The measurement and precision at B physics experiment are reviewed by taking into account of the numbers of B mesons to be produced in the future experimental projects. With $10^9$ or more B mesons we will be able to fix the parameters in Kobayashi-Maskawa matrix elements or find a signal of new physics.

T. Kurimoto

We calculate the $B\to\pi,\rho$ transition form factors in the framework of perturbative QCD to leading power of $1/M_B$, $M_B$ being the $B$ meson mass. We explain the basic principle by discussing the pion electromagnetic form factor. It is shown that the logarithmic and linear singularities occurring at small momentum fractions of light meson distribution amplitudes do not exist in a self-consistent perturbative analysis, which includes $k_\perp$ and threshold resummations.

T. Kurimoto Hsiang-nan Li A. I. Sanda

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.

H. Hayakawa K. Hosokawa T. Kurimoto

We investigate $\ovar{B^0} \to D_s^- \pi^+$ decay in perturbative QCD approach which has recently been applied to $B$ meson decays. $\ovar{B^0} \to D_s^- \pi^+$ decay (and its charge conjugated mode) can be one of the hopeful modes to determine $|V_{ub}|$ since it occurs through $b \to u$ transition only. We estimate both factorizable and non-factorizable contribution, and show that the non-factorizable contribution is much less than the factorizable one. Our calculation gives ${BR}(\ovar{B^0} \to D_s^- \pi^+) = (50 \sim 70) \times f_{Ds}^2|{V_{ub}}{V_{cs}}|^2$.

H. Hayakawa K. Hosokawa T. Kurimoto

The SciBooNE and MiniBooNE collaborations report the results of a \nu_\mu disappearance search in the \Delta m^2 region of 0.5-40 eV^2. The neutrino rate as measured by the SciBooNE tracking detectors is used to constrain the rate at the MiniBooNE Cherenkov detector in the first joint analysis of data from both collaborations. Two separate analyses of the combined data samples set 90% confidence level (CL) limits on \nu_\mu disappearance in the 0.5-40 eV^2 \Delta m^2 region, with an improvement over previous experimental constraints between 10 and 30 eV^2.

MiniBooNE SciBooNE Collaborations : K. B. M. Mahn Y. Nakajima A. A. Aguilar-Arevalo J. L. Alcaraz-Aunion C. E. Anderson A. O. Bazarko S. J. Brice B. C. Brown L. Bugel J. Cao J. Catala-Perez G. Cheng L. Coney J. M. Conrad D. C. Cox A. Curioni R. Dharmapalan Z. Djurcic U. Dore D. A. Finley B. T. Fleming R. Ford A. J. Franke F. G. Garcia G. T. Garvey C. Giganti J. J. Gomez-Cadenas J. Grange C. Green J. A. Green P. Guzowski A. Hanson T. L. Hart E. Hawker Y. Hayato K. Hiraide W. Huelsnitz R. Imlay R. A. Johnson B. J. P. Jones G. Jover-Manas G. Karagiorgi P. Kasper T. Katori Y. K. Kobayashi T. Kobilarcik I. Kourbanis S. Koutsoliotas H. Kubo Y. Kurimoto E. M. Laird S. K. Linden J. M. Link Y. Liu Y. Liu W. C. Louis P. F. Loverre L. Ludovici C. Mariani W. Marsh S. Masuike K. Matsuoka C. Mauger V. T. McGary G. McGregor W. Metcalf P. D. Meyers F. Mills G. B. Mills G. Mitsuka Y. Miyachi S. Mizugashira J. Monroe C. D. Moore J. Mousseau T. Nakaya R. Napora R. H. Nelson P. Nienaber J. A. Nowak D. Orme B. Osmanov M. Otani S. Ouedraogo R. B. Patterson Z. Pavlovic D. Perevalov C. C. Polly E. Prebys J. L. Raaf H. Ray B. P. Roe A. D. Russell F. Sanchez V. Sandberg R. Schirato D. Schmitz M. H. Shaevitz T. -A. Shibata F. C. Shoemaker D. Smith M. Soderberg M. Sorel P. Spentzouris J. Spitz I. Stancu R. J. Stefanski M. Sung H. Takei H. A. Tanaka H. -K. Tanaka M. Tanaka R. Tayloe I. J. Taylor R. J. Tesarek M. Tzanov Y. Uchida R. Van de Water J. J. Walding M. O. Wascko D. H. White H. B. White M. J. Wilking M. Yokoyama H. J. Yang G. P. Zeller E. D. Zimmerman

The SciBooNE Collaboration reports K+ production cross section and rate measurements using high energy daughter muon neutrino scattering data off the SciBar polystyrene (C8H8) target in the SciBooNE detector. The K+ mesons are produced by 8 GeV protons striking a beryllium target in Fermilab Booster Neutrino Beam line (BNB). Using observed neutrino and antineutrino events in SciBooNE, we measure d2{\sigma}/dpd{\Omega} = (5.34 \times 0.76) mb/(GeV/c \times sr) for p + Be -> K+ + X at mean K+ energy of 3.9 GeV and angle (with respect to the proton beam direction) of 3.7 degrees, corresponding to the selected K+ sample. Compared to Monte Carlo predictions using previous higher energy K+ production measurements, this measurement, which uses the NUANCE neutrino interaction generator, is consistent with a normalization factor of 0.85\times0.12. This agreement is evidence that the extrapolation of the higher energy K+ measurements to an 8 GeV beam energy using Feynman scaling is valid. This measurement reduces the error on the K+ production cross section from 40% to 14%.

The SciBooNE Collaboration G. Cheng C. Mariani J. L. Alcaraz-Aunion S. J. Brice L. Bugel J. Catala-Perez J. M. Conrad Z. Djurcic U. Dore D. A. Finley A. J. Franke C. Giganti a J. J. Gomez-Cadenas P. Guzowski A. Hanson Y. Hayato K. Hiraide G. Jover-Manas G. Karagiorgi T. Katori Y. K. Kobayashi T. Kobilarcik H. Kubo Y. Kurimoto W. C. Louis P. F. Loverre L. Ludovici K. B. M. Mahn S. Masuike K. Matsuoka V. T. McGary W. Metcalf G. B. Mills G. Mitsuka Y. Miyachi S. Mizugashira C. D. Moore Y. Nakajima T. Nakaya R. Napora P. Nienaber D. Orme M. Otani A. D. Russell F. Sanchez M. H. Shaevitz T. -A. Shibata M. Sorel R. J. Stefanski H. Takei H. -K. Tanaka M. Tanaka R. Tayloe I. J. Taylor R. J. Tesarek Y. Uchida R. Van de Water J. J. Walding M. O. Wascko H. B. White M. Yokoyama G. P. Zeller E. D. Zimmerman

The MiniBooNE and SciBooNE collaborations report the results of a joint search for short baseline disappearance of \bar{{\nu}_{\mu}} at Fermilab's Booster Neutrino Beamline. The MiniBooNE Cherenkov detector and the SciBooNE tracking detector observe antineutrinos from the same beam, therefore the combined analysis of their datasets serves to partially constrain some of the flux and cross section uncertainties. Uncertainties in the {\nu}_{\mu} background were constrained by neutrino flux and cross section measurements performed in both detectors. A likelihood ratio method was used to set a 90% confidence level upper limit on \bar{{\nu}_{\mu}} disappearance that dramatically improves upon prior limits in the {\Delta}m^2=0.1-100 eV^2 region.

MiniBooNE Collaboration SciBooNE Collaboration G. Cheng W. Huelsnitz A. A. Aguilar-Arevalo J. L. Alcaraz-Aunion S. J. Brice B. C. Brown L. Bugel J. Catala-Perez E. D. Church J. M. Conrad R. Dharmapalan Z. Djurcic U. Dore D. A. Finley R. Ford A. J. Franke F. G. Garcia G. T. Garvey C. Giganti J. J. Gomez-Cadenas J. Grange P. Guzowski A. Hanson Y. Hayato K. Hiraide C. Ignarra R. Imlay R. A. Johnson B. J. P. Jones G. Jover-Manas G. Karagiorgi T. Katori Y. K. Kobayashi T. Kobilarcik H. Kubo Y. Kurimoto W. C. Louis P. F. Loverre L. Ludovici K. B. M. Mahn C. Mariani W. Marsh S. Masuike K. Matsuoka V. T. McGary W. Metcalf G. B. Mills J. Mirabal G. Mitsuka Y. Miyachi S. Mizugashira C. D. Moore J. Mousseau Y. Nakajima T. Nakaya R. Napora P. Nienaber D. Orme B. Osmanov M. Otani Z. Pavlovic D. Perevalov C. C. Polly H. Ray B. P. Roe A. D. Russell F. Sanchez M. H. Shaevitz T. -A. Shibata M. Sorel J. Spitz I. Stancu R. J. Stefanski H. Takei H. -K. Tanaka M. Tanaka R. Tayloe I. J. Taylor R. J. Tesarek Y. Uchida R. G. Van de Water J. J. Walding M. O. Wascko D. H. White H. B. White D. A. Wickremasinghe M. Yokoyama G. P. Zeller E. D. Zimmerman

The SciBooNE Collaboration reports a measurement of inclusive charged current interactions of muon neutrinos on carbon with an average energy of 0.8 GeV using the Fermilab Booster Neutrino Beam. We compare our measurement with two neutrino interaction simulations: NEUT and NUANCE. The charged current interaction rates (product of flux and cross section) are extracted by fitting the muon kinematics, with a precision of 6-15% for the energy dependent and 3% for the energy integrated analyses. We also extract CC inclusive interaction cross sections from the observed rates, with a precision of 10-30% for the energy dependent and 8% for the energy integrated analyses. This is the first measurement of the CC inclusive cross section on carbon around 1 GeV. These results can be used to convert previous SciBooNE cross section ratio measurements to absolute cross section values.

SciBooNE Collaboration Y. Nakajima J. L. Alcaraz-Aunion S. J. Brice L. Bugel J. Catala-Perez G. Cheng J. M. Conrad Z. Djurcic U. Dore D. A. Finley A. J. Franke C. Giganti J. J. Gomez-Cadenas P. Guzowski A. Hanson Y. Hayato K. Hiraide G. Jover-Manas G. Karagiorgi T. Katori Y. K. Kobayashi T. Kobilarcik H. Kubo Y. Kurimoto W. C. Louis P. F. Loverre L. Ludovici K. B. M. Mahn C. Mariani S. Masuike K. Matsuoka V. T. McGary W. Metcalf G. B. Mills G. Mitsuka Y. Miyachi S. Mizugashira C. D. Moore T. Nakaya R. Napora P. Nienaber D. Orme M. Otani A. D. Russell F. Sanchez M. H. Shaevitz T. -A. Shibata M. Sorel R. J. Stefanski H. Takei H. -K. Tanaka M. Tanaka R. Tayloe I. J. Taylor R. J. Tesarek Y. Uchida R. Van de Water J. J. Walding M. O. Wascko H. B. White M. Yokoyama G. P. Zeller E. D. Zimmerman

The right-handed charged current gauge boson $W_R$ can affect significantly on the determination of the $CP$ violation angles to be measured at $B$ factories if the right-handed current quark mixing matrix $V^R$ is taken to a specific form to satisfy the bounds by neutral $K$ meson systems. The $W_R$ contribution can be sizable in $B^0$-$\overline{B^0}$ mixing and tree level $b$ quark decay. The deviation of $CP$ angles in unitarity triangle from the standard model values can be as large as $-37^\circ$ or $ +22^\circ$ for $\phi_3$ ($\gamma$), and $66^\circ \sim 115^\circ$ for $\phi_1$ ($\beta$) and $\phi_2$ ($\alpha$).

T. Kurimoto A. Tomita S. Wakaizumi

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.

T. Kurimoto A. Tomita