Narrow resonances in effective field theory

P. F. Bedaque; H. W. Hammer; U. Van Kolck

doi:10.1016/j.physletb.2003.07.049

Narrow resonances in effective field theory

P. F. Bedaque
, H. W. Hammer
, U. Van Kolck

Research output: Contribution to journal › Article › peer-review

171 Scopus citations

Abstract

We discuss the power counting for effective field theories with narrow resonances near a two-body threshold. Close to threshold, the effective field theory is perturbative and only one combination of coupling constants is fine-tuned. In the vicinity of the resonance, a second, "kinematic" fine-tuning requires a nonperturbative resummation. We illustrate our results in the case of nucleon-alpha scattering.

Original language	English (US)
Pages (from-to)	159-167
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	569
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2003.07.049
State	Published - Sep 11 2003
Externally published	Yes

Keywords

Effective field theory
Narrow resonances

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2003.07.049

Cite this

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title = "Narrow resonances in effective field theory",

abstract = "We discuss the power counting for effective field theories with narrow resonances near a two-body threshold. Close to threshold, the effective field theory is perturbative and only one combination of coupling constants is fine-tuned. In the vicinity of the resonance, a second, {"}kinematic{"} fine-tuning requires a nonperturbative resummation. We illustrate our results in the case of nucleon-alpha scattering.",

keywords = "Effective field theory, Narrow resonances",

author = "Bedaque, \{P. F.\} and Hammer, \{H. W.\} and \{Van Kolck\}, U.",

note = "Funding Information: U.v.K. is grateful to the Nuclear Theory Group at the University of Washington for its hospitality, and to RIKEN, Brookhaven National Laboratory and the US Department of Energy [DE-AC02-98CH10886] for providing the facilities essential for the completion of this work. This research was supported in part by the Director, Office of Energy Research, Office of High-Energy and Nuclear Physics, by the Office of Basic Energy Sciences, Division of Nuclear Sciences, of the US Department of Energy under contract DE-AC03-76SF00098 (P.F.B.), by a DOE Outstanding Junior Investigator Award (U.v.K.), and by an Alfred P. Sloan Fellowship (U.v.K.). ",

year = "2003",

month = sep,

day = "11",

doi = "10.1016/j.physletb.2003.07.049",

language = "English (US)",

volume = "569",

pages = "159--167",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

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TY - JOUR

T1 - Narrow resonances in effective field theory

AU - Bedaque, P. F.

AU - Hammer, H. W.

AU - Van Kolck, U.

N1 - Funding Information: U.v.K. is grateful to the Nuclear Theory Group at the University of Washington for its hospitality, and to RIKEN, Brookhaven National Laboratory and the US Department of Energy [DE-AC02-98CH10886] for providing the facilities essential for the completion of this work. This research was supported in part by the Director, Office of Energy Research, Office of High-Energy and Nuclear Physics, by the Office of Basic Energy Sciences, Division of Nuclear Sciences, of the US Department of Energy under contract DE-AC03-76SF00098 (P.F.B.), by a DOE Outstanding Junior Investigator Award (U.v.K.), and by an Alfred P. Sloan Fellowship (U.v.K.).

PY - 2003/9/11

Y1 - 2003/9/11

N2 - We discuss the power counting for effective field theories with narrow resonances near a two-body threshold. Close to threshold, the effective field theory is perturbative and only one combination of coupling constants is fine-tuned. In the vicinity of the resonance, a second, "kinematic" fine-tuning requires a nonperturbative resummation. We illustrate our results in the case of nucleon-alpha scattering.

AB - We discuss the power counting for effective field theories with narrow resonances near a two-body threshold. Close to threshold, the effective field theory is perturbative and only one combination of coupling constants is fine-tuned. In the vicinity of the resonance, a second, "kinematic" fine-tuning requires a nonperturbative resummation. We illustrate our results in the case of nucleon-alpha scattering.

KW - Effective field theory

KW - Narrow resonances

UR - https://www.scopus.com/pages/publications/0043196834

UR - https://www.scopus.com/pages/publications/0043196834#tab=citedBy

U2 - 10.1016/j.physletb.2003.07.049

DO - 10.1016/j.physletb.2003.07.049

M3 - Article

AN - SCOPUS:0043196834

SN - 0370-2693

VL - 569

SP - 159

EP - 167

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Narrow resonances in effective field theory

Abstract

Keywords

ASJC Scopus subject areas

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