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Title: Holographic heavy-light chiral effective action

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1349965
Grant/Contract Number:
FG-88ER40388
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 5; Related Information: CHORUS Timestamp: 2017-04-06 11:21:26; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Liu, Yizhuang, and Zahed, Ismail. Holographic heavy-light chiral effective action. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.056022.
Liu, Yizhuang, & Zahed, Ismail. Holographic heavy-light chiral effective action. United States. doi:10.1103/PhysRevD.95.056022.
Liu, Yizhuang, and Zahed, Ismail. Mon . "Holographic heavy-light chiral effective action". United States. doi:10.1103/PhysRevD.95.056022.
@article{osti_1349965,
title = {Holographic heavy-light chiral effective action},
author = {Liu, Yizhuang and Zahed, Ismail},
abstractNote = {},
doi = {10.1103/PhysRevD.95.056022},
journal = {Physical Review D},
number = 5,
volume = 95,
place = {United States},
year = {Mon Mar 27 00:00:00 EDT 2017},
month = {Mon Mar 27 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.95.056022

Citation Metrics:
Cited by: 2works
Citation information provided by
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  • We derive an effective action combining chiral and heavy-quark symmetry, using approximate bosonization techniques to QCD-inspired models of spontaneous symmetry breaking. We explicitly show that the heavy-quark limit is compatible with the large [ital N][sub [ital c]] (number of color) limit in the meson sector, and estimate the couplings between the light and heavy mesons ([ital D],[ital D][sup *], . . .) and their chiral partners to order one in the heavy-quark mass. The relevance of this effective action to solitons with heavy quarks is briefly discussed.
  • Wess-Zumino-type effective actions for a single technion P with light gauge bosons A (gluons, photon, W/sup +- /, and Z/sup 0/) are obtained. These actions show some new anomaly processes which are not contained in the normal chiral Lagrangian. Some GAMMA(A/sub 1/..-->..PA/sub 2/), GAMMA(P..-->..A/sub 1/A/sub 2/), GAMMA(A/sub 1/..-->..A/sub 2/A/sub 3/P), GAMMA(P..-->..3A) are estimated.
  • Using the SU(3) flavor symmetry, we construct the effective chiral Lagrangians for the light and heavy pentaquarks. With the correction from the nonzero current quark mass, we derive the Gell-Mann-Okubo type relations for various pentaquark multiplet masses. We also derive Coleman-Glashow relations for antisextet heavy pentaquark magnetic moments. We study possible decays of pentaquarks into conventional hadrons and interactions between and within various pentaquark multiplets and derive their coupling constants in the SU(3) flavor symmetry limit. Possible kinematically allowed pionic decay modes are pointed out. Finally we discuss the possible mixing between different pentaquark multiplets induced by the quark massmore » which breaks SU(3) symmetry. The pentaquark decay patterns receive correction from this breaking effect.« less
  • An exact solution is obtained in a renormalization-group-improved effective-action model of QCD, for a system containing an infinitely heavy antiquark and a scalar quark of arbitrary mass. The solution corresponds to a solitonlike {ital S}-wave state of finite radius {ital R}. The only input parameters are the QCD scale {Lambda}{sub M{bar S}} (where M{bar S} denotes the modified minimal subtraction scheme), the number of light quark flavors {ital N}{sub {ital f}}, and the scalar-quark mass {ital m}. Color confinement arises from the nonlinear properties of the effective action. An analysis of the radial excitations ({ital m}=0) of the {ital S}-wavemore » soliton state clearly shows that this confinement is linear. We find for high radial excitations that the leading behavior of the total energy of the system ({ital m}=0) is {ital U}{sub {ital N}}={ital Q}{kappa}{ital R}{sub {ital N}}+{ital const}, where {ital Q}={radical}4/3, {kappa}{sup 1/2}=1.043{Lambda}{sub M{bar S}} ({ital N}{sub {ital f}}=3), and {ital R}{sub {ital N}} is the radius of the soliton corresponding to the {ital N}th radial excitation. A detailed description is given of the properties of the ground-state soliton as a function of {ital N}{sub {ital f}} and {ital m}. An analytical expression is obtained for the short-distance behavior of the scalar-quark wave function.« less
  • The Universal One-Loop Effective Action (UOLEA) is a general expression for the effective action obtained by evaluating in a model-independent way the one-loop expansion of a functional path integral. It can also be used to match UV theories to their low-energy EFTs more efficiently by avoiding redundant steps in the application of functional methods, simplifying the process of obtaining Wilson coefficients of operators up to dimension six. In addition to loops involving only heavy fields, matching may require the inclusion of loops containing both heavy and light particles. Here we use the recently-developed covariant diagram technique to extend the UOLEAmore » to include heavy-light terms which retain the same universal structure as the previously-derived heavy-only terms. As an example of its application, we integrate out a heavy singlet scalar with a linear coupling to a light doublet Higgs. The extension presented here is a first step towards completing the UOLEA to incorporate all possible structures encountered in a covariant derivative expansion of the one-loop path integral.« less