Short distance scale invariance and high-energy processes in field theory

1976 ◽  
Vol 26 (4) ◽  
pp. 430-439
Author(s):  
A. V. Efremov
Keyword(s):  
Field Theory ◽  
Scale Invariance ◽  
Short Distance ◽  
High Energy ◽  
Distance Scale ◽  
Energy Processes

Dark R2 at low energy

2018 ◽  
Vol 33 (34) ◽  
pp. 1845006 ◽  
Author(s):  
Philippe Brax ◽  
Patrick Valageas ◽  
Pierre Vanhove
Keyword(s):  
Field Theory ◽  
Extra Dimensions ◽  
Short Distance ◽  
Tensor Field ◽  
High Energy ◽  
Low Energy ◽  
Breathing Mode ◽  
Dimensional Models ◽  
Tests Of Gravity ◽  
Hilbert Action

We consider the consequences of the leading quartic corrections to the Einstein–Hilbert action of gravity at low energy. Using the equivalence between the scalar [Formula: see text] contribution and a scalar-tensor field theory, we analyze the possible ways of detecting the associated scalaron and suggest that short distance tests of gravity, and in particular future tests of Newton’s law aboard satellites, would provide the best environment to detect such a modification of gravity. We also analyze the regimes for which the [Formula: see text] theory would result as a low energy manifestation of putative high energy UV completions involving extra dimensions. In the four-dimensional [Formula: see text] supergravity limit of such extra-dimensional models, the [Formula: see text] models would emerge from the stabilization of a nearly no-scale superfield such as the ones associated to the Kähler modulus corresponding to the breathing mode of a six-dimensional compactification.

scholarly journals Electroweak corrections to high energy processes using effective field theory

2008 ◽  
Vol 77 (5) ◽  
Author(s):  
Jui-yu Chiu ◽  
Frank Golf ◽  
Randall Kelley ◽  
Aneesh V. Manohar
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
High Energy ◽  
Effective Field ◽  
Energy Processes ◽  
Electroweak Corrections

Laser breakdown in crystalline argon as model of fast high-energy processes

1979 ◽  
Vol 9 (1) ◽  
pp. 48-51
Author(s):  
I I Ashmarin ◽  
A I Andreev ◽  
Yu A Bykovskiĭ ◽  
V A Gridin ◽  
Ya Yu Zysin
Keyword(s):  
High Energy ◽  
Laser Breakdown ◽  
Energy Processes

scholarly journals Searching for elusive dark sectors with terrestrial and celestial observations

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Roberto Contino ◽  
Kevin Max ◽  
Rashmish K. Mishra
Keyword(s):  
Field Theory ◽  
Broad Class ◽  
High Energy ◽  
Effective Field ◽  
Dark Sector ◽  
Minimum Requirement ◽  
Conformal Field ◽  
Starting Point ◽  
The Standard Model ◽  
Visible Sector

Abstract We consider the possible existence of a SM-neutral and light dark sector coupled to the visible sector through irrelevant portal interactions. Scenarios of this kind are motivated by dark matter and arise in various extensions of the Standard Model. We characterize the dark dynamics in terms of one ultraviolet scale Λuv, at which the exchange of heavy mediator fields generates the portal operators, and by one infrared scale ΛIR, setting the mass gap. At energies ΛIR « E « Λuv the dark sector behaves like a conformal field theory and its phenomenology can be studied model independently. We derive the constraints set on this scenario by high- and low-energy laboratory experiments and by astrophysical observations. Our results are conservative and serve as a minimum requirement that must be fulfilled by the broad class of models satisfying our assumptions, of which we give several examples. The experimental constraints are derived in a manner consistent with the validity of the effective field theory used to define the portal interactions. We find that high-energy colliders give the strongest bounds and exclude UV scales up to a few TeV, but only in specific ranges of the IR scale. The picture emerging from current searches can be taken as a starting point to design a future experimental strategy with broader sensitivity.

scholarly journals COMPUTER PROGRAMS FOR ANALYTICAL PERTURBATIVE CALCULATIONS IN HIGH ENERGY PHYSICS

1994 ◽  
Vol 05 (06) ◽  
pp. 1089-1101 ◽  
Author(s):  
LEVAN R. SURGULADZE
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
High Energy Physics ◽  
Short Review ◽  
High Energy ◽  
Quantum Field ◽  
Perturbative Calculations ◽  
Mathematical Algorithm ◽  
Recent Computer ◽  
Energy Physics

A short review of the present status of computer packages for the high order analytical perturbative calculations is presented. The mathematical algorithm and the quantum field theory methods used are briefly discussed. The most recent computer package HEPLoops for analytical computations in high energy physics up to four-loops is also discussed.

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