605 research outputs found

### On the Phase of $B^0$--$\bar {B^0}$ Mixing Matrix Elements in the SUSY Standard Model

It is shown that the complex phase of $B^0$--$\bar {B^0}$ mixing matrix
element is same as that of the standard model one up to the minor correction of
the order of $(m_c/m_t)^2$ or less in the SUSY standard model. This conclusion
is valid as far as the Yukawa coupling constants are perturbative and
realistic, and can be available for other realistic models where generation
mixing and CP violation are solely due to Yukawa interaction among quarks and
Higgs doublets.Comment: 8 pages, LaTeX file, figures appended in uuencoded gzipped EPS forma

### Updates of $W_R$ effects on CP angles determination in B decays

The recently observed CP violation in B decay and $B$-\ovar{B} mixing data
put constraints on the mass of $W_R$ and the parameters of the right-handed
current quark mixing matrix $V^R$ in $SU(2)_L \times SU(2)_R\times U(1)$ gauge
model. It is shown that the allowed region of parameters are severely
restricted for light $W_R$ with mass on the order of 1 TeV. There exist sets of
parameters which can accommodate large CP violation as measured by Belle,
$\sin2\phi_1|_{exp}\simeq 1$, for $M_{W_R}=1 \sim 10$ TeV.Comment: 11pages, 19 figures, LaTeX2

### Chiral Lagrangian with higher resonances and flavour $SU(3)$ breaking

A chiral Lagrangian with $SU(3)$ breaking and higher resonances is
proposed. In this model, the $SU(3)$ breaking structure in
vector-pseudoscalar sector is realized with the decay constants of pseudoscalar
mesons and the masses of vector mesons used as inputs. We examine whether the
resulting $SU(3)$ breaking effect in the charge radii of pseudoscalar mesons
is consistent with the experimental facts.Comment: 29 pages, REVTEX(ver.3), DPNU-93-3

### New Physics and CP Angles Measurement at B Factory

We have analyzed how much the $CP$ angles to be measured at B factories can
deviate from the geometrical ones defined in unitarity triangle under the
existence of new physics. The measurements are given in rephasing invariant
form. If KM matrix is not a $3\times 3$ and unitary matrix, $\tilde\phi_1$ and
$\tilde\phi_3$ is affected, and the value of $\tilde\phi_3$ depends on the
decay mode. The deviation is constrained to be less than the experimental
precision attained in the next decade by the available data of the magnitude of
KM matrix elements. Deviation of the sum of three angles from $\pi$ cannot be
detected unless new physics contributes significantly to $b$ decay or $D$ meson
system.Comment: 11 pages, 1 figure in eps format, LaTeX, epsfig.st

### Stent-grafting for a thoracic aortic aneurysm ruptured into the right pleural cavity

AbstractEur J Vasc Endovasc Surg 25, 185–187 (2003

### Study of $B\to D^{**} \pi$ decays

We investigate the production of the novel $P$-wave mesons $D^{*}_{0}$ and
$D^{\prime}_{1} (D_{1})$, identified as $J^{P}=0^+$ and $1^+$, in heavy $B$
meson decays, respectively. With the heavy quark limit, we give our modelling
wave functions for the scalar meson $D^{*}_{0}$. Based on the assumptions of
color transparency and factorization theorem, we estimate the branching ratios
of $B\to D^{*}_{0} \pi$ decays in terms of the obtained wave functions. Some
remarks on $D^{(\prime)}_{1}$ productions are also presented.Comment: 16 pages, 2 figures, Revtex4, to be published in Phys. Rev.

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