硬pd碰撞中的颜色透明度

IF 0.6 4区 物理与天体物理 Q4 PHYSICS, PARTICLES & FIELDS
A. B. Larionov
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引用次数: 0

摘要

作为微扰量子色动力学(QCD)的预测之一,色透明度的影响一直是核介质中强子修饰研究界关注的焦点。在重核反应中寻找这种效应可能会因为核特性(核子密度分布和波函数)的不确定性而变得复杂,这可能会影响实验的解释。在本文中,我们考虑了\({{p}_{{{\text{lab}}}}} = 15\) GeV/c下由于硬弹性\(pp\)散射引起的\(d(p,pp)n\)反应,其中这些不确定性实际上被简化为高动量下的氘核波函数行为。结果表明,对于小于0.4 GeV/c的旁观中子横动量,氘核波函数的选择不影响颜色透明效应的识别。提出了一种通过识别准自由\(pd\)相互作用来研究\(dd\)碰撞中颜色透明度的简单方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Color Transparency in Hard pd Collisions

Color Transparency in Hard pd Collisions

As one of the predictions of perturbative quantum chromodynamics (QCD), the effect of color transparency has been the focus of attention in the community studying the modifications of hadrons in a nuclear medium for several decades. The search for this effect in reactions on heavy nuclei can be complicated by uncertainties in nuclear characteristics (nucleon density distributions and wave functions), which can affect the interpretation of experiments. In this paper, we consider the \(d(p,pp)n\) reaction at \({{p}_{{{\text{lab}}}}} = 15\) GeV/c due to hard elastic \(pp\) scattering, in which these uncertainties are actually reduced to deuteron wave function behavior at high momenta. It is shown that, for transverse momenta of the spectator neutron below 0.4 GeV/c, the choice of a deuteron wave function cannot influence the identification of color transparency effect. A simple method of studying the color transparency in \(dd\) collisions via the identification of quasi-free \(pd\) interactions is proposed.

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来源期刊
Physics of Particles and Nuclei
Physics of Particles and Nuclei 物理-物理:粒子与场物理
CiteScore
1.00
自引率
0.00%
发文量
116
审稿时长
6-12 weeks
期刊介绍: The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.
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