DC pole | Wartość | Język |
dc.contributor.author | Campanario, F. | - |
dc.contributor.author | Czyż, Henryk | - |
dc.contributor.author | Gluza, Janusz | - |
dc.contributor.author | Gunia, Michał | - |
dc.contributor.author | Riemann, T. | - |
dc.contributor.author | Rodrigo, G. | - |
dc.contributor.author | Yundin, V. | - |
dc.date.accessioned | 2019-05-29T07:34:13Z | - |
dc.date.available | 2019-05-29T07:34:13Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Journal of High Energy Physics, 2014, iss. 2, art. no. 114 | pl_PL |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/9227 | - |
dc.description.abstract | KLOE and Babar have an observed discrepancy of 2% to 5% in the invariant
pion pair production cross section. These measurements are based on approximate NLO
μ+μ−
cross section predictions of the Monte Carlo event generator PHOKHARA7.0. In
this article, the complete NLO radiative corrections to μ+μ−
production are calculated
and implemented in the Monte Carlo event generator PHOKHARA9.0. Numerical reliability
is guaranteed by two independent approaches to the real and the virtual corrections.
The novel features include the contribution of pentagon diagrams in the virtual corrections,
which form a gauge-invariant set when combined with their box diagram partners. They
may contribute to certain distributions at the percent level. Also the real emission was
complemented with two-photon final state emission contributions not included in the generator
PHOKHARA7.0. We demonstrate that the numerical influence reaches, for realistic
charge-averaged experimental setups, not more than 0.1% at KLOE and 0.3% at BaBar
energies. As a result, we exclude the approximations in earlier versions of PHOKHARA as
origin of the observed experimental discrepancy. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | B-Physics | pl_PL |
dc.subject | Standard Model | pl_PL |
dc.title | Complete QED NLO contributions to the reaction e(+)e(-) -> mu(+)mu(-)gamma and their implementation in the event generator PHOKHARA | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | Journal of High Energy Physics | pl_PL |
dc.identifier.doi | 10.1007/JHEP02(2014)114 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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