Results 41 to 50 of about 1,733,435 (199)

Quantum Chromodynamics with Many Flavors [PDF]

, 1998
We investigate the phase structure of lattice QCD for general number of flavors $N_F$. Based on numerical data combined with the results of the perturbation theory we propose the following picture: When $N_F \ge 17$, there is only one IR fixed point at ...
Iwasaki, Y., Kanaya, K., Kaya, S., Sakai, S., Yoshié, T.   +4 more
core   +3 more sources

Baryon-Baryon Interactions and Spin-Flavor Symmetry from Lattice Quantum Chromodynamics [PDF]

, 2017
Lattice quantum chromodynamics is used to constrain the interactions of two octet baryons at the $SU(3)$ flavor-symmetric point, with quark masses that are heavier than those in nature (equal to that of the physical strange quark mass and corresponding ...
M. Wagman, F. Winter, E. Chang, Z. Davoudi, W. Detmold, K. Orginos, M. Savage, P. Shanahan   +7 more
semanticscholar   +1 more source

Persistent Challenges of Quantum Chromodynamics [PDF]

, 2006
Unlike some models whose relevance to Nature is still a big question mark, Quantum Chromodynamics will stay with us forever. Quantum Chromodynamics (QCD), born in 1973, is a very rich theory supposed to describe the widest range of strong interaction ...
Dokshitzer Yu., Field R. D., Green M. B., M. SHIFMAN, Peloso M., Shifman M., Shifman M.   +6 more
core   +2 more sources

New Approach to Investigation of Nuclei

EPJ Web of Conferences, 2014
We demonstrate that the sum rules of quantum chromodynamics provide a consistent formalism for solving various problems of nuclear physics.
Drukarev E. G., Ryskin M. G., Sadovnikova V. A.   +2 more
doaj   +1 more source

Stefano and Marcello @ Work [PDF]

EPJ Web of Conferences
To honor the memory of Stefano Catani and Marcello Ciafaloni, I describe part of their scientific results in the field of Quantum ChromoDynamics during their long and fruitful careers.
Ridolfi Giovanni
doaj   +1 more source

Multiparticle production and quantum chromodynamics [PDF]

, 2002
The theory of strong interactions, quantum chromodynamics (QCD), is quite successful in the prediction and description of main features of multiparticle production processes at high energies.
Dremin, I. M.
core   +3 more sources

Recent progress in computing four-loop massive correlators [PDF]

, 2006
We report about recent progress in computing four-loop massive correlators. The expansion of these correlators in the external momentum leads to vacuum integrals.
Appelquist, Bernreuther, Bernreuther, Broadhurst, Broadhurst, C. Sturm, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Czakon, Davier, Faisst, Fleischer, Fleischer, Grozin, J.H. Kühn, K.G. Chetyrkin, Kuhn, Laporta, Laporta, Lewis, Mastrolia, Schröder, Schröder, Steinhauser, van Ritbergen, Vermaseren, Vermaseren, Weinberg, Wetzel   +32 more
core   +3 more sources

Double-beta decay matrix elements from lattice quantum chromodynamics [PDF]

, 2017
A lattice quantum chromodynamics (LQCD) calculation of the nuclear matrix element relevant to the $nn\to ppee\overline{\nu}_e\overline{\nu}_e$ transition is described in detail, expanding on the results presented in Ref. [1].
B. Tiburzi, M. Wagman, F. Winter, E. Chang, Z. Davoudi, W. Detmold, K. Orginos, M. Savage, P. Shanahan   +8 more
semanticscholar   +1 more source

Quantum Chromodynamics

, 2006
After a brief historical review of the emergence of QCD as the quantum field theory of strong interactions, the basic notions of colour and gauge invariance are introduced leading to the QCD Lagrangian.
Ecker, Gerhard
core   +1 more source

Small parameters in infrared quantum chromodynamics [PDF]

, 2017
We study the long-distance properties of quantum chromodynamics in an expansion in powers of the three-gluon, four-gluon, and ghost-gluon couplings, but without expanding in the quark-gluon coupling. This is motivated by two observations.
M. Pel'aez, U. Reinosa, J. Serreau, M. Tissier, N. Wschebor   +4 more
semanticscholar   +1 more source