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Improved measurements of branching fractions andCPasymmetries inB→ηhdecays
Chang, P.,Abe, K.,Adachi, I.,Aihara, H.,Anipko, D.,Bakich, A. M.,Barberio, E.,Bay, A.,Bitenc, U.,Bizjak, I.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T. E.,Chao, Y.,Chen, A.,Chen, K.-F.,Chen, W. American Physical Society 2007 PHYSICAL REVIEW D - Vol.75 No.7
Measurement of thee+e−→D0D*−π+cross section using initial-state radiation
Pakhlova, G.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A. M.,Balagura, V.,Barberio, E.,Bay, A.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T. E.,Chang, P American Physical Society 2009 PHYSICAL REVIEW D - Vol.80 No.9
Study of theB→X(3872)(→D*0D¯0)Kdecay
Aushev, T.,Zwahlen, N.,Adachi, I.,Aihara, H.,Bakich, A. M.,Balagura, V.,Bay, A.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bondar, A.,Bozek, A.,Brodzicka, J.,Browder, T. E.,Chao, Y.,Chen, A.,Chen, P.,C American Physical Society 2010 PHYSICAL REVIEW D - Vol.81 No.3
Miyazaki, Y.,Aihara, H.,Arinstein, K.,Aulchenko, V.,Aushev, T.,Bakich, A.M.,Balagura, V.,Barberio, E.,Bay, A.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bondar, A.,Brač,ko, M.,Browder, T.E.,Chang, North-Holland Pub. Co 2010 Physics letters. Section B Vol.682 No.4
<P><B>Abstract</B></P><P>We search for lepton flavor and lepton number violating <I>τ</I> decays into a lepton (ℓ=electron or muon) and two charged mesons (h,<SUP>h′</SUP>=<SUP>π±</SUP> or <SUP>K±</SUP>), <SUP>τ−</SUP>→<SUP>ℓ−</SUP><SUP>h+</SUP><SUP>h′−</SUP> and <SUP>τ−</SUP>→<SUP>ℓ+</SUP><SUP>h−</SUP><SUP>h′−</SUP>, using 671 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4–8.8)×<SUP>10−8</SUP> for τ→eh<SUP>h′</SUP>, and (3.3–16)×<SUP>10−8</SUP> for τ→μh<SUP>h′</SUP> processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.</P>
Measurement of the branching fraction for the decayΥ(4S)→Υ(1S)π+π−
Sokolov, A.,Shapkin, M.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A. M.,Barberio, E.,Bay, A.,Belous, K.,Bhardwaj, V.,Bondar, A.,Brač,ko, M.,Browder, T. E.,Chang, M.-C.,Chang, P.,Chen, A.,Chen, American Physical Society 2009 PHYSICAL REVIEW D - Vol.79 No.5
Satoyama, N.,Abe, K.,Adachi, I.,Aihara, H.,Anipko, D.,Bakich, A.M.,Barberio, E.,Bedny, I.,Belous, K.,Bitenc, U.,Bizjak, I.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T.E.,Chang, M.-C.,Chang, P.,Ch Elsevier 2007 Physics letters: B Vol.647 No.2
<P><B>Abstract</B></P><P>We present a search for the decays <SUP>B+</SUP>→<SUP>μ+</SUP><SUB>νμ</SUB> and <SUP>B+</SUP>→<SUP>e+</SUP><SUB>νe</SUB> in a 253 fb<SUP>−1</SUP> data sample collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy <I>B</I> factory. We find no significant evidence for a signal and set 90% confidence level upper limits of B(<SUP>B+</SUP>→<SUP>μ+</SUP><SUB>νμ</SUB>)<1.7×<SUP>10−6</SUP> and B(<SUP>B+</SUP>→<SUP>e+</SUP><SUB>νe</SUB>)<9.8×<SUP>10−7</SUP>.</P>
Study of Ωc0 and Ωc∗0 baryons at Belle
Solovieva, E.,Chistov, R.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A.M.,Balagura, V.,Bitenc, U.,Bondar, A.,Brač,ko, M.,Brodzicka, J.,Browder, T.E.,Chang, P.,Chen, A.,Cheon, B.G.,Cho Elsevier 2009 Physics letters: B Vol.672 No.1
<P><B>Abstract</B></P><P>We report results from a study of the charmed double strange baryons Ωc0 and Ωc∗0 at Belle. The Ωc0 is reconstructed using the Ωc0→<SUP>Ω−</SUP><SUP>π+</SUP> decay mode, and its mass is measured to be (2693.6±0.3−1.5+1.8) MeV/<SUP>c2</SUP>. The Ωc∗0 baryon is reconstructed in the Ωc0γ mode. The mass difference <SUB>MΩc∗0</SUB>−<SUB>MΩc0</SUB> is measured to be (70.7±0.9−0.9+0.1) MeV/<SUP>c2</SUP>. The analysis is performed using 673 fb<SUP>−1</SUP> of data on and near the ϒ(4S) collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider.</P>
Measurement ofe+e−→Ds(*)+Ds(*)−cross sections near threshold using initial-state radiation
Pakhlova, G.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Aziz, T.,Bakich, A. M.,Balagura, V.,Barberio, E.,Bay, A.,Belous, K.,Bhardwaj, V.,Bhuyan, B.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T American Physical Society 2011 PHYSICAL REVIEW D - Vol.83 No.1
Search for lepton-flavor-violating <i>τ</i> decay into a lepton and an <sub>f0</sub>(980) meson
Miyazaki, Y.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A.M.,Bay, A.,Bedny, I.,Bitenc, U.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T.E.,Chen, A.,Cheon, B.G.,Cho, I.-S.,Choi, Y.,Dalse Elsevier 2009 Physics letters: B Vol.672 No.4
<P><B>Abstract</B></P><P>We search for lepton-flavor-violating <I>τ</I> decays into a lepton (electron or muon) and an <SUB>f0</SUB>(980) meson using 671 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B(<SUP>τ−</SUP>→<SUP>e−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.2×<SUP>10−8</SUP> and B(<SUP>τ−</SUP>→<SUP>μ−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.4×<SUP>10−8</SUP>. This is the first search performed for these modes.</P>
Measurement of Inclusive RadiativeB-Meson Decays with a Photon Energy Threshold of 1.7 GeV
Limosani, A.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A. M.,Balagura, V.,Barberio, E.,Bay, A.,Belous, K.,Bischofberger, M.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T. E.,Chang, P.,Chao, Y.,Ch American Physical Society 2009 Physical Review Letters Vol.103 No.24
<P>Using 605 fb(-1) of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B-->X(s)gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B-->X(s)}gamma)=(3.45+/-0.15+/-0.40)x10(-4), where the errors are statistical and systematic.</P>