Results 21 to 30 of about 86,533 (146)
Wilsonian RG and Redundant Operators in Nonrelativistic Effective Field Theory [PDF]
In a Wilsonian renormalization group (RG) analysis, redundant operators, which may be eliminated by using field redefinitions, emerge naturally. It is therefore important to include them.
Arzt +34 more
core +1 more source
Effective Field Theory and the Nuclear Many Body Problem [PDF]
We review many body calculations of the equation of state of dilute neutron matter in the context of effective field theories of the nucleon-nucleon interaction.Comment: To appear in the proceedings of 4th International Conference On Quarks And Nuclear
Beane +30 more
core +4 more sources
On a Missed Mechanism of Dielectron Production in Nucleon-Nucleon Collisions
We examine a new mechanism of $e^+e^-$ pair production in $NN$ collisions associated with the $NN$-decoupled dibaryon $d^\star_1$(1956) formation in the process $NN \to \gamma^\star d^\star_1$, where $\gamma^\star$ is the virtual photon which converts ...
Khrykin, Anatoliy S.
core +1 more source
Effective Field Theory and Finite Density Systems
This review gives an overview of effective field theory (EFT) as applied at finite density, with a focus on nuclear many-body systems. Uniform systems with short-range interactions illustrate the ingredients and virtues of many-body EFT and then the ...
Abrikosov AA +11 more
core +1 more source
Microscopic Clustering in Light Nuclei
We review recent experimental and theoretical progress in understanding the microscopic details of clustering in light nuclei. We discuss recent experimental results on $\alpha$-conjugate systems, molecular structures in neutron-rich nuclei, and ...
Freer, Martin +4 more
core +1 more source
Chiral dynamics of few-nucleon systems [PDF]
I discuss some recent developments in chiral effective field theory for few-nucleon systems.Comment: 8 pages, 6 figures, invited talk, International Nuclear Physics Conference (INPC 2007), Tokyo, Japan, June 3-8 ...
Bedaque +38 more
core +3 more sources
Perturbative Effective Field Theory at Finite Density [PDF]
An accurate description of nuclear matter starting from free-space nuclear forces has been an elusive goal. The complexity of the system makes approximations inevitable, so the challenge is to find a consistent truncation scheme with controlled errors ...
Bedaque +28 more
core +2 more sources
Understanding the SN2 Versus E2 Competition
We provide an intuitive framework rooted in quantitative molecular orbital theory to understand the factors that govern the competition between the SN2 and E2 reaction pathways. The guiding concepts are: characteristic distortivity, transition state acidity, intrinsic nucleophilicity, and apparent nucleophilicity.
Pascal Vermeeren +3 more
wiley +1 more source
Ab initio calculation of the $np \to d \gamma$ radiative capture process [PDF]
Lattice QCD calculations of two-nucleon systems are used to isolate the short-distance two-body electromagnetic contributions to the radiative capture process $np \to d\gamma$, and the photo-disintegration processes $\gamma^{(\ast)} d \to np$. In nuclear
Assumpta Parreño +7 more
core +2 more sources

