Results 61 to 70 of about 8,124,716 (387)

Classical Loschmidt echo in chaotic many-body systems [PDF]

, 2005
General theoretic approach to classical Loschmidt echoes in chaotic systems with many degrees of freedom is developed. For perturbations which affect essentially all degrees of freedom we find a doubly exponential decay with the rate determined by the ...
Prosen, Tomaz, Veble, Gregor
core   +1 more source

General properties of the decay amplitudes for massless particles [PDF]

Nuclear Physics B, 1996
We derive the kinematical constraints which characterize the decay of any massless particle in flat spacetime. We show that in perturbation theory the decay probabilities of photons and Yang-Mills bosons vanish to all orders; the decay probability of the graviton vanishes to one-loop order for graviton loops and to all orders for matter loops.
FIORE, GAETANO, G. MODANESE
openaire   +3 more sources

Existence and stability results of a plate equation with nonlinear damping and source term

Electronic Research Archive, 2022
The main goal of this work is to investigate the following nonlinear plate equation $ u_{tt}+\Delta ^2 u +\alpha(t) g(u_t) = u \vert u\vert ^{\beta}, $ which models suspension bridges.
Mohammad M. Al-Gharabli, Adel M. Al-Mahdi   +1 more
doaj   +1 more source

Fermionic decay of a massive scalar in the early Universe

, 2019
We derive a curved space generalization of a scalar to fermion decay rate with a Yukawa coupling in expanding Friedmann-Robertson-Walker universes. This is done using the full theory of quantum fields in curved spacetime and the added-up transition ...
Lankinen, Juho, Malmi, Joonas, Vilja, Iiro   +2 more
core   +1 more source

Physics Beyond Standard Model in Neutron Beta Decay [PDF]

, 2011
Limits from neutron beta decay on parameters describing physics beyond the Standard Model are presented. New Physics is described by the most general Lorentz invariant effective Hamiltonian involving vector, scalar and tensor operators and Standard Model
Holeczek, Jacek, Ochman, Michal, Stephan, Elzbieta, Zralek, Marek   +3 more
core   +2 more sources

Stability rate of a thermoelastic laminated beam: Case of equal-wave speed and nonequal-wave speed of propagation

AIMS Mathematics, 2021
In this article, we investigate a one-dimensional thermoelastic laminated beam system with viscoelastic dissipation on the effective rotation angle and through heat conduction in the interfacial slip equations.
Soh E. Mukiawa, Tijani A. Apalara, Salim A. Messaoudi2   +2 more
doaj   +1 more source

Lorentz violation in neutron and allowed nuclear beta decay

, 2013
We explore the possibility that the weak interaction violates Lorentz, and in particular rotational, invariance in neutron and allowed nuclear beta decay. A broad class of Lorentz-violating effects is considered, in which the standard propagator of the W-
Noordmans, J. P., Timmermans, R. G. E., Wilschut, H. W.   +2 more
core   +2 more sources

CDK11 inhibition induces cytoplasmic p21WAF1 splice variant by p53 stabilisation and SF3B1 inactivation

Molecular Oncology, EarlyView.
CDK11 inhibition stabilises the tumour suppressor p53 and triggers the production of an alternative p21WAF1 splice variant p21L, through the inactivation of the spliceosomal protein SF3B1. Unlike the canonical p21WAF1 protein, p21L is localised in the cytoplasm and has reduced cell cycle‐blocking activity.
Radovan Krejcir, Lukasz Arcimowicz, Lucia Martinkova, Vaclav Hrabal, Filip Zavadil Kokas, Tomas Henek, Martina Kucerikova, Ondrej Bonczek, Pavlina Zatloukalova, Lenka Hernychova, Philip J. Coates, Borivoj Vojtesek, David P. Lane   +12 more
wiley   +1 more source

How large could the R-parity violating couplings be?

, 2004
We investigate in detail the predictions coming from the d=4 operators for proton decay. We find the most general constraints for the R-parity violating couplings coming from proton decay, taking into account all fermion mixing and in different ...
Allanach B (R-parity Working Group Collaboration), Anchordoqui L Goldberg H Nunez C, Antoniadis I Dimopoulos S, Arkani-Hamed N Dimopoulos S, Arkani-Hamed N Dimopoulos S Giudice G F Romanino A, Arvanitaki A Davis C Graham P W Wacker J G, Aulakh C S Girdhar A, Aurelio Diaz M Fileviez Pérez P, Bajc B Fileviez Pérez P Senjanović G, Bajc B Senjanovic G, Barbier R, Binger M, Cheung K Keung W Y, Chun E J Park S C, Dorsner I Fileviez Pérez P, Dreiner H K, Georgi H, Hewett J L, Jung C K, Kokorelis C, Kors B Nath P, Mahbubani R, Masiero A Profumo S Ullio P, Mukhopadhyaya B SenGupta S, Pavel Fileviez Pérez, Rubbia A   +25 more
core   +1 more source

Enforcing the non-negativity constraint and maximum principles for diffusion with decay on general computational grids [PDF]

, 2010
In this paper, we consider anisotropic diffusion with decay, and the diffusivity coefficient to be a second-order symmetric and positive definite tensor.
Arnold, Barber, Boyd, Braess, Brezzi, Brezzi, Brezzi, Brezzi, Brezzi, Brezzi, Burman, Chadwick, Christie, Ciarlet, Ciarlet, Droniou, Eigestad, Fraenkel, Gilbarg, Herrera, Hughes, Hughes, Hyman, Höhn, Karnadakis, Karátson, Karátson, Keilegavlen, Korotov, Kuzmin, Kuznetsov, Ladyzhenskaya, Le Potier, Lipnikov, Lipnikov, Lipnikov, Liska, Luenberger, Masud, McOwen, Mlacnik, Morton, Nakshatrala, Nakshatrala, Nedelec, Nedelec, Nocedal, Nordbotten, Patankar, Protter, Pucci, Quarteroni, Raviart, Saad, Shashkov, Shewchuk, Strikwerda, Tikhonov, Trudinger, Vanselow, Varga, Varga, Vejchodsky, Yanik, Yanik, Yuan   +65 more
core   +1 more source