On the study of antiprotons yield in hadronic collisions at NICA SPD

$\Lambda\bar{\Lambda}$ 对产生中的自旋-自旋关联：NICA 上的 SPD 实验

Spin-spin correlations in $Λ\barΛ$ pair production at the SPD experiment at NICA

针对NICA的SPD实验，在pp和dd碰撞中评估ΛΛ̄对自旋关联的可行性，基于SU(6)和Burkardt-Jaffe模型估算关联，分析运动学并模拟探测器适用性，以研究s̄s产生机制和初始态极化作用。

On the physics potential to study the gluon content of proton and deuteron at NICA SPD

The Spin Physics Detector (SPD) is a future multipurpose experiment foreseen to run at the NICA collider, which is currently under construction at the Joint Institute for Nuclear Research (JINR, Dubna, Russia). The physics program of the experiment is based on collisions of longitudinally and transversely polarized protons and deuterons at $\sqrt{s}$ up to 27 GeV and luminosity up to 10$^{32}$ cm$^{-2}$ s$^{-1}$. The SPD will operate as a universal facility for comprehensive study of unpolarized and polarized gluon content of the nucleon, using different complementary probes such as: charmonia…

Spin Physics Detector at NICA

The Spin Physics Detector is one of two large setups at the NICA collider under construction at JINR (Dubna). The ultimate goal of the studies at SPD is the measurement of different spin observables in polarized proton-proton and deuteron-deuteron collisions sensitive to the polarized gluon structure of the nucleon at the luminosity up to 10$^{32}$ $cm^{-2}\cdot s^{-1}$ and $\sqrt{s}$ up to 27 GeV. SPD will consist of the superconducting magnetic system, silicon tracker, straw mini-drift tubes tracker, time-of-flight system, electromagnetic "shashlyk"- type calorimeter, muon (range) and local-…

Some problems of determination of the spin structure of the scattering amplitude and experiments at NICA

The existing experimental data are examined under different assumptions about the structure of the scattering amplitude of the proton-proton and proton-antiproton elastic scattering at high energy to obtain the value of rho(s,t), the ratio of the real to imaginary part of the scattering amplitude in the Coulomb-hadron interference region. It is shown that the deviation of rho(s,t) obtained from the experimental data of the proton-antiproton scattering at 3.8 < P_L <6.2 GeV/c from the dispersion analysis is concern in all examined assumptions.

Spin Physics Detector project at JINR

The Spin Physics Detector at the constructing NICA collider (JINR, Dubna) is a universal facility to investigate the spin structure of the proton and deuteron and the other spin-related phenomena with polarized proton and deuteron beams at a collision energy up to 27 GeV. A comprehensive study of the unpolarized and polarized gluon content of the nucleon at large Bjorken-x using different complementary probes such as charmonia, open charm, and prompt photon production processes is the central point of the SPD physics program. In the polarized proton-proton collisions, the SPD experiment at NIC…

基于NICA-SPD重离子碰撞的探测器与物理模拟

Detector and physics simulation using heavy ion collisions at NICA-SPD

本研究通过SMASH模拟NICA-SPD重离子碰撞，评估了以优于10%精度测量π介子和质子谱的可行性，结果显示粒子识别足以验证强子形成模型。

在NICA SPD能量下极化质子与张量极化氘核散射中$T$不变性的检验

Test of $T$-invariance in scattering of polarized protons on tensor-polarized deuterons at energies of the NICA SPD

本文利用基于自旋相关Glauber理论的$pd$散射形式体系，在$\sqrt{s_{pN}}=5$--$30$ GeV能区计算了矢量极化质子与张量极化氘核散射中保持$P$宇称时的$T$不变性破坏效应，所需振幅取自现有唯象模型。

Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams

This paper contains suggestions for experiments with usage of the Spin Physics Detector (SPD) at the first stage of the SPD NICA Programme developing at JINR. Double polarized pp-, dd- and pd- collisions at c.m.s. NN energies of 3.4-10 GeV, which will be accessible at the initial stage of experiments, allow one to study spin dependence of the NN interaction, search for multiquark states at double strangeness, charm and beauty thresholds, study the short-range structure of the deuteron. Double polarized pd scattering offer a possibility to test the Standard Model through the search for T-invari…

$J/ψ$生产在质子-质子碰撞中的Spin Physics Detector能量范围内的Nuclotron-based Ion Collider fAcility

$J/ψ$ production in proton-proton collisions at Spin Physics Detector energies of the JINR Nuclotron-based Ion Collider fAcility

研究了在NICA SPD能量范围内的$J/ψ$生产，比较了不同参数化方法，揭示了颜色八极化机制的主导作用及胶子TMDs对阈值附近敏感性。