Four dimensional helicity scheme beyond one loop

doi:10.1103/PhysRevD.86.014019

Title: Four dimensional helicity scheme beyond one loop

Full Record
Other Related Research

Authors:: Kilgore, William B.

Publication Date:: 2012-07-19

Sponsoring Org.:: USDOE

OSTI Identifier:: 1102953

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 86; Journal Issue: 1; Journal ID: ISSN 1550-7998

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Kilgore, William B. Four dimensional helicity scheme beyond one loop.  United States: N. p., 2012. 
        Web.  doi:10.1103/PhysRevD.86.014019.

Copy to clipboard


                    Kilgore, William B. Four dimensional helicity scheme beyond one loop.  United States.  doi:10.1103/PhysRevD.86.014019.

Copy to clipboard


                    Kilgore, William B. Thu .  
        "Four dimensional helicity scheme beyond one loop".  United States.  doi:10.1103/PhysRevD.86.014019.

Copy to clipboard


                    
@article{osti_1102953,

  title        = {Four dimensional helicity scheme beyond one loop},

  author       = {Kilgore, William B.},

  abstractNote = {},

  doi          = {10.1103/PhysRevD.86.014019},

  journal      = {Physical Review D},

  number       = 1,

  volume       = 86,

  place        = {United States},

  year         = {2012},

  month        = {7}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
DOI: 10.1103/PhysRevD.86.014019

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 7 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Four-dimensional helicity scheme and dimensional reconstruction

Journal Article Boughezal, Radja ; Melnikov, Kirill ; Petriello, Frank - Physical Review D
Cited by 9
DOI: 10.1103/PhysRevD.84.034044
Protected helical transport in magnetically doped quantum wires: Beyond the one-dimensional paradigm

Journal Article Stäbler, Florian ; Tsvelik, Alexei M. ; Yevtushenko, Oleg M. - Physical Review B

One-dimensional (1D) quantum wires, which are functionalized by magnetic ad-atoms, can host ballistic helical transport. Helicity protects transport from an undesirable influence of material imperfections and makes the magnetically doped wire very promising elements for nanoelectronics and spintronics. However, fabricating purely 1D conductors is experimentally very challenging and not always feasible. In this paper, we show that the protected helical transport can exist even inquasi-1D wires. We model the quasi-1D magnetically doped wire as two coupled dense 1D Kondo chains. Each chain consists of itinerant electrons interacting with localized quantum magnetic moments - Kondo impurities. We have analyzed the regimesmore »« less
DOI: 10.1103/physrevb.102.161102
One-loop QCD and Higgs bosons to partons processes using six-dimensional helicity and generalized unitarity

Journal Article Davies, Scott - Physical Review. D, Particles Fields

We combine the six-dimensional helicity formalism of Cheung and O'Connell with D-dimensional generalized unitarity to obtain a new formalism for computing one-loop amplitudes in dimensionally regularized QCD. With this procedure, we simultaneously obtain the pieces that are constructible from four-dimensional unitarity cuts and the rational pieces that are missed by them, while retaining a helicity formalism. We illustrate the procedure using four- and five-point one-loop amplitudes in QCD, including examples with external fermions. We also demonstrate the technique's effectiveness in next-to-leading order QCD corrections to Higgs processes by computing the next-to-leading order correction to the Higgs plus three positive-helicity gluonsmore »« less
DOI: 10.1103/PHYSREVD.84.094016
Ultraviolet and infrared zeros of gauge theories at the four-loop order and beyond

Journal Article Pica, Claudio ; Sannino, Francesco - Physical Review. D, Particles Fields

We unveil the general features of the phase diagram for any gauge theory with fermions transforming according to distinct representations of the underlying gauge group, at the four-loop order. We classify and analyze the zeros of the perturbative beta function and discover the existence of a rich phase diagram. The anomalous dimension of the fermion masses, at the infrared stable fixed point, are presented. We show that the infrared fixed point, and associated anomalous dimension, are well described by the all-orders beta function for any theory. We also argue the possible existence, to all orders, of a nontrivial ultraviolet fixedmore »« less
DOI: 10.1103/PHYSREVD.83.035013
A two-loop four-gluon helicity amplitude in QCD

Technical Report Dixon, L

The authors present the two-loop pure gauge contribution to the gluon-gluon scattering amplitude with maximal helicity violation. The construction of the amplitude does not rely directly on Feynman diagrams, but instead uses its analytic properties 4--2{epsilon} dimensions. The authors evaluate the loop integrals appearing in the amplitude through order({epsilon}{sup 0})in terms of polylogarithms.
DOI: 10.2172/753261

Full Text Available

Similar Records