تقرير
Revisiting Yukawa's Bilocal Field Theory for Composite Scalar Bosons
| العنوان: | Revisiting Yukawa's Bilocal Field Theory for Composite Scalar Bosons |
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| المؤلفون: | Hill, Christopher T. |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Theory |
| الوصف: | Yukawa's old bilocal field theory, with modernization in the treatment of "relative time," can describe a relativistic bound state of chiral fermions. This connects to bosonized effective chiral Lagrangians and the Nambu-Jona-Lasinio (NJL) model, providing a description of the internal dynamics of the bound states. It features a static internal wave-function, $\phi(\vec{r})$, in the center-of-mass frame that satisfies a Schr\"odinger-Klein-Gordon equation with eigenvalues $m^2$. We analyze the "coloron" model (single perturbative massive gluon exchange) which yields a UV completion of the NJL model. This has a BCS-like enhancement of its interaction, $\propto N_c$, the number of colors. It is classically critical, with $g_{critical}$ remarkably close to the NJL quantum critical coupling. Negative eigenvalues for $m^2$ lead to spontaneous symmetry breaking, and the Yukawa coupling of the bound state to constituent fermions is emergent. Comment: 15 pages, 5 figures; v4 REVISED |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2310.14750 |
| رقم الأكسشن: | edsarx.2310.14750 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |