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Электронный каталог: Kotikov, A. V. - Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach
Kotikov, A. V. - Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach
Статья
Автор: Kotikov, A. V.
Physical Review D: Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach
б.г.
ISBN отсутствует
Автор: Kotikov, A. V.
Physical Review D: Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach
б.г.
ISBN отсутствует
На полку
Статья
Kotikov, A.V.
Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach / A.V.Kotikov, A.V.Lipatov. – Text: electronic // Physical Review D. – 2025. – Vol. 111, No. 9. – P. 094009. – URL: https://doi.org/10.1103/PhysRevD.111.094009. – Bibliogr.: 70.
We present analytical expressions for the transverse momentum dependent (unintegrated) gluon and quark densities in a proton derived at leading order of QCD running coupling and valid at both small and large 𝑥. The calculations are performed using the Kimber-Martin-Ryskin/Watt-Martin-Ryskin prescription (in both differential and integral formulations) with different treatment of kinematical constraint, which reflects the angular and strong ordering conditions for parton emissions. As an input, the analytical solution of QCD evolution equations for conventional (collinear) parton distributions is applied, where the valence and nonsinglet quark parts obey the Gross-Llewellyn-Smith and Gottfried sum rules, and momentum conservation for the singlet quark and gluon densities is taken into account. Several phenomenological parameters are extracted from the combined fit to precision data on the proton structure function 𝐹&sub(2)(𝑥,𝑄*2) collected by the BCDMS, H1, and ZEUS Collaborations, comprising a total of 933 points from 5 datasets. Comparison with the numerical results obtained by other groups is presented, and the phenomenological application to the inclusive 𝑏-jet production at the LHC is given.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 323.5г - Масштабная инвариантность. Партонная модель
Kotikov, A.V.
Updating TMD Parton Densities in a Proton within the Kimber-Martin-Ryskin Approach / A.V.Kotikov, A.V.Lipatov. – Text: electronic // Physical Review D. – 2025. – Vol. 111, No. 9. – P. 094009. – URL: https://doi.org/10.1103/PhysRevD.111.094009. – Bibliogr.: 70.
We present analytical expressions for the transverse momentum dependent (unintegrated) gluon and quark densities in a proton derived at leading order of QCD running coupling and valid at both small and large 𝑥. The calculations are performed using the Kimber-Martin-Ryskin/Watt-Martin-Ryskin prescription (in both differential and integral formulations) with different treatment of kinematical constraint, which reflects the angular and strong ordering conditions for parton emissions. As an input, the analytical solution of QCD evolution equations for conventional (collinear) parton distributions is applied, where the valence and nonsinglet quark parts obey the Gross-Llewellyn-Smith and Gottfried sum rules, and momentum conservation for the singlet quark and gluon densities is taken into account. Several phenomenological parameters are extracted from the combined fit to precision data on the proton structure function 𝐹&sub(2)(𝑥,𝑄*2) collected by the BCDMS, H1, and ZEUS Collaborations, comprising a total of 933 points from 5 datasets. Comparison with the numerical results obtained by other groups is presented, and the phenomenological application to the inclusive 𝑏-jet production at the LHC is given.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 323.5г - Масштабная инвариантность. Партонная модель
