title: Ð Ð¾Ð»Ñ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð²Ð² Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð±Ð°ÑÐ¸Ð¾Ð½Ð¾Ð² Ð¿ÑÐ¸ Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸ÑÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The role of diquark processesto baryon production at high energies
Creators: name: Ð¨Ð°Ð²ÑÐ¸Ð½, ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¸
ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð°Ñ Ñ ÑÐ¾Ð¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ°
ÑÐ¸Ð»ÑÐ½Ð¾Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ
pythia
ÑÐ¸Ð·Ð¸ÐºÐ° Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸Ð¹
Ð¶ÑÑÑÐºÐ¸Ðµ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð²ÑÐµ Ð¿ÑÐ¾ÑÐµÑÑÑ
Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ° Ð¿ÑÐ¸ Ð±Ð¾Ð»ÑÑÐ¸Ñ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½ÑÑ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ°Ñ
diquarks
quantum dynamics
strong interaction
high energy physics
diquarks hard processes
dynamics at large transverse momentum

description: Ð­ÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÑ Ð¿Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±Ð°ÑÐ¸Ð¾Ð½Ð¾Ð² Ñ Ð±Ð¾Ð»ÑÑÐ¸Ð¼Ð¸ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½ÑÐ¼Ð¸ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ°Ð¼Ð¸ $p_T$ Ð² $pp$-ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸ÑÑ Ð¿ÑÐ¸ Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸ÑÑ, Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸ Ð½Ð°Ð»Ð¸ÑÐ¸Ðµ ÑÐ¸Ð»ÑÐ½Ð¾Ð³Ð¾ Ð½Ð°ÑÑÑÐµÐ½Ð¸Ñ Ð¼Ð°ÑÑÑÐ°Ð±Ð½Ð¾Ð¹ Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð¾ÑÑÐ¸. Ð¡ÑÐ°Ð½Ð´Ð°ÑÑÐ½Ð°Ñ Ð¿ÐµÑÑÑÑÐ±Ð°ÑÐ¸Ð²Ð½Ð°Ñ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð°Ñ ÑÑÐ¾Ð¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ° ÑÐ¾ ÑÐ»Ð°Ð±ÑÐ¼ Ð»Ð¾Ð³Ð°ÑÐ¸ÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ð¼ Ð½Ð°ÑÑÑÐµÐ½Ð¸ÐµÐ¼ Ð¼Ð°ÑÑÑÐ°Ð±Ð½Ð¾Ð¹ Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð¾ÑÑÐ¸, Ð³Ð´Ðµ Ð¿ÑÐ¸ Ð±Ð¾Ð»ÑÑÐ¸Ñ $p_T$ Ð¿ÑÐµÐ¾Ð±Ð»Ð°Ð´Ð°ÐµÑ ÑÐ°ÑÑÐµÑÐ½Ð¸Ðµ Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÑ ÐºÐ²Ð°ÑÐºÐ¾Ð², Ð½Ðµ Ð¼Ð¾Ð¶ÐµÑ Ð¾Ð±ÑÑÑÐ½Ð¸ÑÑ Ð¿Ð¾Ð´Ð¾Ð±Ð½Ð¾Ðµ Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ. ÐÐ´Ð½Ð¸Ð¼ Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ ÑÐµÑÐµÐ½Ð¸Ð¹ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¼Ð¾Ð¶ÐµÑ Ð¾ÐºÐ°Ð·Ð°ÑÑÑÑ ÑÑÐµÑ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð² - Ð½ÐµÐ¿ÐµÑÑÑÑÐ±Ð°ÑÐ¸Ð²Ð½ÑÑ ÐºÐ²Ð°Ð·Ð¸ÑÐ°ÑÑÐ¸Ñ Ð² Ð¿ÑÐ¾ÑÐ¾Ð½Ðµ. Ð Ð¿ÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÐ¼Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ðº ÑÑÐ°Ð½Ð´Ð°ÑÑÐ½ÑÐ¼ Ð¿ÐµÑÑÑÑÐ±Ð°ÑÐ¸Ð²Ð½ÑÐ¼ Ð¶ÐµÑÑÐºÐ¸Ð¼ Ð¿Ð¾Ð´Ð¿ÑÐ¾ÑÐµÑÑÐ°Ð¼ Ð´Ð¾Ð±Ð°Ð²Ð»ÑÑÑÑÑ Ð¿Ð¾Ð´Ð¿ÑÐ¾ÑÐµÑÑÑ Ñ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð² Ð¿ÑÐ¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð². Ð Ð¾ÑÐ»Ð¸ÑÐ¸Ð¸ Ð¾Ñ ÐºÐ²Ð°ÑÐºÐ°, Ð´Ð¸ÐºÐ²Ð°ÑÐº, ÐºÐ°Ðº ÑÐ²ÑÐ·Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð´Ð²ÑÑ ÐºÐ²Ð°ÑÐºÐ¾Ð², Ð½Ðµ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾ÑÐµÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ÑÐµÐ¹ Ð¸, ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾, Ð¾Ð±Ð»Ð°Ð´Ð°ÐµÑ ÑÐ¾ÑÐ¼ÑÐ°ÐºÑÐ¾ÑÐ¾Ð¼. ÐÐ°Ð»Ð¸ÑÐ¸Ðµ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÐ¼ÑÐ°ÐºÑÐ¾ÑÐ° ÑÐ¾ ÑÑÐµÐ¿ÐµÐ½Ð½Ð¾Ð¹ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑÑ Ð¾Ñ Ð¿ÐµÑÐµÐ´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ° Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½ÑÐ¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼ Ð½Ð°ÑÑÑÐ¸ÑÑ Ð¼Ð°ÑÑÑÐ°Ð±Ð½ÑÑ Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð¾ÑÑÑ Ð´Ð»Ñ Ð²ÑÑÐ¾Ð´Ð¾Ð² Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ñ Ð±Ð¾Ð»ÑÑÐ¸Ð¼Ð¸ $p_T$ Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ½ÐµÑÐ³Ð¸ÑÑ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹. Ð Ð°Ð±Ð¾ÑÐ° Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð½Ð° Ð±Ð°Ð·Ðµ ÐÑÑÑÐµÐ¹ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾-ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐºÐ¾Ð»Ñ Ð¡ÐÐÐÐ£ Ñ Ð¿ÑÐ¸Ð²Ð»ÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð²ÑÐ¿Ð¾Ð¼Ð¾Ð³Ð°ÑÐµÐ»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð¸Ð½ÑÑÐ¸ÑÑÑÐ° ÑÐ´ÐµÑÐ½Ð¾Ð¹ ÑÐ¸Ð·Ð¸ÐºÐ¸ Ð¸Ð¼ÐµÐ½Ð¸ Ð. Ð. ÐÐ¾Ð½ÑÑÐ°Ð½ÑÐ¸Ð½Ð¾Ð²Ð° ÐÐÐ¦ "ÐÑÑÑÐ°ÑÐ¾Ð²ÑÐºÐ¸Ð¹ Ð¸Ð½ÑÑÐ¸ÑÑÑ". Ð ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾Ð´ÐµÐ»Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÐ¹ Ð¿Ð°ÐºÐµÑ ÑÐ¸Ð·Ð¸ÐºÐ¸ Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸Ð¹ PYTHIA Ð±ÑÐ»Ð¸ Ð´Ð¾Ð±Ð°Ð²Ð»ÐµÐ½Ñ Ð¶ÑÑÑÐºÐ¸Ðµ Ð´Ð¸ÐºÐ²Ð°ÑÐºÐ¾Ð²ÑÐµ Ð¿Ð¾Ð´Ð¿ÑÐ¾ÑÐµÑÑÑ. Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð²ÐµÑÑÐ¸Ð¸ PYTHIA Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ ÑÐµÑÐµÐ½Ð¸Ð¹ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð¸ Ð¿Ð¸Ð¾Ð½Ð¾Ð² Ð¿ÑÐ¸ Ð±Ð¾Ð»ÑÑÐ¸Ñ $p_T$ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ½ÐµÑÐ³Ð¸Ð¹. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð±ÑÐ»Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ñ Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸ÑÑ $\sqrt{s} = 11.5$ ÐÑÐ IHEP (ÐÑÐ¾ÑÐ²Ð¸Ð½Ð¾), $\sqrt{s} = 23.4$ ÐÑÐ FNAL (Ð§Ð¸ÐºÐ°Ð³Ð¾) Ð¸ $\sqrt{s} = 62$ ÐÑÐ CERN (ÐÐµÐ½ÐµÐ²Ð°).
description: The experiments for baryon production at large transverse momenta $p_T$ in $pp$-collisions at high energies have demonstrated the presence of significant breaking the scale invariance. The standard perturbative quantum chromodynamics has a weak logarithmic breaking scaling and can not explain such behaviour. One possible solution of the problem may be taking into account diquarks, nonperturbative quasi-particles in proton. We propose the model in which diquarks take a part in hard subprocesses beside quarks at proton production. Unlike quark, diquark is not a point-like particle being a quasi-bound state of two quarks. Therefore, it has a form factor. The presence of the form factor with power dependence on transferred momentum leads to a significant breaking of the scale invariance. As a result, there is a large difference in baryon production with large $p_T$ at different collision energies. The work was carried out on the basis of the Higher Engineering Physics School of the Peter the Great St. Petersburg Polytechnic University with the help of auxiliary data from the B. P. Konstantinov Petersburg Institute of Nuclear Physics, NRC Kurchatov Institute. During the work the hard diquark subprocesses were added in the program package PYTHIA. The ratio of the invariant cross section of the protons and pions were obtained at large $p_T$ for different energies through the modified PYTHIA version. The obtained results were compared to experimental data at energies $\sqrt{s} = 11.5$ GeV IHEP (Protvino), $\sqrt{s} = 23.4$ GeV FNAL (Chicago) and $\sqrt{s} = 62$ GeV CERN (GenÃ¨ve).