Results 51 to 60 of about 691 (101)

New Q-ball Solutions in Gauge-Mediation, Affleck-Dine Baryogenesis and Gravitino Dark Matter

, 2012
Affleck-Dine (AD) baryogenesis along a d=6 flat direction in gauge-mediated supersymmetry-breaking (GMSB) models can produce unstable Q-balls which naturally have field strength similar to the messenger scale. In this case a new kind of Q-ball is formed,
A. Kusenko, E. Sedelnikov, E. Sedelnikov, F. Doddato, F. Doddato, Francesca Doddato, J. McDonald, John McDonald, L. Covi, S. Kasuya, T. Hiramatsu   +10 more
core   +1 more source

A predictive and testable unified theory of fermion masses, mixing and leptogenesis

Journal of High Energy Physics, 2022
We consider a minimal non-supersymmetric SO(10) Grand Unified Theory (GUT) model that can reproduce the observed fermionic masses and mixing parameters of the Standard Model.
Bowen Fu, Stephen F. King, Luca Marsili, Silvia Pascoli, Jessica Turner, Ye-Ling Zhou   +5 more
doaj   +1 more source

Baryon Number Violating Scalar Diquarks at the LHC

, 2012
Baryon number violating (BNV) processes are heavily constrained by experiments searching for nucleon decay and neutron-antineutron oscillations. If the baryon number violation occurs via the third generation quarks, however, we may be able to avoid the ...
A. D. Sakharov, Iason Baldes, Nicole F. Bell, Raymond R. Volkas   +3 more
core   +1 more source

Status of Electroweak Phase Transition and Baryogenesis [PDF]

, 2000
I review recent progress on the electroweak phase transition and baryogenesis, focusing on the minimal supersymmetric standard model as the source of new physics.Comment: 10 pp, 6 figures; plenary talk given at 6th Workshop on High Energy Physics ...
A G Cohen, B Carlos de, D Bodeker, E Witten, G Dvali, I Affleck, J Garcia-Bellido, J M Cline, J M Cline, J M Cline, J M Cline, J M Cline, J M Moreno, J R Espinosa, JM Cline, K Kajantie, K Kajantie, L M Krauss, L Randall, M Aoki, M Carena, M Fukugita, M Joyce, M Laine, M Laine, M Losada, M. Carena, P Arnold, P Arnold, P Huet, S J Huber, U A Yajnik, W Buchmuller, Y Aoki   +33 more
core   +2 more sources

Affleck-Dine leptogenesis via multiscalar evolution in a supersymmetric seesaw model

, 2007
A leptogenesis scenario in a supersymmetric standard model extended with introducing right-handed neutrinos is reconsidered. Lepton asymmetry is produced in the condensate of a right-handed sneutrino via the Affleck-Dine mechanism.
Anisimov A, Enqvist K, Gell-Mann M, Kawasaki M Sekiguchi T, Masato Senami, Tsutomu Takayama, Yanagida T Sawada O Sugamoto A   +6 more
core   +1 more source

Finite Number Density Corrections to Leptogenesis [PDF]

, 2010
We derive and solve kinetic equations for leptogenesis within the Closed Time Path (CTP) formalism. It is particularly emphasised how the procedure of real intermediate state subtraction familiar from the Boltzmann approach is realised within the CTP ...
Abada, Anisimov, Bakshi, Basboll, Björn Garbrecht, Buchmüller, Buchmüller, Calzetta, Cirigliano, Covi, Davidson, De Simone, Denner, Endoh, Flanz, Flanz, Fukugita, Garbrecht, Garny, Garny, Garny, Giudice, Hahn-Woernle, Keldysh, Kolb, Kolb, Martin Beneke, Matti Herranen, Nanopoulos, Nardi, Pedro Schwaller, Pilaftsis, Pilaftsis, Pilaftsis, Prokopec, Prokopec, Sakharov, Schwinger   +37 more
core   +2 more sources

Common origin of dark matter and leptogenesis in U(1) B−L

Journal of High Energy Physics
In this paper, we investigate the common parameter space of dark matter and leptogenesis in the U(1) B−L symmetry. This model involves a complex scalar ϕ, sterile neutrinos N, and Majorana dark matter χ, where only dark matter χ is charged under the Z 2 ...
Ang Liu, Feng-Lan Shao, Zhi-Long Han, Yi Jin, Honglei Li   +4 more
doaj   +1 more source

High-scale baryogenesis with testable neutron-antineutron oscillation and dark matter

, 2017
We propose a new scenario for predicting a one-loop neutron-antineutron oscillation at a testable level, meanwhile, realizing a thermal or inflationary baryogenesis at a very high scale. Besides the standard model content, this scenario involves two real
Gu, Pei-Hong, Sarkar, Utpal
core   +1 more source

Magnetic helicity, magnetic monopoles, and Higgs winding

Journal of High Energy Physics
Changes in magnetic helicity are often discussed across a variety of fields, from condensed matter physics to early universe cosmology. It is frequently stated that the helicity change is given by the integral of the gauge field strength tensor and its ...
Hajime Fukuda, Yuta Hamada, Kohei Kamada, Kyohei Mukaida, Fumio Uchida   +4 more
doaj   +1 more source

Forbidden neutrinogenesis

Journal of High Energy Physics
The origin of neutrino masses can be simply attributed to a new scalar beyond the Standard Model. We demonstrate that leptogenesis can explain the baryon asymmetry of the universe already in such a minimal framework.
Shinya Kanemura, Shao-Ping Li
doaj   +1 more source