多$d$玻色子旋转凝聚体$^{102}$ Pd中的潮汐波
Tidal Waves in $^{102}$Pd: A Rotating Condensate of Multiple $d$ bosons
摘要：
在偶-偶振动和过渡核中的低位集体激发可以半经典地描述为原子核表面的四极行波（“潮汐波”），观察到的振动-转动行为可以认为是由相互作用的$d$玻色子的旋转凝聚产生的。本文用多普勒频移衰减法测量了$^{102}$ Pd核yraast带能级的寿命，研究了这些概念。提取的$B(E2)$约化跃迁几率的yrast带显示出单调增加的自旋，在一致的解释的基础上旋转诱导的凝聚对齐$d$玻色子。
英文摘要：
Low-lying collective excitations in even-even vibrational and transitional nuclei may be described semi-classically as quadrupole running waves on the surface of the nucleus ("tidal waves"), and the observed vibrational-rotational behavior can be thought of as resulting from a rotating condensate of interacting $d$ bosons. These concepts have been investigated by measuring lifetimes of the levels in the yrast band of the $^{102}$Pd nucleus with the Doppler Shift Attenuation Method. The extracted $B(E2)$ reduced transition probabilities for the yrast band display a monotonic increase with spin, in agreement with the interpretation based on rotation-induced condensation of aligned $d$ bosons.
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