Perspectives on Quark Mass and Mixing Relations
| dc.creator | Hou, George Wei-Shu | |
| dc.date | 1997-07-31 | |
| dc.date | 1997-08-02 | |
| dc.date.accessioned | 2026-07-07T09:03:35Z | |
| dc.date.available | 2026-07-07T09:03:35Z | |
| dc.description | Two down-up perspectives on quark mass-mixing relations are reviewed. The modified Fritzsch path relates $V_{cb}$ and $V_{ub}$ to $M_u$, but has trouble with the low $V_{cb} \simeq 0.04$ value. The modified Wolfenstein path focuses on the change in $V_{ub}$ from $λ^3 { (ca. 1983)} \leadsto λ^4 { (ca. 1994)}$. The relations $m_d/m_s\sim m_s/m_b \sim δ\sim λ^2 \simeq | V_{cb}| \simeq | V_{us}|^2$ and $m_u/m_c\sim m_c/m_t \sim δ^2 \sim λ^4 \sim | V_{ub}|$ suggest a clean separation of the origin of $V_{KM}$: $| V_{us}| \equiv λ$ and $| V_{cb}| \equiv δ$ arise from $M_d$ while $V_{ub} \equiv Bλ^4 e^{-iϕ}$ comes from $M_u$. Five to six parameters might suffice for ten mass-mixing parameters, with $δ$ seemingly the more sensible expansion parameter, while $λ\simeq \sqrt{m_d/m_s}$ is tied empirically to $(M_d)_{11} = 0$. The approximate relations suggest a near weak scale origin of flavor. | |
| dc.description | 16 pages, latex, two eps figures (included). [NOTE ADDED: Talk presented at the Workshop on Masses and Mixings of Quarks and Leptons, University of Shizuoka, Japan, March 19 - 21, 1997] | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9707528 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9707528 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/149063 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Perspectives on Quark Mass and Mixing Relations | |
| dc.type | text |