<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mo stretchy="false">〈</mml:mo><mml:mi>V</mml:mi><mml:mi>A</mml:mi><mml:mi>P</mml:mi><mml:mo stretchy="false">〉</mml:mo></mml:math> Green function in the resonance region

Cirigliano, Vincenzo; Ecker, Gerhard; Eidemüller, Markus; Pich, Antonio; Portolés, Jorge

doi:10.1016/j.physletb.2004.06.082

Cited by 86 publications

(66 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…which have already been determined in [16]. In deriving the expressions above, we have assumed SU (3) symmetry for the pseudoscalar masses in the T-matrix.…”

Section: Theoretical Frame For Tau Decaysmentioning

confidence: 99%

“…However when discussing the high energy constraints, SU (3) symmetry will be imposed to the pseudo-Goldstone meson, i.e. only F will enter the discussion of QCD short distance constraints [16]. For the value of the pseudo-Goldstone meson decay constant F in SU (3) limit , we will use the pion decay constant to estimate it.…”

Section: Theoretical Frame For Tau Decaysmentioning

confidence: 99%

“…When the typical energy scale of the process reaches around M ρ , χPT has been extended to resonance chiral theory (RχT), where all of the symmetry allowed operators, consisting of specific number of multiplets of resonances and pseudo-Goldstone mesons, can be introduced in a systematic way [10][11] [12]. To build a more realistic QCD-like effective theory, large-N C techniques and shortdistance constraints from QCD have been implemented into the resonance effective theory to constraint resonance couplings [13] [14][15] [16]. Therefore, resonance chiral effective theory can be a perfect tool to study hadronic τ decays.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study ofτ−→VP−ντin the framework of resonance chiral theory

Guo

2008

Phys. Rev. D

View full text Add to dashboard Cite

In this paper we study two kinds of τ decays:which belong to ∆S = 0 processes and (b) ∆S = 1 processes, like τ − → (ρ 0 K − , ωK − , φK − , K * 0 π − )ν τ , in the framework of resonance chiral theory (RχT). We fit the τ − → ωπ − ν τ spectral function and the invariant mass distribution of ωK in the process of τ − → ωK − ν τ to get the values of unknown resonance couplings. Then we make a prediction for branching ratios of all channels.

show abstract

“…which have already been determined in [16]. In deriving the expressions above, we have assumed SU (3) symmetry for the pseudoscalar masses in the T-matrix.…”

Section: Theoretical Frame For Tau Decaysmentioning

confidence: 99%

Section: Theoretical Frame For Tau Decaysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study ofτ−→VP−ντin the framework of resonance chiral theory

Guo

2008

Phys. Rev. D

View full text Add to dashboard Cite

show abstract

“…Notwithstanding, we can use the known constraints coming from the < V AP > Green-function analysis of Ref. [8] and group some new couplings into expected tiny correction ǫ i , given by…”

Section: The V-a Correlator In Rchtmentioning

confidence: 99%

Current correlators and form factors in the resonance region

Rosell

2009

Nuclear Physics B - Proceedings Supplements

View full text Add to dashboard Cite

Within Resonance Chiral Theory and in the context of QCD current correlators at next-to-leading order in 1/NC , we have analyzed the two-body form factors which include resonances as a final state . The short-distance constraints have been studied. One of the main motivations is the estimation of the chiral low-energy constants at subleading order, that is, keeping full control of the renormalization scale dependence. As an application we show the resonance estimation of some coupling, L r 10 (µ0) = (−4.4 ± 0.9) · 10 −3 and C r 87 (µ0) = (3.1 ± 1.1) · 10 −5 .

show abstract

“…The application of this program in the study of three Green functions of QCD currents, namely V V P [12], V AP [13] and SP P [14] has been very rewarding.…”

Section: Lecs From Large-n C Qcdmentioning

confidence: 99%

Three-point Green Functions in the resonance region : LEC's

Portolés

2007

Nuclear Physics B - Proceedings Supplements

Self Cite

View full text Add to dashboard Cite

Using the 1/NC expansion scheme and truncating the hadronic spectrum to the lowest-lying multiplets of resonances we develop a procedure to implement QCD information on the non-perturbative regime populated by resonances through the use of three-point Green Functions of QCD currents. The process implies to enforce on these functions the constraints provided by their asymptotic behaviour ruled by QCD using their OPE or associated form factors. As a result we are able to determine several couplings of the O(p 6 ) Chiral Perturbation Theory Lagrangian and, in consequence, to address phenomenological issues such as the SU (3) breaking in K ℓ3 decays.

show abstract

〈VAP〉 Green function in the resonance region

Cited by 86 publications

References 29 publications

Study ofτ−→VP−ντin the framework of resonance chiral theory

Study ofτ−→VP−ντin the framework of resonance chiral theory

Current correlators and form factors in the resonance region

Three-point Green Functions in the resonance region : LEC's

Contact Info

Product

Resources

About