Results 21 to 30 of about 21,756 (168)

Stringy Effects During Inflation and Reheating [PDF]

, 2005
We consider inflationary cosmology in the context of string compactifications with multiple throats. In scenarios where the warping differs significantly between throats, string and Kaluza-Klein physics can generate potentially observable corrections to ...
A. Vilenkin, Andrew R. Frey, Anupam Mazumdar, B. J. Carr, E. Witten, E. W. Kolb, Robert C. Myers   +6 more
core   +3 more sources

Luminous signals of inelastic dark matter in large detectors

Journal of High Energy Physics, 2019
We study luminous dark matter signals in models with inelastic scattering. Dark matter χ 1 that scatters inelastically off elements in the Earth is kicked into an excited state χ 2 that can subsequently decay into a monoenergetic photon inside a detector.
Joshua Eby, Patrick J. Fox, Roni Harnik, Graham D. Kribs   +3 more
doaj   +1 more source

An inflationary probe of cosmic Higgs switching

Journal of High Energy Physics, 2020
A scalar Higgs field can be repeatedly switched on and off when it couples to a classically oscillating scalar modulus field. The modulus flips the Higgs mass term between stable and tachyonic values.
JiJi Fan, Matthew Reece, Yi Wang
doaj   +1 more source

Spin-0± portal induced Dark Matter

Journal of High Energy Physics, 2018
Standard model (SM) spin-zero singlets are constrained through their di-Bosonic decay channels via an effective coupling induced by a vector-like quark (VLQ) loop at the LHC for s=13 $$ \sqrt{s}=13 $$ TeV.
Sukanta Dutta, Ashok Goyal, Lalit Kumar Saini   +2 more
doaj   +1 more source

An update on the two singlet dark matter model

Journal of High Energy Physics, 2021
We revisit the two real singlet extension of the Standard Model with a Z 2 × Z 2 ′ $$ {Z}_2\times {Z}_2^{\prime } $$ symmetry. One of the singlet scalars S 2, by virtue of an unbroken Z 2 ′ $$ {Z}_2^{\prime } $$ symmetry, plays the role of a stable dark ...
Tanushree Basak, Baradhwaj Coleppa, Kousik Loho   +2 more
doaj   +1 more source

Dark Matter from Minimal Flavor Violation

, 2011
We consider theories of flavored dark matter, in which the dark matter particle is part of a multiplet transforming nontrivially under the flavor group of the Standard Model in a manner consistent with the principle of Minimal Flavor Violation (MFV). MFV
A Adulpravitchai, A Belyaev, A Falkowski, A Katz, A Lenz, AI Vainshtein, AJ Buras, AJ Buras, AL Kagan, AV Manohar, B Batell, B Batell, B Bellazzini, B Grinstein, Brian Batell, C-R Chen, CP Burgess, CW Bauer, D Meloni, DE Soper, DL Rainwater, E Gross, E Komatsu, E Ma, E Nikolidakis, F Chen, F D’Eramo, G Bertone, G D’Ambrosio, G Jungman, GD Kribs, GD Kribs, J Alwall, J Gallicchio, J Goodman, J Goodman, J March-Russell, J McDonald, J-H Kim, JM Arnold, JM Arnold, JM Butterworth, JM Campbell, JM Campbell, Josef Pradler, JR Ellis, K Agashe, LJ Hall, M Bahr, M Beltrán, M Blennow, M Cacciari, M Cacciari, M Carena, M Cirelli, M Hirsch, M Lisanti, M Trott, MA Shifman, Michael Spannowsky, MS Boucenna, N Haba, N Kauer, P Sorensen, RS Chivukula, S Chang, S Chang, S Yellin, T Aaltonen, T Aaltonen, T Hambye, T Plehn, T Sjöstrand, TR Slatyer, V Cirigliano, V Silveira, VM Abazov, VM Abazov, Y Bai, Y Grossman, Y Kajiyama, Z Ligeti, Z Ligeti   +82 more
core   +1 more source

Cosmological constraints on deviations from Lorentz invariance in gravity and dark matter [PDF]

, 2014
We consider a scenario where local Lorentz invariance is violated by the existence of a preferred time direction at every space-time point. This scenario can arise in the context of quantum gravity and its description at low energies contains a unit time-
Audren, B., Blas, D., Ivanov, M. M., Lesgourgues, J., Sibiryakov, S.   +4 more
core   +3 more sources

Detector-size upper bounds on dark hadron lifetime from cosmology

Journal of High Energy Physics, 2019
We show that in a confining hidden valley model where the lightest hidden particles are dark hadrons that have mass splittings larger than O 0.1 $$ \mathcal{O}(0.1) $$ GeV, if the lightest dark hadron is either stable or decays into Standard Model (SM ...
Lingfeng Li, Yuhsin Tsai
doaj   +1 more source

Model-independent constraints with extended dark matter EFT

Journal of High Energy Physics, 2020
We systematically explore the phenomenology of the recently proposed extended dark matter effective field theory (eDMeft), which allows for a consistent effective description of DM scenarios across different energy scales.
Tommi Alanne, Giorgio Arcadi, Florian Goertz, Valentin Tenorth, Stefan Vogl   +4 more
doaj   +1 more source

The unexpected resurgence of Weyl geometry in late 20-th century physics

, 2017
Weyl's original scale geometry of 1918 ("purely infinitesimal geometry") was withdrawn by its author from physical theorizing in the early 1920s. It had a comeback in the last third of the 20th century in different contexts: scalar tensor theories of ...
A Codello, A Trautman, A Trautman, A Zee, A Zee, A Zee, A. Einstein, A. Trautman, Alexander Bregman, ALI SHOJAI, Ali Shojai, ALI SHOJAI, Allan Franklin, Arianna Borrelli, B. Rievers, Bertram Kostant, C N Yang, C Romero, C. Brans, C. N. Yang, C. ROMERO, Carl Brans, Carl H. Brans, Carlos Castro, Carlos Castro, Carlos Castro, Chen‐Ning Yang, Claus Lämmerzahl, Curtis G Callan, D. J. Simms, David Bohm, David Bohm, David Kaiser, Dennis Lehmkuhl, Detlev Dürr, E. Santamato, E. Santamato, E. Santamato, E. Scholz, Enrico Santamato, Enrico Santamato, Erhard Scholz, Erhard Scholz, F. Dahia, F. Englert, F.W. Hehl, Fang-Fang Yuan, FATIMAH SHOJAI, FATIMAH SHOJAI, FATIMAH SHOJAI, FATIMAH SHOJAI, Francesco De Martini, Francesco De Martini, Francesco De Martini, Friedrich W Hehl, Friedrich W. Hehl, Friedrich W. Hehl, Friedrich W. Hehl, Gerald B. Folland, H P de Oliveira, H Weyl, H.T. Nieh, Helge Kragh, Helge S. Kragh, Herbert Pfister, Hermann Weyl, Hermann Weyl, Hitoshi Nishino, Hrvoje Nikolić, Hubert Goenner, Hung Cheng, J Audretsch, J M Salim, J. A. Schouten, J. Bekenstein, J. M. Charap, Jayant V. Narlikar, Jean-Marie Souriau, John Miritzis, JOHN MIRITZIS, John R. Ray, Jürgen Audretsch, Jürgen Audretsch, Jȩdrzej Śniatycki, K. Hayashi, Koray Karaca, Krzysztof A. Meissner, Lee Smolin, M-A Tonnelat, M. Flato, M. Kasuya, M. L. Pucheu, M. Novello, M. Novello, M. NOVELLO, M. Omote, M. Omote, Marek Pawlowski, Marek Pawłowski, Mark Israelit, Mark Israelit, Mark Israelit, Mark Israelit, Mark Israelit, Martina R. Schneider, Mikhail Shaposhnikov, Mikhail Shaposhnikov, Milutin Blagojević, Moshé Flato, N M J Woodhouse, Nathan Rosen, P. A. M. Dirac, P. A. M. Dirac, P. Bouvier, Peter Gilkey, Philip D. Mannheim, Philip D. Mannheim, Philip D. Mannheim, Philip D. Mannheim, R Utiyama, R Utiyama, R Utiyama, R Utiyama, R. H. Dicke, R. Penrose, Robert Alan Coleman, Robert Foot, S Deser, S Weinberg, Sidney Coleman, Spiros Cotsakis, Stephen L. Adler, T. Padmanabhan, T. W. B. Kibble, Timothy Clifton, V Perlick, V Vizgin, V. Canuto, V. M. Canuto, Volker Perlick, W R Wood, W. Drechsler, W. Drechsler, W. R. Wood, Wayne C. Myrvold, Wojciech Kopczyński, Wolfgang Drechsler, Yu.N. Obukhov, YUE-LIANG WU   +148 more
core   +1 more source