Results 21 to 30 of about 564,502 (238)

Physical mechanisms of mixing in stellar interiors [PDF]

Symposium - International Astronomical Union, 1984
The different mechanisms by which mixing can take place in stellar interiors are considered : the classical Rayleigh-Benard instability with penetrative convection and over-shooting, semi-convection, gravitationnal and radiative settling, turbulent mixing.
openaire   +2 more sources

An analysis of B_{d,s} mixing angles in presence of New Physics and an update of Bs -> K0* anti-K0*

, 2011
We discuss a simple approach to measure the weak mixing angles phi_s and phi_d of the Bs and Bd systems in the presence of New Physics. We present a new expression that allows one to measure directly the New Physics mixing angles if New Physics ...
Javier Virto, Joaquim Matias, S. Burdin, Sébastien Descotes-Genon   +3 more
core   +1 more source

Experimental Status of $B$ Physics

, 2006
A short summary is given of the current status of B physics. Reasons for physics beyond the Standard Model are discussed. Constraints on New Physics are given using measurements of B mixing, Bs mixing, and CP violation, along with |Vub. Future goals, and
Stone, Sheldon
core   +3 more sources

Possible Effects of $D^0-\bar{D}^0$ Mixing in Weak $B$ Decays

, 1995
$D^0-\bar{D}^0$ mixing at a detectable level requires the presence of new physics and may lead to some observable effects in weak decays of $B$ mesons.
Babu, Blaylock, Botella, Branco, Browder, Burdman, Dunietz, Dunietz, Fritzsch, Gronau, Hamzaoui, Hewett, Hewett, Hou, Inami, Inami, Kaplan, Kaplan, Liu, Montanet, Nir, Nir, Sakai, Stone, Wolfenstein, Wu, Xing, Xing, Xing, Xing, Yaouanc, Zhi-zhong Xing   +31 more
core   +1 more source

Global Analysis of Neutrino Data

, 2004
In this talk I review the present status of neutrino masses and mixing and some of their implications for particle physics phenomenology. I first discuss the minimum extension of the Standard Model of particle physics required to accommodate neutrino ...
Bahcall J N, Barenboim G, Conrad J, Fiorini E, Gonzalez-Garcia M C, M C Gonzalez-Garcia, Maltoni M, McDonald A, Petcov S, Suzuki A, Suzuki Y, Tegmark M, Weinheimer C   +12 more
core   +1 more source

Searching for New Physics in $D^0\rightarrow \mu^+\mu^-,\; e^+e^-, \;\mu^{\pm}e^{\mp}$ at BES and/or Super Charm-Tau Factory

, 2014
In contrast with $B^0-\bar B^0$, $B_s-\bar B_s$ mixing where the standard model (SM) contributions overwhelm that of new physics beyond standard model (BSM), a measured relatively large $D^0-\bar D^0$ mixing where the SM contribution is negligible ...
Jia, Lian-Bao, Ke, Hong-Wei, Li, Xue-Qian, Zhao, Ming-Gang   +3 more
core   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

FEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source

Scratch + CNC: Mixing Physical and Digital Worlds

Anais do III Workshop on Advanced Virtual Environments and Education (WAVE 2020), 2021
Knowledge retention occurs most effectively when there is experimentation and there is an association between understanding what was learned conceptually and a real experience. We propose the development of an extension for Scratch 3.0 allowing the interaction with a CNC (Computer Numeric Control) machine.
Dirceu Maraschin, Anderson Eugênio Souza Gutierres, Tiago Thompsen Primo   +2 more
openaire   +2 more sources

Model-independent analysis of $\bbox{B}$-$\bbox{\bar B}$ mixing and $\bbox{CP}$ violation in $\bbox{B}$ decays

, 1995
We present a framework to analyze effects of new physics beyond the standard model on $B$-$\bar B$ mixing and $CP$ violation in $B$ decays in a model-independent manner.
F. Abe, J. L. Rosner, J. M. Soares, L. Wolfenstein, M. Gronau, M. Gronau, M. Gronau, M. Kobayashi, Minoru Tanaka, N.G. Deshpande, N.G. Deshpande, Noriaki Kitazawa, S. Abachi, S. Stone, T. E. Browder, T. Inami, T. Inami, Toru Goto, W. J. Marciano, Yasuhiro Okada   +19 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source