scholarly journals Fourier analysis of the flux-tube distribution in SU(3) lattice QCD

2010 ◽  
Vol 688 (4-5) ◽  
pp. 345-349 ◽  
Author(s):  
Arata Yamamoto
Keyword(s):  
Fourier Analysis ◽  
Lattice Qcd ◽  
Flux Tube

scholarly journals Structure of the baryonic flux tube in Nf = 2 lattice QCD at finite temperature

2004 ◽  
Vol 129-130 ◽  
pp. 742-744 ◽  
Author(s):  
Y. Mori ◽  
V. Bornyakov ◽  
H. Ichie ◽  
Y. Koma ◽  
M. Polikarpov ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Flux Tube ◽  
Finite Temperature

scholarly journals INTER-QUARK POTENTIALS IN BARYONS AND MULTI-QUARK SYSTEMS IN QCD

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2331-2339 ◽  
Author(s):  
HIDEO SUGANUMA ◽  
ARATA YAMAMOTO ◽  
NAOYUKI SAKUMICHI ◽  
TORU T. TAKAHASHI ◽  
HIDEAKI IIDA ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Quark Model ◽  
Flux Tube ◽  
Light Quark ◽  
Linear Potential ◽  
Lattice Calculation ◽  
Quark Confinement ◽  
Gluon Exchange ◽  
The One

We perform the first studies of various inter-quark potentials in SU(3)c lattice QCD. From the accurate lattice calculation for more than 300 different patterns of three-quark (3Q) systems, we find that the static 3Q potential V3Q is well described by Y-Ansatz, i.e., the Coulomb plus Y-type linear potential. Quark confinement mechanism in baryons is also investigated in maximally-Abelian projected QCD. We next study the multi-quark potentials VnQ (n = 4,5) in SU(3)c lattice QCD, and find that they are well described by the one-gluon-exchange Coulomb plus multi-Y type linear potential, which supports the flux-tube picture even for the multi-quarks. Finally, we study the heavy-heavy-light quark (QQq) potential both in lattice QCD and in a lattice-QCD-based quark model.

scholarly journals Highly excited pure gauge SU(3) flux tubes

2022 ◽  
Vol 258 ◽  
pp. 10001
Author(s):  
Pedro Bicudo ◽  
Nuno Cardoso ◽  
Alireza Sharifian
Keyword(s):  
Lattice Qcd ◽  
Flux Tube ◽  
Symmetric Case ◽  
Large Set ◽  
Flux Tubes ◽  
Pure Gauge ◽  
Generalized Eigenvalue ◽  
String Vibrations ◽  
Static Quark

Flux tube spectra are expected to have full towers of levels due to the quantization of the string vibrations. We study a spectrum of flux tubes with static quark and antiquark sources with pure gauge SU(3) lattice QCD in 3+1 dimensions up to a significant number of excitations. To go high in the spectrum, we specialize in the most symmetric case Σg+, use a large set of operators, solve the generalized eigenvalue and compare different lattice QCD gauge actions and anisotropies.

The LDE-Type Flare Occurrence (1969-1993)

1994 ◽  
Vol 144 ◽  
pp. 279-282
Author(s):  
A. Antalová
Keyword(s):  
Time Series ◽  
Fourier Analysis ◽  
Sunspot Cycle ◽  
List Type ◽  
Type Number ◽  
Solar Cycles ◽  
Type Iv ◽  
Long Duration ◽  
Cycle Maximum ◽  
Flare Index

AbstractThe occurrence of LDE-type flares in the last three cycles has been investigated. The Fourier analysis spectrum was calculated for the time series of the LDE-type flare occurrence during the 20-th, the 21-st and the rising part of the 22-nd cycle. LDE-type flares (Long Duration Events in SXR) are associated with the interplanetary protons (SEP and STIP as well), energized coronal archs and radio type IV emission. Generally, in all the cycles considered, LDE-type flares mainly originated during a 6-year interval of the respective cycle (2 years before and 4 years after the sunspot cycle maximum). The following significant periodicities were found:• in the 20-th cycle: 1.4, 2.1, 2.9, 4.0, 10.7 and 54.2 of month,• in the 21-st cycle: 1.2, 1.6, 2.8, 4.9, 7.8 and 44.5 of month,• in the 22-nd cycle, till March 1992: 1.4, 1.8, 2.4, 7.2, 8.7, 11.8 and 29.1 of month,• in all interval (1969-1992):a)the longer periodicities: 232.1, 121.1 (the dominant at 10.1 of year), 80.7, 61.9 and 25.6 of month,b)the shorter periodicities: 4.7, 5.0, 6.8, 7.9, 9.1, 15.8 and 20.4 of month.Fourier analysis of the LDE-type flare index (FI) yields significant peaks at 2.3 - 2.9 months and 4.2 - 4.9 months. These short periodicities correspond remarkably in the all three last solar cycles. The larger periodicities are different in respective cycles.

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