Modern Physics Letters A

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LANDAU-GINZBURG TOPOLOGICAL THEORIES IN THE FRAMEWORK OF GKM AND EQUIVALENT HIERARCHIES
Modern Physics Letters A - Tập 08 Số 11 - Trang 1047-1061 - 1993
S. Kharchev, A. Marshakov, А. Миронов, А. Морозов
We consider the deformations of "monomial solutions" to generalized Kontsevich. model1,2 and establish the relation between the flows generated by these deformations with those of N = 2 Landau-Ginzburg topological theories. We prove that the partition function of a generic generalized Kontsevich model can be presented as a product of some "quasiclassical" factor and n...... hiện toàn bộ
CANONICAL QUANTIZATION AND MASS SPECTRUM OF RELATIVISTIC PARTICLE ANALOGUE OF RELATIVISTIC STRING WITH RIGIDITY
Modern Physics Letters A - Tập 03 Số 13 - Trang 1299-1308 - 1988
Mikhail S. Plyushchay
The generalized model of relativistic particle is studied. Its action contains the term for a free particle of mass m together with an additional term proportional to the curvature of its world trajectory. From the full set of Hamiltonian constraints, the mass shell condition is singled out and canonical quantization of the model is performed. The quantized system is shown to be equivalen...... hiện toàn bộ
GAMOW–TELLER STRENGTH IN THE A = 4 SYSTEM
Modern Physics Letters A - Tập 24 Số 11n13 - Trang 867-870 - 2009
A. Tamii, T. Adachi, H. Fujita, Y. Fujita, K. Hatanaka, Emiko Hiyama, D. Ishikawa, T. Kawabata, Nguyễn Tuấn Khải, Hiroaki Matsubara, Takayuki Myo, Yoko Ogawa, H. Okamura, Yee Yee Oo, H. Sakaguchi, Y. Shimbara, K. Suda, H. Toki, M. Yosoi
Gamow–Teller states, possibly with narrow widths, have been searched for by the 4 He (3 He , t) reaction with an energy resolution of 100 keV. The search is motivated by theoretical discussions on the role of pions in nuclear structure and simulation of supernovae explosion. In the preliminary analysis of the spectrum at around 0°, no significant ...
MATRIX MODEL PERTURBED BY HIGHER ORDER CURVATURE TERMS
Modern Physics Letters A - Tập 07 Số 33 - Trang 3081-3100 - 1992
G.P. Korchemsky
The critical behavior of the D=0 matrix model with the potential perturbed by a nonlocal term generating touchings between random surfaces is studied. It is found that the phase diagram of the model has many features of the phase diagram of discretized Polyakov’s bosonic string with higher order curvature terms included. It contains the phase of smooth (Liouville) surfaces, the intermedia...... hiện toàn bộ
IMPROVED SUPERGEOMETRIES FOR TYPE-II GREEN-SCHWARZ NONLINEAR σ-MODELS
Modern Physics Letters A - Tập 04 Số 21 - Trang 1985-1998 - 1989
Stefano Bellucci, S. James Gates, B. Radak, Sh. I. Vashakidze
New supergeometries which are tailored to simplify calculations of the one-loop quantum corrections of Green-Schwarz nonlinear σ-models are described.
EXTREME DYONIC BLACK HOLES IN STRING THEORY
Modern Physics Letters A - Tập 11 Số 09 - Trang 689-713 - 1996
Arkady A. Tseytlin
Supersymmetric extreme dyonic black holes of toroidally compactified heterotic or type-II string theory can be viewed as lower-dimensional images of solitonic strings wound around a compact dimension. We consider conformal sigma models which describe string configurations corresponding to various extreme dyonic black holes in four and five dimensions. These conformal models have regular s...... hiện toàn bộ
FUSION RULES FOR THE FRACTIONAL LEVEL $\widehat{{\rm sl}(2)}$ ALGEBRA
Modern Physics Letters A - Tập 07 Số 13 - Trang 1185-1195 - 1992
Hidetoshi Awata, Yasuhiko Yamada
We derive, as the condition for the null vector decoupling, the fusion rules for the [Formula: see text] algebra with fractional level, which have an interesting structure related to affine Weyl transformation. It is shown that, to get non-trivial fusion rules, we must include the primary field which belongs to neither the highest nor the lowest weight representations.
IS THE t QUARK RESPONSIBLE FOR THE MASS OF W AND Z BOSONS?
Modern Physics Letters A - Tập 04 Số 11 - Trang 1043-1053 - 1989
V. A. Miransky, Masaharu Tanabashi, Koichi Yamawaki
Based on the dynamical model having a large anomalous dimension γm≃2, we propose that the t quark condensate is responsible for the mass of W and Z bosons within the framework of the SU (3)C×SU(2)L×U(1)Y gauge theory (without Higgs) plus four-fermion interactions among quarks and lepto...... hiện toàn bộ
A POLARISED QCD CONDENSATE: νp ELASTIC SCATTERING AS A PROBE OF UA(1) DYNAMICS
Modern Physics Letters A - Tập 13 Số 10 - Trang 791-803 - 1998
Steven D. Bass
UA(1) dynamics have the potential to induce a polarised condensate inside a nucleon. The formation of this condensate is related to the realisation of UA(1) symmetry breaking by tunneling processes such as instantons. If it is present, the polarised condensate induces a term in g1 which has support only at x=0. Tunneling proce...... hiện toàn bộ
CONSTRAINTS OF MIXING ANGLES FROM NEUTRINO OSCILLATION EXPERIMENTS AND NEUTRINOLESS DOUBLE BETA DECAY
Modern Physics Letters A - Tập 13 Số 28 - Trang 2279-2287 - 1998
Takeshi Fukuyama, Kouichi Matsuda, Hiroyuki Nishiura
From the analyses of the recent data of neutrino oscillation experiments (especially the CHOOZ and the super-Kamiokande experiments), we discuss how these data affect the neutrinoless double beta decay ((ββ)0ν) rate and vice versa assuming that neutrinos are Majorana particles. For the case of m1~m2≪m3 (m<...... hiện toàn bộ
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