535 research outputs found
Study of Rare B Meson Decays at Belle
In this paper, we briefly review results on rare decays of mesons from
the Belle experiment, based on 10.4 fb data collected on the
(4S) resonance. The topics include measurements of Cabibbo suppressed
decays , charmless two-body decays ,
, and , and a search for
flavor changing neutral current decays .Comment: 21 pages, 8 figures, Contribution to the Proceedings of the 4th
International Workshop on B Physics and CP Violation (BCP4), February 19-23,
2001, Ise-Shima, Japa
The inverse loop transform
The loop transform in quantum gauge field theory can be recognized as the
Fourier transform (or characteristic functional) of a measure on the space of
generalized connections modulo gauge transformations. Since this space is a
compact Hausdorff space, conversely, we know from the Riesz-Markov theorem that
every positive linear functional on the space of continuous functions thereon
qualifies as the loop transform of a regular Borel measure on the moduli space.
In the present article we show how one can compute the finite joint
distributions of a given characteristic functional, that is, we derive the
inverse loop transform.Comment: 15 pages, Late
Constants of motion and the conformal anti - de Sitter algebra in (2+1)-Dimensional Gravity
Constants of motion are calculated for 2+1 dimensional gravity with topology
R x T^2 and negative cosmological constant. Certain linear combinations of them
satisfy the anti - de Sitter algebra so(2,2) in either ADM or holonomy
variables. Quantisation is straightforward in terms of the holonomy parameters.
On inclusion of the Hamiltonian three new global constants are derived and the
quantum algebra extends to that of the conformal algebra so(2,3). The modular
group appears as a discrete subgroup of the conformal group. Its quantum action
is generated by these conserved quantities.Comment: 22 pages, Plain Tex, No Figure
Exceptional geometry and tensor fields
We present a tensor calculus for exceptional generalised geometry.
Expressions for connections, torsion and curvature are given a unified
formulation for different exceptional groups E_n(n). We then consider "tensor
gauge fields" coupled to the exceptional generalised gravity. Many of the
properties of forms on manifolds are carried over to these fields.Comment: 22 pp., plain tex. v3: improved reference
The Effect of Dynamical Gauge Field on the Chiral Fermion on a boundary
We study the effect of dynamical gauge field on the Kaplan's chiral fermion
on a boundary in the strong gauge coupling limit in the extra dimension. To all
orders of the hopping parameter expansion, we prove exact parity invariance of
the fermion propagator on the boundary. This means that the chiral property of
the boundary fermion, which seems to survive even in the presence of the gauge
field from a perturbative point of view, is completely destroyed by the
dynamics of the gauge field.Comment: 16 pages (including 7 figures), LaTeX, UT-675, KEK-TH-39
PSA 2018
These preprints were automatically compiled into a PDF from the collection of papers deposited in PhilSci-Archive in conjunction with the PSA 2018
PSA 2018
These preprints were automatically compiled into a PDF from the collection of papers deposited in PhilSci-Archive in conjunction with the PSA 2018
PSA 2018
These preprints were automatically compiled into a PDF from the collection of papers deposited in PhilSci-Archive in conjunction with the PSA 2018
PSA 2016
These preprints were automatically compiled into a PDF from the collection of papers deposited in PhilSci-Archive in conjunction with the PSA 2016
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