Emission of light fragments at small angles is studied in relativistic heavy ion collisions using the Diogene plastic wall for both symmetrical and non-symmetrical target-projectile systems with 400 MeV per nucleon and 800 MeV per nucleon incident neon nuclei. Efficiency of multiplicity measurements in the small angle range for the selection of central or peripheral collisions is confirmed for asymmetric systems. Differential production cross sections of Z = 1 fragments show evidence for the existence of two emitting sources. The apparent temperature of each source is obtained from comparison with a thermodynamical model.

中文翻译：

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在E / A = 400 MeV和800 MeV的Ne-Pb和Ne-NaF碰撞中，前向角产生光碎片的独家测量。

在相对论性重离子碰撞中，使用Diogene塑料壁对对称和非对称靶弹系统（每个核素400 MeV和每个核子入射氖离子800 MeV）进行了小角度角度的轻碎片发射研究。对于不对称系统，已确认了在小角度范围内选择中心或外围碰撞的多重测量效率。Z = 1片段的差分生产横截面显示存在两个发射源的证据。每个热源的表观温度是通过与热力学模型比较获得的。