Azimuthally Integrated HBT Parameters for Charged Pions in Nucleus-Nucleus Interactions versus Collision Energy

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Bibliographische Detailangaben
Zeitschriftentitel:	Advances in High Energy Physics
Personen und Körperschaften:	Okorokov, V. A.
In:	Advances in High Energy Physics, 2015, 2015, S. 1-13
Format:	E-Article
Sprache:	Englisch
veröffentlicht:	Hindawi Limited
Schlagwörter:	Nuclear and High Energy Physics

Details
Zusammenfassung:	<jats:p>The energy dependence of spatiotemporal characteristics of particle emission region is studied for charged pions produced in nuclear collisions. No dramatic change is observed for the HBT parameters with increasing of the center-of-mass (c.m.) energy per nucleon-nucleon pair,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mtext>N</mml:mtext><mml:mtext>N</mml:mtext></mml:mrow></mml:msub></mml:msqrt></mml:mrow></mml:math>, for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mtext>N</mml:mtext><mml:mtext>N</mml:mtext></mml:mrow></mml:msub></mml:msqrt></mml:mrow></mml:math>of a few GeV to a few TeV. The emission duration is obtained to be almost independent of the c.m. energy within the measurement uncertainties. The analytic function is suggested for a smooth approximation of the energy dependence of the main HBT parameters. The fits demonstrate reasonable agreement with the experimental data. Predictions are made for future LHC and FCC experiments.</jats:p>
Umfang:	1-13
ISSN:	1687-7357 1687-7365
DOI:	10.1155/2015/790646