Two- and Three-Pion Finite-Volume Spectra at Maximal Isospin from Lattice QCD
نویسندگان
چکیده
منابع مشابه
Lattice QCD at finite isospin density
Nuclear matter has finite baryon number density, finite (negative) isospin density and, under certain conditions, finite (negative) strangeness density. Since having a finite chemical potential for baryon number makes the fermion determinant complex and simulations intractable, we restrict ourselves to zero baryon-number chemical potential. QCD at finite chemical potential μI for isospin (I3) a...
متن کاملQuenched lattice QCD at finite isospin density and related theories
We study quenched QCD at finite chemical potential, μI , for the third component of isospin and quenched two-colour QCD at finite chemical potential, μ, for quark number. In contrast to the quenched approximation to QCD at finite quark-number chemical potential, the quenched approximations to these theories behave similarly to the full theories. The reason is that these theories have real posit...
متن کاملLattice QCD at finite isospin chemical potential and temperature
We simulate lattice QCD at a finite chemical potential μI for isospin (I3) at zero and finite temperatures. At some μI = μc QCD has a second order transition with mean-field critical exponents to a state where (I3) is broken spontaneously by a charged pion condensate. Heating the system with μI > μc we find there is some temperature at which this condensate evaporates. This transition appears t...
متن کاملQCD at finite isospin density: from pion to quark-antiquark condensation
QCD at finite isospin chemical potential μI is studied. This theory has no fermion sign problem and can be simulated on the lattice using present-day techniques. We solve this theory analytically in two limits: low μI where chiral perturbation theory is applicable, and asymptotically high μI where perturbative QCD is at work. At low isospin density the ground state is a superfluid pion condensa...
متن کاملLattice QCD at maximal twist
In this review we discuss the general features of maximally twisted lattice QCD. In particular, we illustrate how automatic O(a) improvement can be achieved and how it is possible to set up a lattice regularization scheme where the problem of wrong chirality mixing (be it finite or infinite) affecting the computation of the matrix elements of the CP-conserving effective weak Hamiltonian is neat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2019
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.123.142002