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Snowmass Theory Frontier: Astrophysics and Cosmology
/ Green, Daniel (UC, San Diego) ; Ruderman, Joshua T. (New York U., CCPP) ; Safdi, Benjamin R. (UC, Berkeley) ; Shelton, Jessie (Illinois U., Urbana) ; Achucarro, Ana (Leiden U.) ; Adshead, Peter (Illinois U., Urbana) ; Akrami, Yashar (Case Western Reserve U. ; Imperial Coll., London) ; Baryakhtar, Masha (Washington U., Seattle) ; Baumann, Daniel (Taiwan, Natl. Taiwan U. ; U. Amsterdam, GRAPPA) ; Berlin, Asher (Fermilab) et al.
We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. [...]
arXiv:2209.06854 ; FERMILAB-PUB-22-721-T.
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57.
Fermilab Library Server - Fulltext - Fulltext
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Pulsar Timing Probes of Primordial Black Holes and Subhalos
/ Dror, Jeff A. (LBL, Berkeley ; UC, Berkeley) ; Ramani, Harikrishnan (LBL, Berkeley ; UC, Berkeley) ; Trickle, Tanner (LBL, Berkeley ; UC, Berkeley) ; Zurek, Kathryn M. (CERN ; LBL, Berkeley ; UC, Berkeley)
Pulsars act as accurate clocks, sensitive to gravitational redshift and acceleration induced by transiting clumps of matter. We study the sensitivity of pulsar timing arrays (PTAs) to single transiting compact objects, focusing on primordial black holes and compact subhalos in the mass range from $10^{-12} M _{\odot}$ to well above $100~M_\odot$. [...]
arXiv:1901.04490.-
2019-07-13 - 18 p.
- Published in : Phys. Rev. D 100 (2019) 023003
Fulltext: PDF; Fulltext from Publisher: PDF;
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Direct Detection of Bound States of Asymmetric Dark Matter
/ Coskuner, Ahmet (LBL, Berkeley ; UC, Berkeley) ; Grabowska, Dorota M. (LBL, Berkeley ; UC, Berkeley) ; Knapen, Simon (LBL, Berkeley ; UC, Berkeley ; Princeton, Inst. Advanced Study) ; Zurek, Kathryn M. (LBL, Berkeley ; UC, Berkeley ; CERN)
We study the reach of direct detection experiments for large bound states (containing $10^4$ or more dark nucleons) of Asymmetric Dark Matter. We consider ordinary nuclear recoils, excitation of collective modes (phonons), and electronic excitations, paying careful attention to the impact of the energy threshold of the experiment. [...]
arXiv:1812.07573.-
2019-08-29 - 23 p.
- Published in : Phys. Rev. D 100 (2019) 035025
Article from SCOAP3: PDF; Fulltext: PDF;
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Asymmetric Dark Stars and Neutron Star Stability
/ Gresham, Moira I. (Whitman Coll.) ; Zurek, Kathryn M. (CERN ; LBL, Berkeley ; UC, Berkeley)
We consider gravitationally bound states of asymmetric dark matter (ADM stars), and the impact of ADM capture on the stability of neutron stars. We derive and interpret the equation of state for ADM with both attractive and repulsive interactions, and solve the Tolman-Oppenheimer-Volkoff equations to find equilibrium sequences and maximum masses of ADM stars. [...]
arXiv:1809.08254.-
2019-04-13 - 17 p.
- Published in : Phys. Rev. D 99 (2019) 083008
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Directional Detection of Light Dark Matter with Polar Materials
/ Griffin, Sinead (UC, Berkeley ; LBL, Berkeley) ; Knapen, Simon (UC, Berkeley ; LBL, Berkeley) ; Lin, Tongyan (UC, Berkeley ; LBL, Berkeley ; UC, San Diego) ; Zurek, Kathryn M. (UC, Berkeley ; LBL, Berkeley ; CERN)
We consider the direct detection of dark matter (DM) with polar materials, where single production of optical or acoustic phonons gives excellent reach to scattering of sub-MeV DM for both scalar and vector mediators. Using Density Functional Theory (DFT), we calculate the material-specific matrix elements, focusing on GaAs and sapphire, and show that DM scattering in an anisotropic crystal such as sapphire features a strong directional dependence. [...]
arXiv:1807.10291.-
2018-12-28 - 27 p.
- Published in : Phys. Rev. D 98 (2018) 115034
Article from SCOAP3: PDF; Fulltext: PDF;
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Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
/ Curtin, David (Toronto U.) ; Drewes, Marco (Louvain U., CP3) ; McCullough, Matthew (CERN) ; Meade, Patrick (YITP, Stony Brook) ; Mohapatra, Rabindra N. (Maryland U.) ; Shelton, Jessie (Illinois U., Urbana) ; Shuve, Brian (Harvey Mudd Coll. ; SLAC) ; Accomando, Elena (Southampton U.) ; Alpigiani, Cristiano (Washington U., Seattle) ; Antusch, Stefan (Basel U.) et al.
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, and represent a natural and generic possibility for physics beyond the SM (BSM). [...]
arXiv:1806.07396; FERMILAB-PUB-18-264-T.-
2019-10-02 - 133 p.
- Published in : Rep. Prog. Phys. 82 (2019) 116201
Fulltext: 1806.07396 - PDF; fermilab-pub-18-264-t - PDF; External link: Fermilab Library Server (fulltext available)
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Astrophysical Signatures of Asymmetric Dark Matter Bound States
/ Gresham, Moira I. (Whitman Coll.) ; Lou, Hou Keong (LBL, Berkeley ; UC, Berkeley) ; Zurek, Kathryn M. (LBL, Berkeley ; UC, Berkeley ; CERN)
Nuggets---very large stable bound objects arising in the presence of a sufficiently attractive and long-range force and in the absence of a dark Coulomb force---are a smoking gun signature for Asymmetric Dark Matter (ADM). The cosmology of ADM nuggets is both generic and unique: nuggets feature highly exothermic fusion processes, which can impact the shape of the core in galaxies, as well as give rise to rare dark star formation. [...]
arXiv:1805.04512.-
2018-11-05 - 20 p.
- Published in : Phys. Rev. D 98 (2018) 096001
Article from SCOAP3: PDF; Fulltext: PDF;
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US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
/ Battaglieri, Marco (INFN, Genoa) ; Belloni, Alberto (Maryland U.) ; Chou, Aaron (Fermilab) ; Cushman, Priscilla (Minnesota U.) ; Echenard, Bertrand (Caltech) ; Essig, Rouven (SUNY, Stony Brook) ; Estrada, Juan (Fermilab) ; Feng, Jonathan L. (UC, Irvine) ; Flaugher, Brenna (Fermilab) ; Fox, Patrick J. (Fermilab) et al.
This white paper summarizes the workshop "U.S. [...]
arXiv:1707.04591 ; FERMILAB-CONF-17-282-AE-PPD-T.
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2017 - 113.
Fermilab Library Server (fulltext available) - Symmetry Magazine article - Full text - Fulltext
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Dark Sectors 2016 Workshop: Community Report
/ Alexander, Jim (Cornell U., Phys. Dept.) ; Battaglieri, Marco (INFN, Genoa) ; Echenard, Bertrand (Caltech) ; Essig, Rouven (SUNY, Stony Brook) ; Graham, Matthew (SLAC) ; Izaguirre, Eder (Perimeter Inst. Theor. Phys.) ; Jaros, John (SLAC) ; Krnjaic, Gordan (Fermilab) ; Mardon, Jeremy (Stanford U., Phys. Dept.) ; Morrissey, David (TRIUMF) et al.
This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years..
arXiv:1608.08632 ; FERMILAB-CONF-16-421.
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2016. - 66 p.
Fermilab Library Server (fulltext available) - Full text - Fulltext
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Recommendations on presenting LHC searches for missing transverse energy signals using simplified $s$-channel models of dark matter
/ Boveia, Antonio (Ohio State U.) ; Buchmueller, Oliver (ed.) (Imperial Coll., London) ; Busoni, Giorgio (ARC, CoEPP, Australia) ; D'Eramo, Francesco (UC, Santa Cruz, Inst. Part. Phys. ; UC, Santa Cruz (main)) ; De Roeck, Albert (U. Antwerp (main) ; CERN) ; De Simone, Andrea (SISSA, Trieste ; INFN, Trieste) ; Doglioni, Caterina (ed.) (Lund Inst. Tech.) ; Dolan, Matthew J. (ARC, CoEPP, Australia) ; Genest, Marie-Helene (LPSC, Grenoble) ; Hahn, Kristian (ed.) (Northwestern U.) et al.
This document summarises the proposal of the LHC Dark Matter Working Group on how to present LHC results on $s$-channel simplified dark matter models and to compare them to direct (indirect) detection experiments..
arXiv:1603.04156; CERN-LPCC-2016-001; CERN-LPCC-2016-001.-
2019-09-09 - 9 p.
- Published in : Phys. Dark Univ. 27 (2020) 100365
Fulltext: PDF; Fulltext from Publisher: PDF;
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