Published November 19, 2001 | Version v1
Miscellaneous

Rearranging Pionless Effective Field Theory

Description

We point out a redundancy in the operator structure of the pionless effective field theory which dramatically simplifies computations. This redundancy is best exploited by using dibaryon fields as fundamental degrees of freedom. In turn, this suggests a new power counting scheme which sums range corrections to all orders. We explore this method with a few simple observables: the deuteron charge form factor, n p -> d gamma, and Compton scattering from the deuteron. Higher dimension operators involving electroweak gauge fields are not renormalized by the s-wave strong interactions, and therefore do not scale with inverse powers of the renormalization scale. Thus, naive dimensional analysis of these operators is sufficient to estimate their contribution to a given process

Availability note (English)

Available from Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Additional details

Publishing Information

Imprint Pagination
212 Kilobytes

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
36060767
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COMPTON EFFECT; DEGREES OF FREEDOM; DEUTERONS; DIBARYONS; DIMENSIONS; FORM FACTORS; REDUNDANCY; RENORMALIZATION; STRONG INTERACTIONS
Descriptors DEC
BARYONS; BASIC INTERACTIONS; CHARGED PARTICLES; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERACTIONS; PARTICLE PROPERTIES; SCATTERING

Optional Information

Contract/Grant/Project number
AC--05-84ER40150
Notes
Also published in journal: Nuclear Physics, A; ISSN 0375-9474; NUPABL; v. 694
Funding organization
USDOE Office of Energy Research ER (United States)
Secondary number(s)
JLAB-THY--00-63; DOE/ER--40150-3336; NUCL-TH--0011067