; Shin, Seodong (Yonsei U. ; Chicago U., EFI)
We propose a novel mechanism to explain the positron excesses, which are observed by satellite-based telescopes including PAMELA and AMS-02, in dark matter (DM) scenarios. The novelty behind the proposal is that it makes direct use of DM around the Galactic Center where DM populates most densely, allowing us to avoid tensions from cosmological and astrophysical measurements. [...]
arXiv:1702.02944; CERN-TH-2017-036.- 2018-04-16 - 5 p. - Published in : JHEP 04 (2018) 093 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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