تقرير
Single pion contribution to the hyperfine splitting in muonic hydrogen
| العنوان: | Single pion contribution to the hyperfine splitting in muonic hydrogen |
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| المؤلفون: | Huong, Nguyen Thu, Kou, Emi, Moussallam, Bachir |
| المصدر: | Phys. Rev. D 93, 114005 (2016) |
| سنة النشر: | 2015 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | A detailed discussion of the long-range one-pion exchange (Yukawa potential) contribution to the 2S hyperfine splitting in muonic hydrogen which had, until recently, been disregarded is presented. We evaluate the relevant vertex amplitudes, in particular $\pi^0\mu^+\mu^-$, combining low energy chiral expansions together with experimental data on $\pi^0$ and $\eta$ decays into two leptons. A value of $\Delta{E}^\pi_{HFS}= -(0.09 \pm 0.06)\ \mu\rm{eV}$ is obtained for this contribution. Comment: v2: Expanded and completed version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.93.114005 |
| URL الوصول: | http://arxiv.org/abs/1511.06255 |
| رقم الأكسشن: | edsarx.1511.06255 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.93.114005 |
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