16267009
Structure of Abrikosov vortices in SU(2) lattice gauge theory
Abstract We calculate the electric flux and magnetic monopole current distribution in the presence of a static quark-antiquark pair of SU(2) lattice gauge theory in the maximal Abelian gauge. The current distribution confines the flux in a dual Abrikosov vortex whose core size is comparable to the flux penetration depth. The observed structure is described by a dual Ginzburg-Landau model.
121208723
Profiles of the confining tube
Abstract Progress in studying colour fields generated by static sources in quenched and unquenched QCD is reported.
118798864
Monopoles and Confinement in Lattice-Gauge Theory.
A C K N O W LED G EM ENTS I am indebted to my advisor, R ichard H aym aker, for his guidance, pa­ tience and encouragem ent during this p ro ject. I am happy to thank him for m any hours of fruitful discussions, for m uch help w ith program m ing, and for taking a lot of trouble to help me gain an appreciation of particle physics in general. I am grateful for his support in encouraging me to a tten d various conferences and sum m er schools, and in giving me the opportun ity to present talks. I am also happy to thank our collaborator, D ana Browne for encour­ agem ent and advice, for being very generous w ith his time, for invaluable help w ith this p ro ject, and also for helping me w ith program m ing, w riting papers, and Tq X . I am also glad to acknowledge useful discussions and help from Chen-H an Lee. I would also like to thank my friends C hristopher C hapm an, Shyamoli C haudhuri, C h itra Guruswamy, Ja i Won Kim, Evan M auceli, Ying Cai Peng, Vijay Poduri, Hossein Sadeghpour, Z ahra Sadeghpour, Jyo tsna V ijapurkar. Bing Yu, and Lijun Zhang, for the ir help and support. M ost of all, I am indebted to my family, w ithout whose support and encouragem ent this work would not have been possible. This work was done on the Physics SUN cluster (LEQSF(90-92)-ENH-12) and on the IBM 3090.
16619649
London relation and fluxoid quantization for monopole currents in U(1) lattice gauge theory.
We explore the mechanism of quark confinement in four-dimensional U(1) lattice gauge theory by measuring the color-magnetic current distribution from Dirac magnetic monopoles in the presence of a static quark-antiquark pair. Our results give the first direct evidence that the quarks induce a solenoidal current distribution that screens the color-electric flux of the quarks in an electric analogue of the Meissner effect in a superconductor. We show that the vacuum state of U(1) lattice gauge theory obeys both a dual version of the London equation and an electric fluxoid quantization condition.
121664310
Energy and action of the colour fields around static quarks
Abstract Results on the profiles of the confining tube in the energy and action densities are discussed. Lattice sum rules are tested in detail.
45414206
Measurement of the penetration depth and coherence length in U(1) and SU(2) dual Abrikosov vortices
Abstract We calculate the electric field and the curl of the magnetic monopole current for U(1) and for SU(2) in the maximal Abelian gauge in the mid-plane between a quark antiquark pair. The results can be understood as a dual Abrikosov vortex in the Ginzburg-Landau theory.
125367573
Scaling of High-Energy Elastic Differential Cross-Sections and Unitarity
121418555
Anharmonic oscillator and the analytic theory of continued fractions
We study anharmonic oscillators of the type $a{x}^{2}+b{x}^{4}+c{x}^{6}$ using the theory of continued fractions. Introducing a new set of coupling constants (depending on $a$, $b$, and $c$) in terms of which the associated difference equation simplifies, we write the Green's function of the theory in terms of an infinite continued fraction of the Stieltjes type, whose poles give the energy eigenvalues. We prove that this continued fraction converges where the corresponding perturbation series in the dominant coupling diverges. We obtain the analytic structure of the Green's function in the complex plane of this coupling constant. A scale transformation allows us to study the analyticity of the Green's function for $a{x}^{2}+c{x}^{6}$ oscillators in the energy plane.
118579192
Multiplicity distributions of shower particles and target fragments in 84Kr36–emulsion interactions at 1 GeV per nucleon
This article focuses on multiplicity distributions of shower particles and target fragments for interaction of 84Kr36 with NIKFI BR-2 nuclear emulsion target at kinetic energy of ~1 GeV per nucleon. Experimental multiplicity distributions of shower particles, grey particles, black particles and heavily ionization particles are well described by multi-component Erlang distribution of multi-source thermal model. We have observed a linear correlation in multiplicities for the above mentioned particles or fragments. Further experimental studies have shown a saturation phenomenon in shower particle multiplicity with the increase of target fragment multiplicity.
199685807
Search of axions from a nuclear power reactor with a high-purity germanium detector
This article reports the first study of possible emissions of axions from power reactors using Primakoff and Compton conversions as the detection mechanisms. The expected experimental signatures are mono-energetic lines produced by their Primakoff or Compton conversions at a high-purity germanium (HPGe) detector. No evidence of axion emissions were observed and constraints on axion couplings versus axion mass within the framework of invisible axion models were placed. This experimental approach provides a unique probe for axion mass at the keV-MeV range not accessible to the other techniques.
119464132
Causal quantum mechanics treating position and momentum symmetrically
De Broglie and Bohm formulated a causal quantum mechanics with a phase space density whose integral over momentum reproduces the position probability density of the usual statistical quantum theory. We propose a causal quantum theory with a joint probability distribution such that the separate probability distributions for position and momentum agree with the usual quantum theory. Unlike the Wigner distribution the suggested distribution is positive-definite and obeys the Liouville condition.