Results 21 to 30 of about 15,261 (206)
Light- and strange-quark mass dependence of the ρ(770) meson revisited
Journal of High Energy Physics, 2020 Recent lattice data on ππ-scattering phase shifts in the vector-isovector channel, pseudoscalar meson masses and decay constants for strange-quark masses smaller or equal to the physical value allow us to study the strangeness dependence of these ...
R. Molina, J. Ruiz de Elvira
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On the Origin of the Enhancementof CP-violating Charge Asymmetries in $K \rightarrow 3\pi$ Decays Predicted from Chiral Theory [PDF]
, 1993 We present an analysis of the enhancement of CP-violating charge asymmetries in $K \rightarrow 3\pi$ decays. Calculations of decay amplitudes are performed on the basis of bosonized strong and weak Lagrangians derived from QCD-motivated quark Lagrangians.
A. Schaale +29 more
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Chiral power counting of one- and two-body currents in direct detection of dark matter
Physics Letters B, 2015 We present a common chiral power-counting scheme for vector, axial-vector, scalar, and pseudoscalar WIMP–nucleon interactions, and derive all one- and two-body currents up to third order in the chiral expansion.
Martin Hoferichter +2 more
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Introduction to chiral symmetry in QCD
EPJ Web of Conferences, 2017 The main aspects of chiral symmetry in QCD are presented. The necessity of its spontaneous breakdown is explained. Some low-energy theorems are reviewed.
Sazdjian H.
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Navigating collinear superspace
Journal of High Energy Physics, 2020 We introduce a new set of effective field theory rules for constructing Lagrangians with N $$ \mathcal{N} $$ = 1 supersymmetry in collinear superspace. In the standard superspace treatment, superfields are functions of the coordinates x μ θ α θ † α ⋅ $$ \
Timothy Cohen +3 more
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Chiral Structure of Baryon and Scalar Tetraquark Currents
EPJ Web of Conferences, 2014 We investigate chiral properties of local fields of baryons consisting of three quarks with flavor SU(3) symmetry. We construct explicitly independent local threequark fields belonging to definite Lorentz and flavor representations.
Chen Hua-Xing +2 more
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Constraints on disconnected contributions in ππ scattering
Journal of High Energy Physics, 2019 The accuracy of the lattice QCD computation of hadron-hadron scattering at low isospin depends critically on the ability to compute correlation functions with fermionic disconnected Wick contractions.
N. Ripunjay Acharya +3 more
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2, 12, 117, 1959, 45171, 1170086, …: a Hilbert series for the QCD chiral Lagrangian
Journal of High Energy Physics, 2021 We apply Hilbert series techniques to the enumeration of operators in the mesonic QCD chiral Lagrangian. Existing Hilbert series technologies for non-linear realizations are extended to incorporate the external fields. The action of charge conjugation is
Lukáš Gráf +4 more
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ϱ → 4π in chirally symmetric models [PDF]
, 1995 The decays rho0 → 2π+2π− and rho0 → 2π0π+π− are studied using various effective Lagrangians for π and rho (and in some case a1) mesons, all of which respect the approximate chiral symmetry of the strong interaction.
Birse, Michael C., Plant, Robert S.
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Calculation of Chiral Lagrangian Coefficients [PDF]
Chinese Physics Letters, 2003 7 pages, To appear in Chin.Phys.Lett, Year ...
openaire +2 more sources