Measurement of the Branching Fraction for B^0 --> a1(1260)+-pi-+ with 535 Million BBbar Pairs
| Autoři: | The Belle Collaboration, Abe, K. |
|---|---|
| Rok vydání: | 2007 |
| Místo uložení: | High Energy Physics - Experiment |
| Témata: | High Energy Physics - Experiment |
| Popis: | We present a measurement of the branching fraction for the decay B^0->a1+(1260)pi- with a1+->pi+pi+pi- using a data sample containing 535x10^6 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(B^0->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. Comment: 9 pages, 2 figures, presented at FPCP 2007; small correction in a reference |
| Druh dokumentu: | Working Paper |
| Přístupová URL adresa: | http://arxiv.org/abs/0706.3279 |
| Přírůstkové číslo: | edsarx.0706.3279 |
| Autor: | The Belle Collaboration, Abe, K. |
| Rok vydání: | 2007 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We present a measurement of the branching fraction for the decay B^0->a1+(1260)pi- with a1+->pi+pi+pi- using a data sample containing 535x10^6 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(B^0->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. Comment: 9 pages, 2 figures, presented at FPCP 2007; small correction in a reference |
| Databáze: | arXiv |
| Externí odkaz: |
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