New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay
| Autoři: | Marat Khabibullin, Alexey Khotyantsev, Yury Kudenko, Alexander Ivashkin, Shinya Sawada, Youichi IGARASHI |
|---|---|
| Rok vydání: | 2005 |
| Témata: | Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Branching fraction, Bremsstrahlung, Gamma ray, Kinetic energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Photon emission, 0103 physical sciences, Pi, High Energy Physics::Experiment, Atomic physics, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous) |
| Popis: | We present a new result on the K^+ --> pi^+ pi^0 gamma decay measurement using stopped kaons. The best fit to the decay spectrum comprised of 10k events gives a branching ratio for the direct photon emission of [3.8+-0.8(stat)+-0.7(syst)] times 10^{-6} in the pi^+ kinetic energy region of 55 to 90 MeV. This result has been obtained with the assumption that there is no component due to interference with the inner bremsstrahlung. Comment: 14 pages, 7 figures, 3 tables (Fig.1 which had problems with uploading first time is replaced. Besides introduction is changed to bring into accordance with the version published in Eur.Phys.J.C.) |
| Jazyk: | English |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cea0c950bec72bd09a54c43c502a654 http://arxiv.org/abs/hep-ex/0511060 |
| Rights: | OPEN |
| Přírůstkové číslo: | edsair.doi.dedup.....8cea0c950bec72bd09a54c43c502a654 |
| Autor: | Marat Khabibullin, Alexey Khotyantsev, Yury Kudenko, Alexander Ivashkin, Shinya Sawada, Youichi IGARASHI |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Physics
Particle physics Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics Branching fraction Bremsstrahlung Gamma ray Kinetic energy 01 natural sciences High Energy Physics - Experiment Nuclear physics Photon emission 0103 physical sciences Pi High Energy Physics::Experiment Atomic physics 010306 general physics Nuclear Experiment Engineering (miscellaneous) |
| Popis: | We present a new result on the K^+ --> pi^+ pi^0 gamma decay measurement using stopped kaons. The best fit to the decay spectrum comprised of 10k events gives a branching ratio for the direct photon emission of [3.8+-0.8(stat)+-0.7(syst)] times 10^{-6} in the pi^+ kinetic energy region of 55 to 90 MeV. This result has been obtained with the assumption that there is no component due to interference with the inner bremsstrahlung. Comment: 14 pages, 7 figures, 3 tables (Fig.1 which had problems with uploading first time is replaced. Besides introduction is changed to bring into accordance with the version published in Eur.Phys.J.C.) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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