RADIATIVE DECAYS OF LIGHT MESONS IN THE STRAIGHT-LINE STRING THEORY

1994 ◽  
Vol 09 (17) ◽  
pp. 3059-3076
Author(s):  
E.B. BERDNIKOV
Keyword(s):  
String Theory ◽  
String Model ◽  
Decay Rates ◽  
Radiative Decays ◽  
Relativistic String ◽  
Radiative Transitions ◽  
Straight Line ◽  
Light Mesons ◽  
K Mesons

The radiative transitions of light mesons are considered in the relativistic string model. The predictions for the decay rates of the light I=1 mesons and K mesons are presented.

Relativistic string model of light mesons with massless quarks

1988 ◽  
Vol 41 (2) ◽  
pp. 293-302 ◽  
Author(s):  
V. I. Borodulin ◽  
M. S. Plyushchay ◽  
G. P. Pron'ko
Keyword(s):  
String Model ◽  
Relativistic String ◽  
Light Mesons

scholarly journals Quark-antiquark states and their radiative transitions in terms of the spectral integral equation: Light mesons

2007 ◽  
Vol 70 (3) ◽  
pp. 450-477 ◽  
Author(s):  
V. V. Anisovich ◽  
L. G. Dakhno ◽  
M. A. Matveev ◽  
V. A. Nikonov ◽  
A. V. Sarantsev
Keyword(s):  
Integral Equation ◽  
Radiative Transitions ◽  
Spectral Integral ◽  
Light Mesons

Introduction to the Relativistic String Theory

10.1142/0679 ◽  
1990 ◽  
Author(s):  
B M Barbashov ◽  
V V Nesterenko ◽  
T Yu Dumbrajs
Keyword(s):  
String Theory ◽  
Relativistic String

CANONICAL QUANTIZATION OF REGULARIZED STRING THEORY

1991 ◽  
Vol 06 (39) ◽  
pp. 3621-3625 ◽  
Author(s):  
S. A. FROLOV ◽  
A. A. SLAVNOV
Keyword(s):  
String Theory ◽  
Canonical Quantization ◽  
String Model ◽  
Critical Dimension ◽  
Hamiltonian Analysis

Canonical quantization of a regularized string model taking into account changes in the type of constraints is performed. It is shown that a standard Hamiltonian analysis of this model leads to a renormalization of the critical dimension obtained in Refs. 4–9 by different methods.

HAMILTONIAN THEORY OF THE RELATIVISTIC STRING

1990 ◽  
Vol 02 (03) ◽  
pp. 355-398 ◽  
Author(s):  
G.P. Pron’ko
Keyword(s):  
String Theory ◽  
Spectral Problem ◽  
Dimensional Space ◽  
Space Time ◽  
Point Of View ◽  
Relativistic String ◽  
Hamiltonian Theory ◽  
Gauge Fixing ◽  
Dimensional Space Time ◽  
Invariant Gauge

The relativistic string theory is considered from the Hamiltonian point of view. It is proposed to formulate the dynamics of string in d-dimensional space-time with the help of the auxiliary spectral problem. This approach gives the possibility to construct a completely new set of variables of string relevant for Lorentz-invariant gauge fixing. The notion of smooth string is introduced for which the successive relativistic invariant quantization could be done explicitly for the d=4 case.

scholarly journals Torsional deformation of nonrelativistic string theory

2021 ◽  
Vol 2021 (9) ◽  
Author(s):  
Ziqi Yan
Keyword(s):  
String Theory ◽  
Closed String ◽  
Target Space ◽  
Spacetime Symmetries ◽  
Nonlinear Sigma Model ◽  
Relativistic String ◽  
Symmetry Principles ◽  
String Spectrum ◽  
Background Fields ◽  
Group Flow

Abstract Nonrelativistic string theory is a self-contained corner of string theory, with its string spectrum enjoying a Galilean-invariant dispersion relation. This theory is unitary and ultraviolet complete, and can be studied from first principles. In these notes, we focus on the bosonic closed string sector. In curved spacetime, nonrelativistic string theory is defined by a renormalizable quantum nonlinear sigma model in background fields, following certain symmetry principles that disallow any deformation towards relativistic string theory. We review previous proposals of such symmetry principles and propose a modified version that might be useful for supersymmetrizations. The appropriate target-space geometry determined by these local spacetime symmetries is string Newton-Cartan geometry. This geometry is equipped with a two-dimensional foliation structure that is restricted by torsional constraints. Breaking the symmetries that give rise to such torsional constraints in the target space will in general generate quantum corrections to a marginal deformation in the worldsheet quantum field theory. Such a deformation induces a renormalization group flow towards sigma models that describe relativistic strings.

Generalization of the relativistic string model in the geometrical approach

1979 ◽  
Vol 3 (5) ◽  
pp. 359-365 ◽  
Author(s):  
B. M. Barbashov ◽  
V. V. Nesterenko ◽  
A. M. Chervjakov
Keyword(s):  
String Model ◽  
Relativistic String ◽  
Geometrical Approach
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