|
ПОЛЯ, ЧАСТИЦЫ, ЯДРА
Connection formulas between the different QCD orders in application
to the valence parton distribution functions
O. Yu. Shevchenkoa, R. R. Akhunzyanov a Joint Institute for Nuclear Research, Dubna, Moskovskaya obl.
Аннотация:
The formulas directly connecting
parton distribution functions (PDFs)
at the
leading (LO) and next to leading (NLO) QCD orders are applied with respect to
both
unpolarized and polarized valence PDFs. It is shown that the connection
formulas allow
without
any restriction on the allowed $Q^2$ range for the analyzed data to produce
improved LO results on valence PDFs,
which strongly differ from the standard
parametrizations on these quantities, and which could be obtained within the
standard approach
only by using the data produced
at very high $Q^2$ values (that is hardly possible in reality).
Поступила в редакцию: 12.03.2014
Образец цитирования:
O. Yu. Shevchenko, R. R. Akhunzyanov, “Connection formulas between the different QCD orders in application
to the valence parton distribution functions”, Письма в ЖЭТФ, 99:8 (2014), 495–500; JETP Letters, 99:8 (2014), 425–430
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl3710 https://www.mathnet.ru/rus/jetpl/v99/i8/p495
|
Статистика просмотров: |
Страница аннотации: | 125 | PDF полного текста: | 43 | Список литературы: | 34 | Первая страница: | 2 |
|