تقرير
Axial-vector charges of the spin $\frac{1}{2}^+$ and spin $\frac{3}{2}^+$ light and charmed baryons in the SU(4) chiral quark constituent model
| العنوان: | Axial-vector charges of the spin $\frac{1}{2}^+$ and spin $\frac{3}{2}^+$ light and charmed baryons in the SU(4) chiral quark constituent model |
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| المؤلفون: | Dahiya, Harleen, Dutt, Suneel, Kumar, Arvind, Randhawa, Monika |
| المصدر: | Eur. Phys. J. Plus 138, 441 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | Following the first clear evidence of the presence of intrinsic charm contribution in the proton, the axial-vector charges of the light and charmed baryons are investigated in the framework of $SU(4)$ chiral constituent quark model after including the explicit contributions from the $u\bar u $, $d\bar d $, $s\bar s $ and $c\bar c $ fluctuations. The axial-vector charges having physical significance correspond to the generators of the $SU(4)$ group with flavor singlet $\lambda^0$, flavor isovector $\lambda^3$, flavor hypercharge $\lambda^8$ and flavor charmed $\lambda^{15}$ combinations of axial-vector current at zero momentum transfer. In contemplation to further understand the $Q^2$ dependence of these charges, we have used the conventionally established dipole form of parametrization. The baryons considered here are the spin $\frac{1}{2}^+$ and spin $\frac{3}{2}^+$ multiplets decomposed further depending on the charm content of baryons. Comment: 37 pages, 6 figures. To appear in The European Physical Journal Plus |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1140/epjp/s13360-023-04058-2 |
| URL الوصول: | http://arxiv.org/abs/2305.02630 |
| رقم الأكسشن: | edsarx.2305.02630 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1140/epjp/s13360-023-04058-2 |
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