Results 91 to 100 of about 172,277 (268)

Lepton asymmetry and the cosmic QCD transition

, 2009
We study the influence of lepton asymmetry on the evolution of the early Universe. The lepton asymmetry $l$ is poorly constrained by observations and might be orders of magnitude larger than the baryon asymmetry $b$, $|l|/b \leq 2\times 10^8$.
, C. Schmidt, Dominik J Schwarz, E.R. Siegel, L.A. Popa, M.A. Stephanov, M.J. Fromerth, Maik Stuke, O. Philipsen, RBC-Bielefeld collaboration, V. Simha, W.H. Press ., WMAP collaboration, Z. Fodor   +13 more
core   +1 more source

Gravireggeons in Extra Dimensions and Interaction of Ultra-high Energy Cosmic Neutrinos with Nucleons [PDF]

, 2003
We present the results on non-perturbative quantum gravity effects related to extra dimensions which can be comparable, in some cases, with the SM contributions, e.g. in lepton-lepton or lepton-nucleon scattering.
A. V. Kisselev, Ahn, Alekhin, Alvarez-Muñiz, Amati, Anchordoqui, Antoniadis, Arkani-Hamed, Bahcall, Bahcall, Berezinsky, Bhattacharjee, Capelle, Chaichian, Collaboration), Diaz, Emparan, Engel, Fargion, Feng, Gandhi, Giudice, Giudice, Greisen, Han, Hill, Jain, Kabat, Kalashev, Kisselev, Kowalski, Mannheim, Mannheim, Mohapatra, Morris, Nussinov, Petrov, Petrov, Protheroe, Ringwald, Sigl, Sigl, Stecker, Stecker, Tyler, Uehara, V. A. Petrov, Veneziano, Waxman, Yoshida, Yoshida   +50 more
core   +2 more sources

Assessment of Microbolometer Infrared Cameras for Thermoelastic Stress Analysis

Strain, Volume 61, Issue 1, February 2025.
ABSTRACT A means of simulating the performance of infrared (IR) cameras is described, with the purpose of assessing the suitability of the IR camera for thermoelastic stress analysis (TSA). The approach is demonstrated on two IR cameras containing different sensors: a standard microbolometer and a very low cost microbolometer based thermal core.
I. Jiménez‐Fortunato, C. Devivier, J. M. Dulieu‐Barton   +2 more
wiley   +1 more source

High-scale leptogenesis with three-loop neutrino mass generation and dark matter

, 2016
We demonstrate a common origin for high-scale leptogenesis and three-loop neutrino mass generation. Specifically we extend the standard model by two real singlet scalars, two singly charged scalars carrying different lepton numbers and two or more ...
Gu, Pei-Hong
core   +1 more source

On the Impact of Flavour Oscillations in Leptogenesis [PDF]

, 2006
When lepton flavour effects in thermal leptogenesis are active, they introduce important differences with respect to the case in which they are neglected, the so-called one-flavour approximation. We investigate analytically and numerically the transition
De Simone, Andrea, Riotto, Antonio
core   +3 more sources

A Brief, Biased View of Neutron Star Cooling

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT This is a concise and non‐technical review of topics related to neutron star (NS) cooling, for both young NSs and NSs in low‐mass x‐ray binaries. Neutrino emission from the NS core drives cooling rates, via different processes including Urca processes and pair breaking and formation at the neutron superfluid critical temperature.
Craig Heinke
wiley   +1 more source

Drag force and heavy quark potential in a rotating background

Journal of High Energy Physics
We explored the gravity dual of a rotating quark-gluon plasma by transforming the boundary coordinates of the large black hole limit of Schwarchild-AdS5 metric.
Jun-Xia Chen, De-Fu Hou, Hai-Cang Ren
doaj   +1 more source

Test of lepton flavour violation at LHC

, 2006
We study lepton flavour violating decays of neutralinos and sleptons within the Minimal Supersymmetric Standard Model, assuming two and three generation mixings in the slepton sector.
A. Bartl, Agashe, Allanach, Arkani-Hamed, Bachacou, Chung, Collaboration, Collaboration, Collaboration, Dedes, Donoghue, Hinchliffe, Hisano, Hisano, K. Hidaka, K. Hohenwarter-Sodek, Krasnikov, Maltoni, T. Kernreiter, W. Majerotto, W. Porod   +20 more
core   +1 more source

Lepton Numbers in the framework of Neutrino Mixing [PDF]

, 2001
In this short review we discuss the notion of lepton numbers. The strong evidence in favor of neutrino oscillations obtained recently in the Super-Kamiokande atmospheric neutrino experiment and in solar neutrino experiments imply that the law of ...
Abdurashitov J. N., Arkani-Hamed N., Bilenky S. M., Bilenky S. M., C. GIUNTI, Giunti C., Giunti C., Giunti C., Giunti C., Groom D. E., Klapdor-Kleingrothaus H. V., Naples D., Petcov S. T., Pontecorvo B., S. M. BILENKY   +14 more
core   +2 more sources

Production of Dileptons in Ultraperipheral Heavy‐Ion Collisions With Two‐Photon Processes

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
We study the photoproduction process of dileptons in heavy‐ion collision at relativistic heavy‐ion collider (RHIC) and large hadron collider (LHC) energies. The equivalent photon approximation, which equates the electromagnetic field of high‐energy charged particles to the photon flux, is used to calculate the processes of dilepton production.
Gong-Ming Yu, Xinyu Li, Xinghang Zhang, Zhongxia Zhao, Haitao Yang, Hasan El moumni   +5 more
wiley   +1 more source