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相关论文: Single and pair $J/\psi$ production in the Improve…

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In the article, we study pair production of heavy quarkonia $(J/\psi J/\psi, \Upsilon\Upsilon, \Upsilon J/\psi)$ in the improved color evaporation model via the parton Reggeization approach. The last one is based on high-energy…

高能物理 - 唯象学 · 物理学 2024-02-26 Alexey Chernyshev , Vladimir Saleev

In the article, we study the associated production of prompt $J/\psi$ mesons and $Z(W)$ bosons in the improved color evaporation model using the high-energy factorization as it is formulated in the parton Reggeization approach. The last one…

高能物理 - 唯象学 · 物理学 2024-10-08 Alexey Chernyshev , Vladimir Saleev

We study the contribution of double parton scattering (DPS) to the associated production of $J/\psi$ mesons and photons with large transverse momenta in proton-proton collisions. Cross sections are computed within high-energy factorization…

高能物理 - 唯象学 · 物理学 2026-04-07 Lev Alimov , Vladimir Saleev

In the article, we study associated production of prompt $J/\psi(\Upsilon)$ and $D-$mesons in the improved color evaporation model using the high-energy factorization approach as it is realized in the Monte-Carlo event generator KaTie. The…

高能物理 - 唯象学 · 物理学 2024-09-04 Alexey Chernyshev , Vladimir Saleev

In the article, we study the processes of single isolated photon production at the LHC energies in the framework of the Parton Reggeization Approach taking into account LO and NLO* contributions, the last one includes only tree-level…

高能物理 - 唯象学 · 物理学 2024-08-28 Alexey Chernyshev , Vladimir Saleev

We study double prompt $J/\psi$ hadroproduction within the nonrelativistic-QCD factorization formalism adopting the parton Reggeization approach to treat initial-state radiation in a gauge invariant and infrared-safe way. We present first…

高能物理 - 唯象学 · 物理学 2019-10-23 Zhi-Guo He , Bernd A. Kniehl , Maxim A. Nefedov , Vladimir A. Saleev

We study single jet and prompt-photon inclusive hadroproduction with multi-Regge kinematics invoking the hypothesis of parton Reggeization in t-channel exchanges at high energy. In this approach, the leading contributions are due to the…

高能物理 - 唯象学 · 物理学 2015-05-28 B. A. Kniehl , V. A. Saleev , A. V. Shipilova , E. V. Yatsenko

The hadroproduction of single isolated photon at high energies is studied within the framework of the NLO${}^\star$ approximation of the Parton Reggeization Approach based on the modified Multi-Regge limit of the hard scattering QCD…

高能物理 - 唯象学 · 物理学 2024-12-31 Alexey Chernyshev , Vladimir Saleev

We study the associated $J/{\psi}$ and direct photon production in the high-energy factorization, as it is formulated in the parton Reggeization approach, using two different models for the hadronization of a heavy quark-antiquark pair into…

高能物理 - 唯象学 · 物理学 2025-04-07 Lev Alimov , Anton Karpishkov , Vladimir Saleev

In the article, the study of unpolarized $J/\psi$ production in proton-proton collisions is presented. The Soft Gluon Resummation approach as a TMD framework was used for description of small-$p_T^{}$ production cross section. The Improved…

高能物理 - 唯象学 · 物理学 2025-11-19 Vladimir Saleev , Kirill Shilyaev

The hadroproduction of prompt isolated photon pairs at high energies is studied in the NLO* framework of the Parton Reggeization Approach. The real part of the NLO corrections is computed, and the procedure for the subtraction of double…

高能物理 - 唯象学 · 物理学 2015-12-02 Maxim Nefedov , Vladimir Saleev

We study the photoproduction of isolated prompt photons associated with hadron jets in the framework of the parton Reggeization approach. The cross section distributions in the transverse energies and pseudorapidities of the prompt photon…

高能物理 - 唯象学 · 物理学 2014-06-23 B. A. Kniehl , M. A. Nefedov , V. A. Saleev

We study the photoproduction of isolated prompt photons associated with hadron jets in the framework of the parton Reggeization approach. The main improvements with respect to previous studies in the k_T-factorization framework include the…

高能物理 - 唯象学 · 物理学 2016-05-20 B. A. Kniehl , M. A. Nefedov , V. A. Saleev

Associated production of prompt $\Upsilon(1S)$ and $D^{+,0}$ mesons has been proposed as a golden channel for the search of Double Parton Scattering, because Single Parton Scattering contribution to the cross-section is believed to be…

高能物理 - 唯象学 · 物理学 2019-05-29 Anton Karpishkov , Maxim Nefedov , Vladimir Saleev

The p_T-spectra for direct J/psi and psi' in hadroproduction at Tevatron energy have been calculated based on NRQCD formalism and fragmentation approximation in the collinear parton model and k_T-factorization approach. We have described…

高能物理 - 唯象学 · 物理学 2011-03-23 V. A. Saleev , D. V. Vasin

We present the general introduction to the Parton Reggeization Approach and discuss some new results on large-p_T production for heavy quarks at the LHC. We concentrate here on study of different correlation spectra for b\barb-jet pairs,…

高能物理 - 唯象学 · 物理学 2017-02-17 Anton Karpishkov , Maxim Nefedov , Vladimir Saleev , Alexandra Shipilova

We study J/psi photoproduction via fragmentation at next-to-leading order in the QCD-improved parton model, using the nonrelativistic factorization formalism proposed by Bodwin, Braaten, and Lepage. We consider direct and resolved…

高能物理 - 唯象学 · 物理学 2009-10-30 Bernd A. Kniehl , Gustav Kramer

We use a new approach to color evaporation model (CEM) for quarkonium production. The production of $c\bar c$ pairs is performed within $k_T$-factorization approach using different unintegrated gluon distribution functions (UGDF) from the…

高能物理 - 唯象学 · 物理学 2019-03-27 Rafal Maciula , Antoni Szczurek , Anna Cisek

We propose that the process of triple prompt $J/\psi$ hadroproduction is a very clean hard probe of multiple-parton scatterings at high-energy hadron colliders, especially the least known triple-parton scattering. A first complete study is…

高能物理 - 唯象学 · 物理学 2019-05-15 Hua-Sheng Shao , Yu-Jie Zhang

In this preprint we analyze the inclusive hadroproduction of heavy charmonia-bottomonia pairs in the Color Glass Condensate framework in the dilute-dense approximation. The production mechanisms can be classified by number of gluons emitted…

高能物理 - 唯象学 · 物理学 2025-03-27 M. Siddikov
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