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Relevant bibliographies by topics / Chiral Perturbation Theory (ChPT)

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Academic literature on the topic 'Chiral Perturbation Theory (ChPT)'

Author: Grafiati

Published: 22 February 2023

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Journal articles on the topic "Chiral Perturbation Theory (ChPT)"

1

Andrianov, Alexander, Vladimir Andrianov, and Domenec Espriu. "Chiral Perturbation Theory vs. Linear Sigma Model in a Chiral Imbalance Medium." Particles 3, no. 1 (2020): 15–22. http://dx.doi.org/10.3390/particles3010002.

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We compare the chiral perturbation theory (ChPT) and the linear sigma model (LSM) as realizations of low energy quantum chromodynamics (QCD) for light mesons in a chirally-imbalanced medium. The relations between the low-energy constants of the chiral Lagrangian and the corresponding constants of the linear sigma model are established as well as the expressions for the decay constant of π -meson in the medium and for the mass of the a 0 . In the large N c count taken from QCD the correspondence of ChPT and LSM is remarkably good and provides a solid ground for the search of chiral imbalance ma

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Kumar, Rajesh, та Arvind Kumar. "η mesons in hot magnetized nuclear matter". Chinese Physics C 46, № 2 (2022): 024109. http://dx.doi.org/10.1088/1674-1137/ac3bc7.

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Abstract interactions are investigated in hot magnetized asymmetric nuclear matter using the chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of η-mesons are calculated using medium modified scalar densities under the influence of an external magnetic field. Further, in a combined chiral model and ChPT approach, off-shell contributions of the interactions are evaluated from the ChPT effective Lagrangian, and the in-medium effect of scalar densities are incorporated from the chiral SU(3) model. We find that the magnetic field has a signific

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3

SCADRON, M. D. "KAON WEAK DECAYS IN CHIRAL THEORIES." Modern Physics Letters A 14, no. 19 (1999): 1273–85. http://dx.doi.org/10.1142/s021773239900136x.

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The ten nonleptonic weak decays K→2π, K→ 3π, KL→2γ, KS→2γ, KL→π02γ, are predicted for a chiral pole model based on the linear sigma model theory which automatically satisfies the partial conservation of axial current (PCAC) hypothesis. These predictions, agreeing with data to the 5% level and containing no or at most one free parameter, are compared with the results of chiral perturbation theory (ChPT). The latter ChPT approach to one-loop level is known to contain at least four free parameters and then predicts a KL→π0γγ rate which is 60% shy of the experimental value.

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4

Bär, Oliver. "Multi-hadron-state contamination in nucleon observables from chiral perturbation theory." EPJ Web of Conferences 175 (2018): 01007. http://dx.doi.org/10.1051/epjconf/201817501007.

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Multi-particle states with additional pions are expected to be a non-negligible source of the excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral perturbation theory (ChPT) can be employed to calculate the contamination due to two-particle nucleon-pion states in various nucleon observables. Results to leading order are presented for the nucleon axial, tensor and scalar charge and three Mellin moments of parton distribution functions: the average quark momentum fraction, the helicity and the transversity moment. Taking into account experiment

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Bijnens, Johan. "ChPT loops for the lattice: pion mass and decay constant, HVP at finite volume and nn̅-oscillations." EPJ Web of Conferences 175 (2018): 06011. http://dx.doi.org/10.1051/epjconf/201817506011.

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I present higher loop order results for several calculations in Chiral perturbation Theory. 1) Two-loop results at finite volume for hadronic vacuum polarization. 2) A three-loop calculation of the pion mass and decay constant in two-flavour ChPT. For the pion mass all needed auxiliary parameters can be determined from lattice calculations of ππ-scattering. 3) Chiral corrections to neutron-anti-neutron oscillations.

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PARK, TAE-SUN. "EFFECTIVE FIELD THEORY PREDICTIONS FOR THE SOLAR PROTON AND 3He BURNING PROCESSES." Modern Physics Letters A 22, no. 25n28 (2007): 2143–51. http://dx.doi.org/10.1142/s021773230702539x.

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A modern effective field theory is exploited to pin down accurately the flux S factors for the pp and hep processes in the Sun. The technique used is to combine the high accuracy established in few-nucleon systems of the "standard nuclear physics approach" (SNPA) and the systematic power counting of chiral perturbation theory (ChPT) into a consistent effective field theory framework. Using highly accurate wave functions obtained in the SNPA and working to N 3 LO in the chiral counting for the current, we make totally parameter-free and error-controlled predictions for the pp and hep processes

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HOFERICHTER, M., V. BARU, C. HANHART, B. KUBIS, A. NOGGA та D. R. PHILLIPS. "PRECISION CALCULATION OF THE π-d SCATTERING LENGTH". International Journal of Modern Physics A 26, № 03n04 (2011): 589–91. http://dx.doi.org/10.1142/s0217751x11052128.

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We present a calculation of the π-d scattering length in the framework of chiral perturbation theory (ChPT) with focus on virtual-photon effects. Using data on pionic deuterium and pionic hydrogen atoms, we extract the isoscalar and isovector pion–nucleon scattering lengths [Formula: see text] and [Formula: see text], as well as—via the Goldberger–Miyazawa–Oehme sum rule—the charged-pion–nucleon coupling constant [Formula: see text]

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Moinester, Murray, and Stefan Scherer. "Compton scattering off pions and electromagnetic polarizabilities." International Journal of Modern Physics A 34, no. 16 (2019): 1930008. http://dx.doi.org/10.1142/s0217751x19300084.

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The electric [Formula: see text] and magnetic [Formula: see text] Compton polarizabilities of both the charged and the neutral pion are of fundamental interest in the low-energy sector of quantum chromodynamics (QCD). Pion polarizabilities affect the shape of the [Formula: see text] Compton scattering angular distribution at back scattering angles and [Formula: see text] absolute cross sections. Theory derivations are given for the [Formula: see text] Compton scattering differential cross section, dispersion relations, and sum rules in terms of the polarizabilities. We review experimental char

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MALTMAN, KIM, та CARL E. WOLFE. "ISOSPIN-BREAKING VACUUM-TO-π0, η PSEUDOSCALAR MATRIX ELEMENTS AT NEXT-TO-LEADING ORDER IN THE CHIRAL EXPANSION". Modern Physics Letters A 13, № 17 (1998): 1347–59. http://dx.doi.org/10.1142/s0217732398001418.

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We employ chiral perturbation theory (ChPT) to evaluate the complete set of pseudoscalar matrix elements, <0|Pf|π0,η>, with Pf any of the flavor-diagonal pseudoscalar currents (f=u,d,s) to [Formula: see text], and to next-to-leading order in the chiral expansion. These matrix elements represent the basic input to a QCD sum rule analysis of isospin breaking in the πNN couplings using the three-point function method. We also discuss how one could use the results to construct a one-parameter family of interpolating fields for the π0, all of whose members have zero vacuum-to-η matrix element

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10

Hofmann, Christoph P. "Partition Function in One, Two, and Three Spatial Dimensions from Effective Lagrangian Field Theory." ISRN Thermodynamics 2014 (March 11, 2014): 1–9. http://dx.doi.org/10.1155/2014/546198.

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The systematic effective Lagrangian method was first formulated in the context of the strong interaction; chiral perturbation theory (CHPT) is the effective theory of quantum chromodynamics (QCD). It was then pointed out that the method can be transferred to the nonrelativistic domain—in particular, to describe the low-energy properties of ferromagnets. Interestingly, whereas for Lorentz-invariant systems the effective Lagrangian method fails in one spatial dimension (ds=1), it perfectly works for nonrelativistic systems in ds=1. In the present brief review, we give an outline of the method an

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Dissertations / Theses on the topic "Chiral Perturbation Theory (ChPT)"

1

Gallorini, Stefano. "Study of the K+ → e+νeγ decay with the NA62 experiment". Doctoral thesis, Scuola Normale Superiore, 2013. http://hdl.handle.net/11384/85872.

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The present thesis is focused on the measurement of the form factors of the K+ → e+νeγ decay (Ke2γ) with data collected by the NA62 experiment in 2007 during a preliminary phase of data taking, dedicated to a precision test of lepton flavour universality. For this phase, the NA62 collaboration used the pre-existing apparatus of the NA48/2 experiment. The measurement of the form factors is a test for the effective theories of strong interaction at low energies as the Chiral Perturbation Theory (ChPT) and the Light Front Quark Model (LFQM). The only kinematic configuration accessible to th

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Shoresh, Noam. "Applications of chiral perturbation theory /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9676.

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Urech, Andreas. "Virtual photons in chiral perturbation theory /." [S.l : s.n.], 1994. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Bär, Oliver. "Chiral perturbation theory for lattice QCD." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/13976.

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Eine zusammenfassende Übersicht über die Formulierung der chiralen Störungstheorie (ChPT) für die Gitter Quantenchromodynamik (QCD) ist gegeben. Wir beginnen mit kurzen Zusammenfassungen der chiralen Störungstheorie für die Kontinuum-QCD sowie Symanziks effektiver Theorie für die Gitter-QCD. Anschließend wird die Formulierung der ChPT für die Gitter-QCD behandelt. Nach einem weiteren Kapitel über partial quenching und Theorien mit gemischten Wirkungen werden konkrete Anwendungen diskutiert: Wilson ChPT, staggered ChPT sowie Wilson ChPT mit einem chiral verdrehten Massenterm. Die folgenden Kap

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Kambor, Joachim. "Nonleptonic weak interactions in chiral perturbation theory /." [S.l.] : [s.n.], 1990. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9068.

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Bird, Christopher Shane. "Infrared regularization in relativistic chiral perturbation theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://hdl.handle.net/1828/1062.

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Chiral perturbation theory is a useful tool in the study of low energy reactions involving light particles. However the inclusion of heavy particles in chiral perturbation theory results in large contributions from loop diagrams which violate the standard power counting scheme. We review two methods, referred to as heavy baryon chiral perturbation theory and infrared regularization, which remove the high energy effects of the heavy particles and which therefore do not violate the power counting scheme. We then use these two methods to calculate the amplitude for pion photoproduction to four

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Cawthorne, Lloyd. "Understanding pion photoproduction using chiral perturbation theory." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/understanding-pion-photoproduction-using-chiral-perturbation-theory(c310b9d0-8994-4fe5-868a-62afcb38bc58).html.

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In this thesis we present the work we have done to further the understanding of neutral pion photoproduction from the proton. Our work used heavy-baryon chiral perturbation theory to fourth order, and we explicitly include the ∆(1232) resonance using the delta power-counting scheme. We also test the effects of including and excluding D-waves, partial waves with orbital angular momentum quantum number of 2. We begin our discussion in chapter 1 with a brief history of nuclear physics before showing how current algebras and the partial-conservation of the axial-vector current (PCAC) can be used t

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Ebertshäuser, Thomas. "Mesonic chiral perturbation theory odd intrinsic parity sector /." [S.l.] : [s.n.], 2001. http://ArchiMeD.uni-mainz.de/pub/2002/0020/diss.pdf.

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Van, de Water Ruth S. "Applications of chiral perturbation theory to lattice QCD /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/9730.

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10

Kokulu, Ahmet. "Eta-eta Prime Mixing In Chiral Perturbation Theory." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609808/index.pdf.

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Quantum Chromodynamics (QCD) is believed to be the theory of strong interactions. At high energies, it has been successfully applied to explain the interactions in accelerators. At these energies, the method used to do the calculations is perturbation theory. But at low energies, since the strong coupling constant becomes large, perturbation theory is no longer applicable. Hence, one needs non-perturbative approaches. Some of these approaches are based on the fundamental QCD Lagrangian, such as the QCD sum rules or lattice calculations. Some others use an effective theory approach to r

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Books on the topic "Chiral Perturbation Theory (ChPT)"

1

Scherer, Stefan. A Primer for Chiral Perturbation Theory. Springer-Verlag Berlin Heidelberg, 2012.

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2

Scherer, Stefan, and Matthias R. Schindler. A Primer for Chiral Perturbation Theory. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-19254-8.

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Scherer, Stefan, and Matthias R. Schindler. A Primer for Chiral Perturbation Theory. Springer, 2011.

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Book chapters on the topic "Chiral Perturbation Theory (ChPT)"

1

Dey, Mira, and Jishnu Dey. "Chiral Perturbation Theory (CHPT)." In Springer Series in Nuclear and Particle Physics. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-84965-7_7.

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2

Shanahan, Phiala Elisabeth. "Chiral Perturbation Theory." In Strangeness and Charge Symmetry Violation in Nucleon Structure. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31438-9_3.

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3

Tiburzi, Brian C. "Chiral Perturbation Theory." In Lattice QCD for Nuclear Physics. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08022-2_4.

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4

Ecker, Gerhard. "Chiral Perturbation Theory." In Quantitative Particle Physics: Cargèse 1992. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2944-6_4.

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5

Neuberger, H. "Chiral Symmetry Outside Perturbation Theory." In Lattice Fermions and Structure of the Vacuum. Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4124-6_11.

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Wirzba, A., Ulf-G. Meißner, and J. A. Oller. "In-medium chiral perturbation theory." In Refereed and selected contributions from International Conference on Quark Nuclear Physics. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09712-0_87.

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7

Borasoy, Bugra. "Introduction to Chiral Perturbation Theory." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-73621-9_1.

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8

Scherer, Stefan, and Matthias R. Schindler. "Chiral Perturbation Theory for Mesons." In A Primer for Chiral Perturbation Theory. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19254-8_3.

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Scherer, Stefan, and Matthias R. Schindler. "Chiral Perturbation Theory for Baryons." In A Primer for Chiral Perturbation Theory. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19254-8_4.

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Merkel, H. "Experimental tests of Chiral Perturbation Theory." In Refereed and selected contributions from International Conference on Quark Nuclear Physics. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09712-0_24.

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Conference papers on the topic "Chiral Perturbation Theory (ChPT)"

1

Fantechi, Riccardo. "Chiral perturbation theory tests." In The XIth International Conference on Heavy Quarks and Leptons. Sissa Medialab, 2012. http://dx.doi.org/10.22323/1.166.0014.

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Scherer, Stefan. "Baryon chiral perturbation theory." In 6th International Workshop on Chiral Dynamics. Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.086.0075.

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Drechsel, Dieter, Barbara Pasquini, and Stefan Scherer. "Pion polarizabilities: No conflict between dispersion theory and ChPT." In 6th International Workshop on Chiral Dynamics. Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.086.0037.

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4

Vioque-Rodríguez, Andrea, Ángel Gómez Nicola, and Domenec Espriu. "Studying chiral imbalance using Chiral Perturbation Theory." In Particles and Nuclei International Conference 2021. Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.380.0369.

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Ecker, Gerhard. "Status of chiral perturbation theory." In VIIIth Conference Quark Confinement and the Hadron Spectrum. Sissa Medialab, 2012. http://dx.doi.org/10.22323/1.077.0025.

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Ecker, Gerhard. "Progress in Chiral Perturbation Theory." In QCD@WORK 2005: International Workshop on Quantum Chromodynamics: Theory and Experiment. AIP, 2006. http://dx.doi.org/10.1063/1.2163739.

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Meißner, Ulf-G. "In-Medium Chiral Perturbation Theory." In PARTICLES AND FIELDS: Eight Mexican Workshop. AIP, 2002. http://dx.doi.org/10.1063/1.1489752.

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Bijnens, Johan. "Chiral Perturbation Theory and mesons." In The 7th International Workshop on Chiral Dynamics. Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.172.0002.

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Pich, A. "Introduction to Chiral Perturbation Theory." In The Fifth Mexican School of particles and fields. AIP, 1994. http://dx.doi.org/10.1063/1.46859.

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Holstein, Barry R. "Introduction to Chiral Perturbation Theory." In Proceedings of the 14th Annual HUGS at CEBAF. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812810205_0002.

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Reports on the topic "Chiral Perturbation Theory (ChPT)"

1

Meissner, U. G. Chiral perturbation theory with nucleons. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10107296.

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Meissner, U. G. Chiral perturbation theory with nucleons. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6095581.

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Lee, T. S. H., V. Bernard, N. Kaiser, and U. G. Meissner. Electroproduction of pions at threshold in chiral perturbation theory. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/166430.

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4

Navratil, P., and E. Caurier. Nuclear structure with accurate chiral perturbation theory nucleon-nucleon potential: Application to 6Li and 10B. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/15009732.

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