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Joint Institute for Nuclear Research Relativistic ... - Index of - JINR

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“TOMOGRAPHY”OF THE CLUSTER STRUCTURE OF LIGHT NUCLEI<br />

VIA RELATIVISTIC DISSOCIATION<br />

P.I. Zarubin 1†<br />

(1) V. I. Veksler and A. M. Baldin Laboratory <strong>of</strong> High Energy Physics<br />

<strong>Joint</strong> Insitute <strong>for</strong> <strong>Nuclear</strong> <strong>Research</strong>, Dubna, Russia<br />

† E-mail: zarubin@lhe.jinr.ru<br />

Thanks to its record spatial resolution and sensitivity, the method <strong>of</strong> nuclear track<br />

emulsions allowed carrying out a “tomography” <strong>for</strong> a whole family <strong>of</strong> light nuclei, including<br />

neutron deficient ones. In the case <strong>of</strong> peripheral interactions a relativistic scale <strong>of</strong><br />

collisions <strong>of</strong> nuclei not only does not impede investigation <strong>of</strong> the cluster aspects <strong>of</strong> nuclear<br />

structure, but also <strong>of</strong>fers advantages <strong>for</strong> studying few-particle ensembles. The facts collected<br />

in “mosaic” in these notes can serve as experimental “lighthouses” <strong>for</strong> developing<br />

theoretical concepts <strong>of</strong> nuclear clustering as well as <strong>for</strong> planning new experimental studies<br />

with relativistic nuclei.<br />

Ingeneral, thepresentedresultsconfirmthehypothesisthattheknownfeatures<strong>of</strong>light<br />

nuclei define the pattern <strong>of</strong> their relativistic dissociation. The probability distributions<br />

<strong>of</strong> the final configuration <strong>of</strong> fragments allow their contributions to the structure <strong>of</strong> the<br />

investigated nuclei to be evaluated. These distributions have an individual character<br />

<strong>for</strong> each <strong>of</strong> the presented nuclei appearing as their original “autograph”. The nuclei<br />

themselves arepresented as varioussuperpositions <strong>of</strong> light nuclei-cores, thelightest nucleiclustersandnucleons.<br />

There<strong>for</strong>e, theselection<strong>of</strong>anysingleorevenapair<strong>of</strong>configurations<br />

would be a simplification determined by the intention to understand the major aspects <strong>of</strong><br />

nuclearreactionsandnuclearpropertiesratherthantherealsituation. Thedatapresented<br />

are intended to help estimate the degree and effects <strong>of</strong> such simplifications.<br />

133

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