论文标题

从增强的长寿命颗粒的DE/DX

dE/dx from boosted long-lived particles

论文作者

Giudice, Gian F., McCullough, Matthew, Teresi, Daniele

论文摘要

在围墙上,大量的长寿命充电颗粒可以通过其异常的电离能量损失$ de/dx $揭示。在本文中,我们探讨了一类场景,其中有限llps特别提高,这是由于沉重的父母共鸣的衰减而产生的。与传统上被认为是$ de/dx $ new-new-new-pysics基准相比,这种情况产生了独特的签名。我们证明,与传统的新生理学理论不同,这类模型可以解释Atlas协作中最近报道的$ de/dx $搜索事件过多的事件,而不会与电离和飞行时间测量的确定$β$相冲突。

At colliders massive long-lived charged particles could be revealed through their anomalously large ionisation energy loss $dE/dx$. In this paper we explore a class of scenarios in which the LLPs are particularly boosted, owing to production from the decay of a heavy parent resonance. Such scenarios give rise to unique signatures as compared to traditionally considered $dE/dx$ new-physics benchmarks. We demonstrate that this class of models, unlike traditional new-physics theories, can explain the recently reported excess of events in the $dE/dx$ search by the ATLAS collaboration without conflicting with the determination of $β$ from ionisation and time-of-flight measurements.

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