搜索结果: 31-45 共查到“理学 mixing”相关记录372条 . 查询时间(0.051 秒)
Can nearby resonances enhance D-0-(D)over-bar(0) mixing?
Resonance mixing status the resonance parameters the resonance amplitude meson spectroscopy
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2014/12/22
We study the contributions of resonances to mixing. Both and hybrid states are considered. Assuming reasonable values for the resonance parameters, we find relatively sizeable individual contributions...
Short-distance analysis of D-0-D-0 mixing
The standard model the quality of the neutral meson amplitude spiral
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2014/12/20
We study the Standard Model short-distance prediction for the mass and lifetime differences between the two neutral D meson mass eigenstates. We find that, despite αs/4π suppression, next-to-leading o...
Quark and lepton masses and mixing in the landscape
Lepton yukawa coupling matrix element
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2014/12/20
Even if quark and lepton masses are not uniquely predicted by the fundamental theory, as may be the case in the string theory landscape, nevertheless their pattern may reveal features of the underlyin...
Charm Mixing - Theory
The standard model physics quark level the parameter space
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2014/12/20
We discuss Standard Model (SM) and New Physics (NP) descriptions of D0 mixing. The SM part of the discussion addresses both quark level and hadron level contributions. The NP part describes our recent...
New physics contributions to the lifetime difference in D-0-(D)over-bar(0) mixing
New physics model light quark mass
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2014/12/20
We present the first general analysis of New Physics contributions to the D0-D̅ 0 lifetime difference (equivalently ΔΓD). We argue that New Physics (NP) contributions to |ΔC|=1 processes can domi...
Implications of D-0-(D)over-bar(0) mixing for new physics
The new physics Hamiltonian physical model fermions and bosons
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2014/12/20
We provide a comprehensive, up-to-date analysis of possible new physics contributions to the mass difference ΔMD in D0-D̅ 0 mixing. We consider the most general low-energy effective Hamiltonian a...
Charm Mixing and CP-violations - Theory
Data mixing phase mixing theory the model
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2014/12/19
I begin by commenting on the most recent experimental compilation of D^0 mixing data, emphasizing the so-called 'strong phase' issue. This is followed by a review of the theory underlying charm mixing...
Relating D-0-D-0 mixing and D-0 -> l(+)l(-) with new physics
The physical model coupling fixed mixing the standard model the physical contribution
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2014/12/19
We point out how, in certain models of new physics, the same combination of couplings occurs in the amplitudes for both D0-D̅ 0 mixing and the rare decays D0→ℓ+ℓ-. If the new physics ...
Sensitivity of aerosol radiative effects to different mixing assumptions in the AEROPT 1.0 submodel of the EMAC atmospheric-chemistry–climate model
aerosol radiative effects different mixing assumptions
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2014/12/19
The modelling of aerosol radiative forcing is a major cause of uncertainty in the assessment of global and regional atmospheric energy budgets and climate change.
An improved parameterization of tidal mixing for ocean models
ocean models improved parameterization
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2014/12/18
Two modifications to an existing scheme of tidal
mixing are implemented in the coarse resolution ocean component of a global climate model. First, the vertical distribution of energy flux...
A Lagrangian model of air-mass photochemistry and mixing using a trajectory ensemble: the Cambridge Tropospheric Trajectory model of Chemistry And Transport (CiTTyCAT) version 4.2
air-mass photochemistry trajectory ensemble
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2014/12/11
A Lagrangian model of photochemistry and mixing is described (CiTTyCAT, stemming from the Cambridge
Tropospheric Trajectory model of Chemistry And Transport), which is suitable for transport and chem...
MADE-in: a new aerosol microphysics submodel for global simulation of insoluble particles and their mixing state
Black carbon Mineral dust Aerosol The atmosphere Dust particles Solidification grain Liquid coating
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2014/12/9
Black carbon (BC) and mineral dust are among the most abundant insoluble aerosol components in the atmosphere. When released, most BC and dust particles are externally mixed with other aerosol species...
Mixing in star-forming clouds explains why sibling stars look alike（图）
sibling star-forming clouds
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2014/9/12
The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists at the University of Ca...
Why sibling stars look alike: Early, fast mixing in star-birth clouds（图）
star-birth clouds sibling stars look alike
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2014/9/12
Stars are made mostly of hydrogen and helium, but they also contain trace amounts of other elements, such as carbon, oxygen, iron, and even more exotic substances. By carefully measuring the wavelengt...
Wave-induced transport and vertical mixing of pelagic eggs and larvae
Wave-induced transport vertical mixing pelagic eggs and larvae
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2014/7/10
The transport of pelagic plankton by wind-driven ocean currents and surface gravity waves is investigated for the example of Northeast Arctic cod eggs and larvae on the coast of northern Norway. Previ...