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Initial-state fluctuations in collisions between light and heavy ions

机译:光和重离子之间碰撞中的初始状态波动

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In high-energy collisions involving small nuclei (p + p or x + Au collisions where x = p, d, or He-3) the fluctuating size, shape, and internal gluonic structure of the nucleon is shown to have a strong effect on the initial size and shape of the fireball of new matter created in the collision. A systematic study of the eccentricity coefficients describing this initial fireball state for several semirealistic models of nucleon substructure and for several practically relevant collision systems involving small nuclei is presented. The key importance of multiplicity fluctuations in such systems is pointed out. Our results show large differences from expectations based on conventional Glauber model simulations of the initial state created in such collisions.
机译:在涉及小核的高能碰撞中(P + P或X + Au碰撞,其中X = P,D或He-3)的波动尺寸,形状和内部血压结构显示出对的强烈效果 在碰撞中产生的新物质的火球的初始尺寸和形状。 介绍了对核心结构若干半前期型模型的偏心系数的系统研究,以及用于涉及小核的几种实际相关的碰撞系统。 指出了这种系统中多个波动的关键重要性。 我们的结果显示了根据在这种碰撞中创建的初始状态的传统Glauber模型模拟的预期差异。

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