Measurement of the Branching Fraction for B0 --> a1(1260)+-pi-+ with 535 Million BBbar Pairs
Abstract
We present a measurement of the branching fraction for the decay B0->a1+(1260)pi- with a1+->pi+pi+pi- using a data sample containing 535x106 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider operating at the Upsilon(4S) resonance. We measure the branching fraction Br(B0->a1+pi-)Br(a1+->pi+pi+pi-) = (14.9 +- 1.6 +- 2.3)x10-6, where the first and second errors are statistical and systematic, respectively.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.