تقرير
Possible spectral irregularities in the AMS-02 positron spectrum
| العنوان: | Possible spectral irregularities in the AMS-02 positron spectrum |
|---|---|
| المؤلفون: | Lv, Xing-Jian, Bi, Xiao-Jun, Fang, Kun, Yin, Peng-Fei, Zhao, Meng-Jie |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology |
| الوصف: | The excesses in the electron and positron spectra observed by many experiments, such as PAMELA and AMS-02, have sparked significant theoretical investigation. It is not easy to distinguish the two primary hypotheses dark matter annihilation/decay and pulsars from the spectral features. Should pulsars be the source of this excess, the expected variability in their distribution may introduce distinct irregularities in the positron energy spectrum. In this study, we use an irregularity estimator to detect these potential features in the positron energy spectrum of AMS-02. Our analysis of the current AMS-02 data reveals these spectral irregularities with a statistical significance of $1.75\sigma$. However, our projection indicates that, with AMS-02 data collected over a period of 20 years, such irregularities could be identified with a confidence level of $3\sigma$ level in 71\% of our simulations. Comment: 6 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2402.15149 |
| رقم الأكسشن: | edsarx.2402.15149 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |