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Search for dark photons as candidates for Dark Matter with FUNK
/ Andrianavalomahefa, Arnaud (KIT, Karlsruhe) ; Daumiller, Kai (KIT, Karlsruhe) ; Döbrich, Babette (CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Jaeckel, Joeg (U. Heidelberg, ITP) ; Kowalski, Marek (Humboldt U., Berlin ; DESY, Zeuthen) ; Lindner, Axel (DESY, Zeuthen) ; Mathes, Hermann-Josef (KIT, Karlsruhe) ; Redondo, Javier (Zaragoza U.) ; Roth, Markus (KIT, Karlsruhe) et al.
An additional U(1) symmetry predicted in theories beyond the Standard Model of particle physics can give rise to hidden (dark) photons. Depending on the mass and density of these hidden photons, they could account for a large fraction of the Dark Matter observed in the Universe. [...]
2021 - 8 p.
- Published in : PoS ICRC2019 (2019) 517
Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.517
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3.
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$MCE_{Q}$ - numerical code for inclusive lepton flux calculations
/ Fedynitch, Anatoli (KIT, Karlsruhe ; CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Gaisser, Thomas K (Delaware U., Bartol Inst.) ; Riehn, Felix (KIT, Karlsruhe) ; Stanev, Todorov (Delaware U., Bartol Inst.)
Calculations of atmospheric lepton spectra at very high energy experience a revived interest after
the detection of the diffuse astrophysical neutrino flux by the IceCube observatory. In order
to determine its spectral index and normalization with higher accuracy, the uncertainties of the
atmospheric background have to modelled correctly and taken into account in the experimental
fits. [...]
SISSA, 2016
- Published in : PoS ICRC2015 (2016) 1129
Fulltext: PoS(ICRC2015)1129 - PDF; ICRC2015_1129 - PDF; External links: Fulltext; PoS server
In : 34th International Cosmic Ray Conference, The Hague, The Netherlands, 30 Jul - 6 Aug 2015, pp.1129
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4.
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The FUNK search for Hidden Photon Dark Matter in the eV range
/ Döbrich, Babette (CERN) ; Daumiller, Kai (KIT, Karlsruhe, Dept. Phys.) ; Engel, Ralph (KIT, Karlsruhe, Dept. Phys.) ; Jaeckel, Joerg (Heidelberg U.) ; Kowalski, Marek (DESY ; Humboldt U., Berlin) ; Lindner, Axel (DESY) ; Mathes, Hermann-Josef (KIT, Karlsruhe, Dept. Phys.) ; Redondo, Javier (Zaragoza U. ; Munich, Max Planck Inst.) ; Roth, Markus (KIT, Karlsruhe, Dept. Phys.) ; Schäfer, Christoph (KIT, Karlsruhe, Dept. Phys.) et al.
We give a brief update on the search for Hidden Photon Dark Matter with FUNK. [...]
arXiv:1510.05869.
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2015. - 4 p.
Preprint
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5.
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A new version of the event generator Sibyll
/ Riehn, Felix (KIT, Karlsruhe) ; Engel, Ralph (KIT, Karlsruhe) ; Fedynitch, Anatoli (KIT, Karlsruhe ; CERN) ; Gaisser, Thomas K. (Delaware U., Bartol Inst.) ; Stanev, Todor (Delaware U., Bartol Inst.)
The event generator Sibyll can be used for the simulation of hadronic multiparticle production up to the highest cosmic ray energies. It is optimized for providing an economic description of those aspects of the expected hadronic final states that are needed for the calculation of air showers and atmospheric lepton fluxes. [...]
arXiv:1510.00568.-
2016 - 8 p.
- Published in : PoS ICRC2015 (2016) 558
Fulltext: arXiv:1510.00568 - PDF; ICRC2015_558 - PDF; External link: PoS server
In : 34th International Cosmic Ray Conference, The Hague, The Netherlands, 30 Jul - 6 Aug 2015, pp.558
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6.
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Search for dark matter in the hidden-photon sector with a large spherical mirror
/ Veberic, Darko (KIT, Karlsruhe) ; Daumiller, Kai (KIT, Karlsruhe) ; Döbrich, Babette (CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Jaeckel, Joerg (U. Heidelberg, ITP) ; Kowalski, Marek (DESY ; Humboldt U., Berlin) ; Lindner, Axel (DESY) ; Mathes, Hermann-Josef (KIT, Karlsruhe) ; Redondo, Javier (Zaragoza U.) ; Roth, Markus (KIT, Karlsruhe) et al.
/FUNK Experiment
If dark matter consists of hidden-sector photons which kinetically mix with regular photons, a tiny oscillating electric-field component is present wherever we have dark matter. In the surface of conducting materials this induces a small probability to emit single photons almost perpendicular to the surface, with the corresponding photon frequency matching the mass of the hidden photons. [...]
arXiv:1509.02386.-
SISSA, 2015-08-11 - 9 p.
- Published in : PoS ICRC2015 (2015) 1191
Fulltext: PoS(ICRC2015)1191 - PDF; arXiv:1509.02386 - PDF; Published version from PoS: PDF; External link: PoS server
In : 34th International Cosmic Ray Conference, The Hague, The Netherlands, 30 Jul - 6 Aug 2015, pp.1191
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7.
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Calculation of conventional and prompt lepton fluxes at very high energy
/ Fedynitch, Anatoli (KIT, Karlsruhe ; KIT, Karlsruhe, Dept. Phys. ; CERN) ; Engel, Ralph (KIT, Karlsruhe ; KIT, Karlsruhe, Dept. Phys.) ; Gaisser, Thomas K. (Delaware U., Bartol Inst.) ; Riehn, Felix (KIT, Karlsruhe ; KIT, Karlsruhe, Dept. Phys.) ; Stanev, Todor (Delaware U., Bartol Inst.)
An efficient method for calculating inclusive conventional and prompt atmospheric leptons fluxes is presented. The coupled cascade equations are solved numerically by formulating them as matrix equation. [...]
arXiv:1503.00544.-
2015-08-04 - 8 p.
- Published in : EPJ Web Conf. 99 (2015) 08001
Fulltext: epjconf-isvhecri2014_08001 - PDF; arXiv:1503.00544 - PDF; External link: Preprint
In : 18th International Symposium on Very High Energy Cosmic Ray Interactions, CERN, Geneva, Switzerland, 18 - 22 Aug 2014, pp.08001
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Charm production in SIBYLL
/ Riehn, Felix (KIT, Karlsruhe) ; Engel, Ralph (KIT, Karlsruhe) ; Fedynitch, Anatoli (KIT, Karlsruhe ; CERN) ; Gaisser, Thomas K. (Delaware U., Bartol Inst.) ; Stanev, Todor (Delaware U., Bartol Inst.)
SIBYLL 2.1 is an event generator for hadron interactions at the highest energies. It is commonly used to analyze and interpret extensive air shower measurements. [...]
arXiv:1502.06353.-
2015-08-04 - 7 p.
- Published in : EPJ Web Conf. 99 (2015) 12001
Fulltext: epjconf-isvhecri2014_12001 - PDF; arXiv:1502.06353 - PDF; External link: Preprint
In : 18th International Symposium on Very High Energy Cosmic Ray Interactions, CERN, Geneva, Switzerland, 18 - 22 Aug 2014, pp.12001
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The strong interaction at the collider and cosmic-rays frontiers
/ d'Enterria, David (CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Pierog, Tanguy (KIT, Karlsruhe) ; Ostapchenko, Sergey (Norwegian U. Sci. Tech.) ; Werner, Klaus (SUBATECH, Nantes)
First data on inclusive particle production measured in proton-proton collisions at the Large Hadron Collider (LHC) are compared to predictions of various hadron-interaction Monte Carlos (QGSJET, EPOS and SIBYLL) used commonly in high-energy cosmic-ray physics. While reasonable overall agreement is found for some of the models, none of them reproduces consistently the sqrt(s) evolution of all the measured observables. [...]
arXiv:1106.2453.-
2012 - 7 p.
Fulltext: PDF; External link: Preprint
In : 30 Years of strong interactions: a three-day meeting in honor of Joseph Cugnon and Hans-Jurgen Pirner, Spa, Liege, Belgium, 6 - 8 Apr 2011, pp.173-179
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Constraints from the first LHC data on hadronic event generators for ultra-high energy cosmic-ray physics
/ d'Enterria, David (ICREA, Barcelona ; ICC, Barcelona U. ; CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Pierog, Tanguy (KIT, Karlsruhe) ; Ostapchenko, Sergey (Norwegian U. Sci. Tech. ; SINP, Moscow) ; Werner, Klaus (SUBATECH, Nantes)
The determination of the primary energy and mass of ultra-high-energy cosmic-rays (UHECR) generating extensive air-showers in the Earth's atmosphere, relies on the detailed modeling of hadronic multiparticle production at center-of-mass (c.m.) collision energies up to two orders of magnitude higher than those studied at particle colliders. The first Large Hadron Collider (LHC) data have extended by more than a factor of three the c.m. [...]
arXiv:1101.5596.-
2011 - 25 p.
- Published in : Astropart.Phys. 35 (2011) 98-113
External link: Preprint
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