Results 61 to 70 of about 4,842 (140)

Resonant Landau-Zener conversion in multi-axion systems

Journal of High Energy Physics
Multiple axions may emerge in the low-energy effective theory of Nature. Generically, the potentials describing these axion fields are non-diagonal, leading to mass mixing between axion states which can be temperature-dependent due to QCD instanton ...
David I. Dunsky, Claudio Andrea Manzari, Pablo Quílez, Maria Ramos, Philip Sørensen   +4 more
doaj   +1 more source

Tree-level unitarity in Higgs inflation in the metric and the Palatini formulation

Journal of High Energy Physics, 2022
We calculate the tree-level amplitudes for electrically neutral 2 → 2 scattering for the Standard Model Higgs doublet non-minimally coupled to the Ricci scalar. We consider both the metric and the Palatini formulation of gravity. We find the partial wave
Asuka Ito, Wafaa Khater, Syksy Räsänen
doaj   +1 more source

Complementarity of the CERN Large Hadron Collider and the $e^+e^-$ International Linear Collider

, 2008
The next-generation high-energy facilities, the CERN Large Hadron Collider (LHC) and the prospective $e^+e^-$ International Linear Collider (ILC), are expected to unravel new structures of matter and forces from the electroweak scale to the TeV scale. In
A. Alves, A. Bartl, A. Datta, A. Djouadi, A. Freitas, A. Freitas, A. Freitas, A. Freitas, A. Freitas, A.J. Barr, B.K. Gjelsten, B.K. Gjelsten, C. Amsler, C. Athanasiou, C. Giunti, C.P. Buszello, D.J. Miller, D.J.H. Chung, E. Accomando, E. Boos, E.A. Baltz, F. Deppisch, G. Weiglein, G.A. Blair, G.A. Moortgat-Pick, G.F. Giudice, G.L. Kane, H. Murayama, H. Pagels, H.U. Martyn, J.A. Aguilar-Saavedra, J.A. Aguilar-Saavedra, J.I. Kamoshita, J.L. Feng, J.L. Feng, J.L. Feng, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Ellis, J.R. Espinosa, J.R. Espinosa, K. Desch, K. Hamaguchi, K. Inoue, K. Inoue, L. Alvarez-Gaume, L.E. Ibanez, L.E. Ibanez, M. Battaglia, M. Bolz, M. Duhrssen, M. Fukugita, M. Misiak, M.M. Muhlleitner, M.M. Nojiri, M.R. Buckley, M.S. Carena, M.S. Carena, M.S. Carena, M.Y. Khlopov, N. Arkani-Hamed, N. Arkani-Hamed, P. Bechtle, P. Bechtle, P. Langacker, R. Barbier, R. Dermisek, R.M. Barnett, S. Heinemeyer, S. Heinemeyer, S. Kraml, S. Schael, S. Y. Choi, S.F. King, S.Y. Choi, S.Y. Choi, S.Y. Choi, S.Y. Choi, S.Y. Choi, S.Y. Choi, S.Y. Choi, S.Y. Choi, T. Becher, U. Amaldi, U. Ellwanger, U. Ellwanger, U. Ellwanger, V. Barger, W. Buchmuller, W. Buchmuller, W. Kilian, W.Y. Keung   +93 more
core   +2 more sources

Savior curvatons and large non-Gaussianity

Journal of High Energy Physics, 2023
Curvatons are light (compared to the Hubble scale during inflation) spectator fields during inflation that potentially contribute to adiabatic curvature perturbations post-inflation.
Jackie Lodman, Qianshu Lu, Lisa Randall
doaj   +1 more source

Moriond Electroweak 2006: Theory Summary [PDF]

, 2006
A concise look at the big picture of particle physics, including the status of the Standard Model, neutrinos, supersymmetry, extra dimensions and cosmology.
Lykken, Joseph D.
core   +1 more source

A New Era in the Quest for Dark Matter

, 2018
There is a growing sense of `crisis' in the dark matter community, due to the absence of evidence for the most popular candidates such as weakly interacting massive particles, axions, and sterile neutrinos, despite the enormous effort that has gone into ...
A Arvanitaki, A Boyarsky, A Caldwell, A Gouvêa de, A Robertson, A Robertson, AG Riess, B Abbott, B Carr, BC Lacki, BJ Kavanagh, BP Abbott, CS Frenk, D Erkal, D Gaggero, D George, D Harvey, D Harvey, D Merritt, Daniel Gilman, DN Spergel, E Bulbul, EP Verlinde, EW Kolb, G Bertone, G Bertone, G Bertone, G Bertone, G Bertone, G Despali, GG Ross, Gianfranco Bertone, H Silverwood, H Wang, J Abdallah, J Billard, J Bovy, J Goodman, J Sakstein, JD Bekenstein, JG Swart de, JH Yoon, JW Moffat, KN Abazajian, L Berezhiani, L Hui, LF Abbott, M Beekveld van, M Beltran, M Dine, M Drewes, M Kaplinghat, M Laine, M Milgrom, M Oguri, M Ricotti, M Sasaki, N Banik, N Dalal, N Du, P Athron, P Gondolo, PAR Ade, PW Graham, R Brito, R Essig, R Essig, RB Metcalf, RG Carlberg, S Bird, S Boran, S Caron, S Clesse, S Knapen, S Mao, S Tulin, S Vegetti, SM Koushiappas, SW Randall, T Brinckmann, T Daylan, TE Jeltema, Tim M. P. Tait, V Iršič, V Iršič, VK Narayanan, X-D Shi, Y Ali-Haïmoud, Y Hochberg, Y Hochberg, Y Kahn, YD Hezaveh   +91 more
core   +2 more sources

Common Origin of Non-zero $\theta_{13}$ and Baryon Asymmetry of the Universe in a TeV scale Seesaw Model with $A_4$ Flavour Symmetry

, 2018
We study the possibility of generating non-zero reactor mixing angle $\theta_{13}$ and baryon asymmetry of the Universe within the framework of an $A_4$ flavour symmetric model.
Borah, Debasish, Das, Mrinal Kumar, Mukherjee, Ananya   +2 more
core   +1 more source

The quality/cosmology tension for a post-inflation QCD axion

Journal of High Energy Physics
It is difficult to construct a post-inflation QCD axion model that solves the axion quality problem (and hence the Strong CP problem) without introducing a cosmological disaster. In a post-inflation axion model, the axion field value is randomized during
Qianshu Lu, Matthew Reece, Zhiquan Sun
doaj   +1 more source

Primordial gravitational waves from excited states

Journal of High Energy Physics, 2022
We show that a scalar excited state with large occupation numbers during inflation leads to an enhancement of tensor modes and a characteristic pattern of order-one oscillations in the associated stochastic gravitational wave background (SGWB) sourced ...
Jacopo Fumagalli, Gonzalo A. Palma, Sébastien Renaux-Petel, Spyros Sypsas, Lukas T. Witkowski, Cristobal Zenteno   +5 more
doaj   +1 more source

Effective SUSY modified after LHC run

, 2012
Some supersymmetric models after the recent LHC reports are discussed. Especially, the light Higgs boson around 125GeV is attempted to be accommodated. An extra Z' from GUTs, and the scalar and pseudoscalar Higgs bosons in supersymmetric extension of the
Kim, Jihn E.
core   +1 more source