论文标题
D3-Brane的额外$ W $ -BOSON质量
Extra $W$-Boson Mass from a D3-Brane
论文作者
论文摘要
通过最近对$ W $ -Boson质量的CDF测量的动机，我们研究了基于字符串的粒子物理模型，这些模型可以适应与标准模型的偏差。我们考虑了一个F理论的肠道，其中可见的扇形在相交的7个抗体上实现，而额外的部门状态来自Yukawa点附近的探针D3-Brane。 D3-Brane Worldvolume自然会意识到与Higgs混合的强烈耦合扇区。在某些额外部门状态仅从希格斯vevs获得质量的极限中，这导致对$ρ$参数的贡献太大，但是由于D3-Brane与7-Brane堆栈分开，因此这种效果被抑制，从而导致O（1）-O（10）-O（10）Tev tev scale a tev scale scale scale scale scale tece afore cable calive coption to $ $ρ$ cdf cdf cdf cdf cdf cdf cdf。我们还估计了对斜力electroweak参数$ s $的贡献，并发现它与现有约束兼容。这还导致了其他签名，包括O（1）-O（10）TEV范围内的双孔共振（以及其他Diboson最终状态）。
Motivated by the recent CDF measurement of the $W$-boson mass, we study string-based particle physics models which can accommodate this deviation from the Standard Model. We consider an F-theory GUT in which the visible sector is realized on intersecting 7-branes, and extra sector states arise from a probe D3-brane near an E-type Yukawa point. The D3-brane worldvolume naturally realizes a strongly coupled sector which mixes with the Higgs. In the limit where some extra sector states get their mass solely from Higgs vevs, this leads to a contribution to the $ρ$ parameter which is too large, but as the D3-brane is separated from the 7-brane stack, this effect is suppressed, leading to O(1) - O(10) TeV scale extra sector states and a correction to $ρ$ which would be in accord with the CDF result. We also estimate the contribution to the oblique electroweak parameter $S$, and find that it is compatible with existing constraints. This also leads to additional signatures, including diphoton resonances (as well as other diboson final states) in the O(1) - O(10) TeV range.
