Results 31 to 40 of about 91,035 (179)

A Clockwork Theory [PDF]

, 2016
The clockwork is a mechanism for generating light particles with exponentially suppressed interactions in theories which contain no small parameters at the fundamental level.
Giudice, Gian F., McCullough, Matthew
core   +1 more source

g μ − 2 from Vector-like leptons in warped space

Journal of High Energy Physics, 2017
The experimental value of the anomalous magnetic moment of the muon, as well as the LHCb anomalies, point towards new physics coupled non-universally to muons and electrons.
Eugenio Megías, Mariano Quirós, Lindber Salas   +2 more
doaj   +1 more source

Dark bubbles: decorating the wall

Journal of High Energy Physics, 2020
Motivated by the difficulty of constructing de Sitter vacua in string theory, a new approach was proposed in arXiv:1807.01570 and arXiv:1907.04268 , where four dimensional de Sitter space was realized as the effective cosmology, with matter and radiation,
Souvik Banerjee, Ulf Danielsson, Suvendu Giri   +2 more
doaj   +1 more source

Bubble needs strings

Journal of High Energy Physics, 2021
In this paper, we want to emphasize the pivotal role played by strings in the model realizing de Sitter using an expanding bubble, proposed and subsequently developed in [1–3].
Souvik Banerjee, Ulf Danielsson, Suvendu Giri   +2 more
doaj   +1 more source

Phenomenology of Large Extra Dimensions Models at Hadrons Colliders using Monte Carlo Techniques (Spin-2 Graviton)

, 2015
Large Extra Dimensions Models have been proposed to remove the hierarchy problem and give an explanation why the gravity is so much weaker than the other three forces. In this work, we present an analysis of Monte Carlo data events for new physics signatures of spin-2 Graviton in context of ADD model with total dimensions $D=4+ ,$ $ = 1,2,3,4,5,6 ...
Bakhet, Nady, Khlopov, Maxim Yu, Hussein, Tarek   +2 more
openaire   +2 more sources

Kinetic mixing, dark photons and extra dimensions. Part II: fermionic dark matter

Journal of High Energy Physics, 2018
Extra dimensions can be very useful tools when constructing new physics models. Previously, we began investigating toy models for the 5-D analog of the kinetic mixing/vector portal scenario where the interactions of bulk dark matter with the brane ...
Thomas G. Rizzo
doaj   +1 more source

Theories with Extra Dimensions

, 2004
We review some aspects of theories with compact extra dimensions. We consider the motivation and the theoretical basis of Large, Universal and Warped Extra Dimensions.
Burdman, Gustavo
core   +2 more sources

Leptons and photons at the LHC: cascades through spinless adjoints [PDF]

, 2007
We study the hadron collider phenomenology of (1,0) Kaluza-Klein modes along two universal extra dimensions compactified on the chiral square. Cascade decays of spinless adjoints proceed through tree-level 3-body decays involving leptons as well as one ...
A. Abulencia ., A. Pukhov, A. Pukhov ., A.T. Azatov, B.A. Dobrescu, B.A. Dobrescu, B.A. Dobrescu, Bogdan A Dobrescu, C. Dennis, CDF collaboration, D. Hooper, D0 collaboration, E. Ponton, F. Maltoni, G. Burdman, G. Burdman, H.-C. Cheng, J. Pumplin ., J.M. Smillie, Kyoungchul Kong, Our, Rakhi Mahbubani   +21 more
core   +2 more sources

A small weak scale from a small cosmological constant

Journal of High Energy Physics, 2017
We propose a framework in which Weinberg’s anthropic explanation of the cosmological constant problem also solves the hierarchy problem. The weak scale is selected by chiral dynamics that controls the stabilization of an extra dimension.
Asimina Arvanitaki, Savas Dimopoulos, Victor Gorbenko, Junwu Huang, Ken Van Tilburg   +4 more
doaj   +1 more source

Inflation Dynamics and Reheating [PDF]

, 2005
We review the theory of inflation with single and multiple fields paying particular attention to the dynamics of adiabatic and entropy/isocurvature perturbations which provide the primary means of testing inflationary models.
Abbott, L. F., Arkani-Hamed, N., Bartolo, N., Bartolo, N., Blanco-Pillado, J. J., Brandenberger, R., Bruce A. Bassett, Burgess, C. P., Calcagni, G., Calcagni, G., Cartier, C., Contaldi, C. R., David Wands, Dimopoulos, K., Dolgov, A. D., Dolgov, A. D., Doran, M., Dvali, G., Dvali, G., Enqvist, K., Enqvist, K., Ferrer, F., Giudice, G. F., Giudice, G. F., Gordon, C., Hawking, S. W., Ivanov, P., Jedamzik, K., Kachru, S., Kadota, K., Kadota, K., Kallosh, R., Kanazawa, T., Kanno, S., Khlebnikov, S. Y., Khlebnikov, S. Y., Khlebnikov, S. Y., Khoury, J., Khoury, J., Kofman, L., Kolb, E. W., Koyama, K., Leach, A., Liddle, A. R., Liguori, M., Linde, A. D., Linde, A. D., Linde, A. D., Linde, A. D., Lukash, V. N., Lyth, D. H., Lyth, D. H., Lyth, D. H., Lyth, D. H., Lyth, D. H., Maartens, R., Mac Lachlan, N. W., Maldacena, J., Malik, K. A., Matarrese, S., Matarrese, S., Moroi, T., Mukhanov, V. F., Mukhanov, V. F., Mukhanov, V. F., Nilles, H. P., Nilles, H. P., Panda, S., Parry, M., Peacock, J. A., Peloso, M., Podolsky, D. I., Postma, M., Quevedo, F., Randall, L., Randall, L., Sato, K., Sato, K., Schwarz, G., Seery, D., Seery, D., Shinji Tsujikawa, Starobinsky, A. A., Starobinsky, A. A., Starobinsky, A. A., Starobinsky, A. A., Tegmark, M., Tegmark, M., Tkachev, I., Tsujikawa, S., Tsujikawa, S., Tsujikawa, S.   +91 more
core   +2 more sources