{"title":"硬 pd$ 碰撞中的色彩透明度","authors":"A. B. Larionov","doi":"arxiv-2409.07845","DOIUrl":null,"url":null,"abstract":"As one of the predictions of perturbative QCD, the effect of color\ntransparency has been the focus of attention in the community studying\nmodifications of hadrons in nuclear medium for several decades. The search for\nthis effect in reactions involving heavy nuclei can be complicated by\nuncertainties in nuclear characteristics (nucleon density distributions and\nwave functions), which can affect the interpretation of experiments. In this\nwork, we consider the reaction $d(p,pp)n$ at $p_{\\rm lab}=15$ GeV/c caused by\nhard elastic $pp$ scattering, in which these uncertainties are actually reduced\nto the behavior of the deuteron wave function at large momenta. It is shown\nthat for transverse momenta of the spectator neutron $\\leq 0.4$ GeV/c the\nchoice of the deuteron wave function cannot affect the identification of the\ncolor transparency effect. A simple method for studying color transparency in\n$dd$ collisions is also suggested based on the identification of quasi-free\n$pd$ interactions.","PeriodicalId":501573,"journal":{"name":"arXiv - PHYS - Nuclear Theory","volume":"13 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Color transparency in hard $pd$ collisions\",\"authors\":\"A. B. Larionov\",\"doi\":\"arxiv-2409.07845\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As one of the predictions of perturbative QCD, the effect of color\\ntransparency has been the focus of attention in the community studying\\nmodifications of hadrons in nuclear medium for several decades. The search for\\nthis effect in reactions involving heavy nuclei can be complicated by\\nuncertainties in nuclear characteristics (nucleon density distributions and\\nwave functions), which can affect the interpretation of experiments. In this\\nwork, we consider the reaction $d(p,pp)n$ at $p_{\\\\rm lab}=15$ GeV/c caused by\\nhard elastic $pp$ scattering, in which these uncertainties are actually reduced\\nto the behavior of the deuteron wave function at large momenta. It is shown\\nthat for transverse momenta of the spectator neutron $\\\\leq 0.4$ GeV/c the\\nchoice of the deuteron wave function cannot affect the identification of the\\ncolor transparency effect. A simple method for studying color transparency in\\n$dd$ collisions is also suggested based on the identification of quasi-free\\n$pd$ interactions.\",\"PeriodicalId\":501573,\"journal\":{\"name\":\"arXiv - PHYS - Nuclear Theory\",\"volume\":\"13 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Nuclear Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.07845\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.07845","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
As one of the predictions of perturbative QCD, the effect of color
transparency has been the focus of attention in the community studying
modifications of hadrons in nuclear medium for several decades. The search for
this effect in reactions involving 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
work, we consider the reaction $d(p,pp)n$ at $p_{\rm lab}=15$ GeV/c caused by
hard elastic $pp$ scattering, in which these uncertainties are actually reduced
to the behavior of the deuteron wave function at large momenta. It is shown
that for transverse momenta of the spectator neutron $\leq 0.4$ GeV/c the
choice of the deuteron wave function cannot affect the identification of the
color transparency effect. A simple method for studying color transparency in
$dd$ collisions is also suggested based on the identification of quasi-free
$pd$ interactions.