scholarly journals Radiative Capture Reactions in Lattice Effective Field Theory

2013 ◽  
Vol 111 (3) ◽  
Author(s):  
Gautam Rupak ◽  
Dean Lee
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Radiative Capture ◽  
Effective Field

scholarly journals Effective field theory calculation of nd radiative capture at thermal energies

2006 ◽  
Vol 643 (5) ◽  
pp. 263-267 ◽  
Author(s):  
H. Sadeghi ◽  
S. Bayegan ◽  
Harald W. Grießhammer
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Radiative Capture ◽  
Effective Field ◽  
Theory Calculation

d−α Radiative capture process by effective field theory

New Astronomy ◽  
2020 ◽  
Vol 80 ◽  
pp. 101424
Author(s):  
S. Nahidinezhad ◽  
H. Sadeghi ◽  
H. Khalili
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Radiative Capture ◽  
Effective Field ◽  
Capture Process

Radiative reactions in halo effective field theory

2016 ◽  
Vol 25 (05) ◽  
pp. 1641004 ◽  
Author(s):  
Gautam Rupak
Keyword(s):  
Field Theory ◽  
Cross Section ◽  
Effective Field Theory ◽  
Halo Nucleus ◽  
Radiative Capture ◽  
Effective Field ◽  
Valence Neutron ◽  
Halo Nuclei ◽  
Radiative Reaction ◽  
Model Independent

In this article we review the recent progress in radiative reaction calculations in halo effective field theory. We look at radiative capture and breakup processes that involve a halo nucleus with a single valence neutron or proton. Looking at [Formula: see text] [Formula: see text],[Formula: see text]n[Formula: see text] and related reactions, the dominant source of theoretical uncertainty in [Formula: see text]- and [Formula: see text]-wave halo nuclei reaction calculations is quantified in a model-independent framework. The analysis for neutron halos is extended to proton halo systems. The effective field theory results quantify which observable parameters of the strong interaction at low energy need to be determined more precisely for accurate cross-section calculations.

Effective Field Theory in Particle Physics and Cosmology

2020 ◽  
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Particle Physics ◽  
Large Scale ◽  
Effective Field ◽  
Effective Theory ◽  
Soft Collinear Effective Theory ◽  
Multiple Length Scales ◽  
Cosmological Observations ◽  
Standard Models

Effective field theory (EFT) is a general method for describing quantum systems with multiple-length scales in a tractable fashion. It allows us to perform precise calculations in established models (such as the standard models of particle physics and cosmology), as well as to concisely parametrize possible effects from physics beyond the standard models. EFTs have become key tools in the theoretical analysis of particle physics experiments and cosmological observations, despite being absent from many textbooks. This volume aims to provide a comprehensive introduction to many of the EFTs in use today, and covers topics that include large-scale structure, WIMPs, dark matter, heavy quark effective theory, flavour physics, soft-collinear effective theory, and more.

The Fujita-Miyazawa force in the light of effective field theory

2008 ◽  
Author(s):  
Ulf-G. Meiβner ◽  
Hideyuki Sakai ◽  
Kimiko Sekiguchi ◽  
Benjamin F. Gibson
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Effective Field

scholarly journals Towards Feynman rules for conformal blocks

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Sarah Hoback ◽  
Sarthak Parikh
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Hypergeometric Functions ◽  
Power Series Expansion ◽  
Effective Field ◽  
Conformal Block ◽  
Tree Level ◽  
Conformal Blocks ◽  
Simple Set ◽  
Feynman Rules

Abstract We conjecture a simple set of “Feynman rules” for constructing n-point global conformal blocks in any channel in d spacetime dimensions, for external and exchanged scalar operators for arbitrary n and d. The vertex factors are given in terms of Lauricella hypergeometric functions of one, two or three variables, and the Feynman rules furnish an explicit power-series expansion in powers of cross-ratios. These rules are conjectured based on previously known results in the literature, which include four-, five- and six-point examples as well as the n-point comb channel blocks. We prove these rules for all previously known cases, as well as two new ones: the seven-point block in a new topology, and all even-point blocks in the “OPE channel.” The proof relies on holographic methods, notably the Feynman rules for Mellin amplitudes of tree-level AdS diagrams in a scalar effective field theory, and is easily applicable to any particular choice of a conformal block beyond those considered in this paper.

Sign in / Sign up

Export Citation Format

Share Document