Dielectron Production in C+C Collisions at 2 AGeV with HADES

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• 作者：Witold Przygoda
• 刊名：Nuclear Physics A
• 出版年：2007
• 出版时间：15 February 2007
• 年：2007
• 卷：783
• 期：1-4
• 页码：583-586
• 全文大小：226 K

文摘

The HADES spectrometer is devoted to study production of di-electron pairs from proton, pion and nucleus induced reactions at W6W-32&_mathId=mml1&_user=10&_cdi=5530&_rdoc=86&_acct=C000050221&_version=1&_userid=10&md5=e0f976429785ad6e40432858f7e69d4d"" title=""Click to view the MathML source"">1−2 AGeV. The detector went into operational in 2002 and since then collected data from ¹²C +¹² C collisions at 2 AGeV (2002) and 1 AGeV (2004), ⁴⁰Ar + KCl at 1.757 GeV (2005) and proton-proton reactions at 2.2 GeV (2004) and 1.25 GeV (2006). This paper focuses on the results obtained from ¹²C +¹² C collisions at 2 AGeV. Invariant mass corrected for reconstruction efficiencies will be shown and compared with calculations based on the thermal (PLUTO) and microscopic (HSD, RQMD, UrQMD) transport models.