… In these synchrotron radiation calculations, we protect against beam tails out to 10σ x and
30σ y . The beam–beam simulations indicate no long tails in the interaction region. Mask-A …

… *Drs Iwasaki and Nishida contributed equally to this article. … *Drs Iwasaki and Nishida
contributed equally to this article. … *Drs Iwasaki and Nishida contributed equally to this article. …

… In retrospect, the first piRNAs found in Drosophila were those derived from the Suppressor
of Stellate locus on the Y chromosome (127). These piRNAs were suggested to target Stellate…

We report the observation of a narrow charmoniumlike state produced in the exclusive decay
process B±→ K±π+ π− J/ψ. This state, which decays into π+ π− J/ψ, has a mass of 3872.0±…

We present a measurement of the standard model CP violation parameter sin 2 φ 1 based
on a 29.1 fb− 1 data sample collected at the ϒ (4 S) resonance with the Belle detector at the …

The cross section for e+ e−→ π+ π− J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb−
1 data sample collected by the Belle detector at or near the Υ (n S)(n= 1, 2,…, 5) …

The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S)
events in its decade of operation. Super-KEKB, an upgrade of KEKB is under construction, …

We report a measurement of the branching fraction ratios R (D (*)) of B→ D (*) τ− ν τ relative
to B→ D (*) ℓ− ν ℓ (where ℓ= e or μ) using the full Belle data sample of 772× 10 6 BB pairs …

A distinct peak is observed in the π±ψ′ invariant mass distribution near 4.43 GeV in B→ K
π±ψ′ decays. A fit using a Breit-Wigner resonance shape yields a peak mass and width of M…

We study B→ K (*) ℓ+ ℓ− decays (ℓ= e, μ) based on a data sample of 657× 10 6 BB pairs
collected with the Belle detector at the KEKB e+ e− collider. We report the differential branching …