Observation of $\Upsilon(4S) decays to$\pî+pî-\Upsilon(1S)$ and $\pî+pî-\Upsilon(1S)$ [electronic resource]
The authors present the first measurement of Υ(4S) decays to π⁺π⁻ Υ(1S) and π⁺π⁻ Υ(2S) based on a sample of 230 x 10⁶ Υ(4S) mesons collected with the BABAR detector. They measure the product branching fractions Β(Υ(4S) → π⁺π⁻ Υ(1S)) x Β(Υ(1S) → μ⁺μ⁻) = (2.23 ± 0.25{sub stat} ± 0.27{sub sys}) x 10⁻⁶...
Saved in:
| Online Access: |
Online Access |
|---|---|
| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2006.
|
| Subjects: |
MARC
| LEADER | 00000nam a22000003u 4500 | ||
|---|---|---|---|
| 001 | b7033602 | ||
| 003 | CoU | ||
| 005 | 20080205000000.0 | ||
| 006 | m d f | ||
| 007 | cr ||||||||||| | ||
| 008 | 120331e20060419dcu ot f0|||||eng|d | ||
| 035 | |a (TOE)ost881536 | ||
| 035 | |a (TOE)881536 | ||
| 040 | |a TOE |c TOE | ||
| 049 | |a GDWR | ||
| 072 | 7 | |a 72 |2 edbsc | |
| 086 | 0 | |a E 1.99:slac-pub-11817 | |
| 086 | 0 | |a E 1.99:slac-pub-11817 | |
| 088 | |a slac-pub-11817 | ||
| 245 | 0 | 0 | |a Observation of $\Upsilon(4S) decays to$\pî+pî-\Upsilon(1S)$ and $\pî+pî-\Upsilon(1S)$ |h [electronic resource] |
| 260 | |a Washington, D.C : |b United States. Dept. of Energy ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 2006. | ||
| 300 | |a 7 pages : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 04/19/2006. | ||
| 500 | |a "slac-pub-11817" | ||
| 500 | |a "hep-ex/0604031" | ||
| 500 | |a Aubert, B. | ||
| 520 | 3 | |a The authors present the first measurement of Υ(4S) decays to π⁺π⁻ Υ(1S) and π⁺π⁻ Υ(2S) based on a sample of 230 x 10⁶ Υ(4S) mesons collected with the BABAR detector. They measure the product branching fractions Β(Υ(4S) → π⁺π⁻ Υ(1S)) x Β(Υ(1S) → μ⁺μ⁻) = (2.23 ± 0.25{sub stat} ± 0.27{sub sys}) x 10⁻⁶ and Β(Υ(4S) → π⁺π⁻Υ(2S)) x Β(Υ(2S) → μ⁺μ⁻) = (1.69 ± 0.26{sub stat} ± 0.20{sub sys}) x 10⁻⁶, from which they derive the partial widths Λ(Υ(4S) → π⁺π⁻ Υ(1S)) = (1.8 ± 0.4) keV and Λ(Υ(4S) → π⁺π⁻Υ(2S)) = (2.7 ± 0.8) keV. | |
| 520 | 0 | |a Experiment-hep,hepex. | |
| 536 | |b AC02-76SF00515. | ||
| 650 | 7 | |a Muons Plus. |2 local. | |
| 650 | 7 | |a Pions Plus. |2 local. | |
| 650 | 7 | |a Vector Mesons. |2 local. | |
| 650 | 7 | |a Pions Minus. |2 local. | |
| 650 | 7 | |a Particle Decay. |2 local. | |
| 650 | 7 | |a Data. |2 local. | |
| 650 | 7 | |a Muons Minus. |2 local. | |
| 650 | 7 | |a Branching Ratio. |2 local. | |
| 650 | 7 | |a Physics Of Elementary Particles And Fields. |2 edbsc. | |
| 710 | 2 | |a Stanford Linear Accelerator Center. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
| 856 | 4 | 0 | |u http://www.osti.gov/servlets/purl/881536-tFPnXr/ |z Online Access |
| 907 | |a .b70336027 |b 03-06-23 |c 04-01-12 | ||
| 998 | |a web |b 04-01-12 |c f |d m |e p |f eng |g dcu |h 0 |i 1 | ||
| 956 | |a Information bridge | ||
| 999 | f | f | |i 1ce10ef8-cea3-5668-8702-311e373915db |s 88d3219b-1530-5096-b234-0ee0d1e5313c |
| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:slac-pub-11817 |h Superintendent of Documents classification |i web |n 1 |