Faculty Profiles - IIJIMA, Toru

Papers - IIJIMA, Toru

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Measurement of the tau Lepton Polarization and R(D*) in the Decay anti-B->D*tau--nu tau Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 21 ) page： 211801-1-211801-7 2017.5

Measurement of the tau Lepton Polarization and R(D*) in the Decay (B)over-bar -> D* tau(-) (v)over-bar(tau)

Hirose S, Iijima T, Adachi I, Adamczyk K, Aihara H, Al Said S, Asner D. M, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich A. M, Bansal V, Barberio E, Behera P, Berger M, Bhuyan B, Biswal J, Bondar A, Bonvicini G, Bozek A, Bracko M, Browder T. E, Cervenkov D, Chang P, Chen A, Cheon B. G, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Danilov M, Dash N, Di Carlo S, Dingfelder J, Dolezal Z, Drasal Z, Dutta D, Eidelman S, Epifanov D

PHYSICAL REVIEW LETTERS Vol. 118 ( 21 ) 2017.5

Language：English Publishing type：Research paper (scientific journal) Publisher：AMER PHYSICAL SOC

We report the first measurement of the tau lepton polarization P-tau(D*) in the decay (B) over bar -> D* tau(-) (v) over bar (tau) as well as a newmeasurement of the ratio of the branching fractions R(D*) = B((B) over bar -> D* tau(-) (v) over bar (tau)) / B((B) over bar -> D* l(-) (v) over bar (l)), where l(-) denotes an electron or a muon, and the tau is reconstructed in the modes tau(-) -> pi(-) v(tau) and tau(-) -> rho(-) v(tau). We use the full data sample of 772 x 10(6) B (B) over bar pairs recorded with the Belle detector at the (KEKB) over bar electron-positron collider. Our results, P-tau(D*) = -0.38 +/- 0.51 (stat)(-0.16)(+0.21) (syst) and R(D*) = 0.270 +/- 0.035 (stat)(- 0.025)(+0.028) (syst), are consistent with the theoretical predictions of the standard model.

DOI： 10.1103/PhysRevLett.118.211801

Web of Science

Lepton-Flavor-Dependent Angular Analysis of B->K* l+l- Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 11 ) page： 111801-1-111801-7 2017.5

Lepton-Flavor-Dependent Angular Analysis of B->K* l+l- Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 11 ) page： 111801-1-111801-7 2017.5

Observation of D0->ρ0gamma and Search for CP Violation in Radiative Charm Decays Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 5 ) page： 051801-1-051801-17 2017.1

Observation of D0->ρ0gamma and Search for CP Violation in Radiative Charm Decays Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 5 ) page： 051801-1-051801-17 2017.1

Observation of D0->ρ0gamma and Search for CP Violation in Radiative Charm Decays Reviewed

The Belle collaboration

Physical Review Letters Vol. 118 ( 5 ) page： 051801-1-051801-17 2017.1

Search for D0 decays to invisible final states at Belle Reviewed

The Belle collaboration

Physical Review D Vol. 95 ( 1 ) page： 011102-1-011102-17 2017.1

Search for D0 decays to invisible final states at Belle Reviewed

The Belle collaboration

Physical Review D Vol. 95 ( 1 ) page： 011102-1-011102-17 2017.1

Search for the 0-- glueball in Y(1S) and Y(2S) decays Reviewed

The Belle collaboration

Physical Review D Vol. 95 ( 1 ) page： 012001-1-012001-19 2017.1

Search for the 0(--) glueball in Upsilon(1S) and Upsilon(2S) decays

Jia S, Shen C. P, Yuan C. Z, Adachi I, Aihara H, Al Said S, Asner D. M, Aushev T, Ayad R, Babu V, Badhrees I, Bakich A. M, Bansal V, Barberio E, Behera P, Bhuyan B, Biswal J, Bonvicini G, Bozek A, Bracko M, Browder T. E, Cervenkov D, Chang P, Chekelian V, Chen A, Cheon B. G, Chilikin K, Cho K, Choi S. -K, Choi Y, Cinabro D, Dash N, Di Carlo S, Dolezal Z, Drasal Z, Dutta D, Eidelman S, Farhat H, Fast J. E, Ferber T, Fulsom B. G, Gaur V, Gabyshev N., Garma

PHYSICAL REVIEW D Vol. 95 ( 1 ) 2017.1

Language：English Publishing type：Research paper (scientific journal) Publisher：AMER PHYSICAL SOC

We report the first search for the J(PC) = 0(--) glueball in Upsilon(1S) and Upsilon(2S) decays with data samples of (102 +/- 2) x 10(6) and (158 +/- 4) x 10(6) events, respectively, collected with the Belle detector. No significant signals are observed in any of the proposed production modes, and the 90% credibility level upper limits on their branching fractions in Upsilon(1S) and Upsilon(2S) decays are obtained. The inclusive branching fractions of the Upsilon(1S) and Upsilon(2S) decays into final states with chi(c1) are measured to be B(Upsilon(1S) -> chi(c1) + anything) = (1.90 +/- 0.43(stat) +/- 0.14(syst) x 10(-4) with an improved precision over prior measurements and B Upsilon(2S) -> chi(c1) + anything) = (2.24 +/- 0.44(stat) +/- 0.20(syst) x 10(-4) for the first time.

DOI： 10.1103/PhysRevD.95.012001

Web of Science

Search for a dark vector gauge boson decaying to pi+pi- using eta->pi+pi-gamma decays Reviewed

The Belle collaboration

Physical Review D Vol. 94 ( 7 ) page： 092006-1-092006-6 2016.11

Measurement of the branching ratio of B0->D*+tau-nu tau relative to B0->D*+l--nu l decays with a semileptonic tagging method Reviewed

The Belle collaboration

Physical Review D Vol. 94 ( 7 ) page： 072007-1-072007-18 2016.10

Studies of charmed strange baryons in the Λ D final state at Belle Reviewed

The Belle collaboration

Physical Review D Vol. 94 ( 3 ) page： 032002-1-032002-10 2016.8

Search for a massive invisible particle X0 in B+ ->e+ X0 and B+ -> μ+ X0 decays Reviewed

The Belle collaboration

Physical Review D Vol. 94 ( 1 ) page： 012003-1-012003-8 2016.7

First observation of γγ -> p p-bar K+ K- and search for exotic baryons in pK systems Reviewed

The Belle collaboration

Physical Review D Vol. 93 ( 11 ) page： 112017-1-112017-9 2016.6

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λc+ -> p K+ π- Reviewed

The Belle collaboration

Physical Review Letters Vol. 117 ( 1 ) page： 011801-1-011801-6 2016.6

Search for XYZ states in Υ(1S) inclusive decays Reviewed

The Belle collaboration

Physical Review D Vol. 93 ( 11 ) page： 112013-1-112013-10 2016.6

Search for the decay B0 -> phi gamma Reviewed

The Belle collaboration

Physical Review D Vol. 93 ( 11 ) page： 111101-1-111101-12 2016.6

Observation of Zb(10610) and Zb(10650) decaying to B mesons Reviewed

The Belle collaboration

Physical Review Letters Vol. 116 ( 21 ) page： 212001-1-212001-8 2016.5

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