4 pages, 2 figures. To appear in the proceedings of the International Europhysics Conference on High Energy Physics (EPS-HEP2007), Manchester, England, 19-25 July 2007
Flavour will play a crucial role in understanding physics beyond the Standard Model. Progress in developing a future programme to investigate this central area of particle physics has recently passed a milestone, with the completion of the conceptual design report for SuperB, a very high luminosity, asymmetric e+e- collider. This article summarizes the important role of SuperB in understanding new physics in the LHC era.
Jet-flavour identification algorithms are of paramount importance to maximise the physics potential of the Future Circular Collider (FCC). Out of the extensive FCC-ee physics program, flavour tagging is crucial for the Higgs physics program, given the dominance of hadronic decays of the Higgs boson. Highly efficient discrimination of $b$-, $c$-, $s$-, and gluon jets allows access to novel decay modes that cannot be identified at the LHC, adding quantitatively new dimensions to the Higgs physics programme. This contribution presents new jet flavour identification algorithms based on advanced ma…
随着B、K介子和中微子物理实验的进行,味道物理学在今天的粒子物理学中占据了中心地位。我们讨论了这些实验提供的机会,在我们寻找新的物理超越SM,并讨论其互补性对撞机物理。我们专注于罕见的B和K介子衰变,突出显示特定的可观测的示范模式。我们还评论了所谓的B --> pi pi和B --> K pi谜题。此外,我们还简要地讨论了长距离强相互作用的限制作用和一些新的工具,如QCD因式分解和SCET。
Heavy flavour physics provides excellent opportunities to indirectly search for new physics at very high energy scales and to study hadron properties for deep understanding of the strong interaction. The LHCb experiment has been playing a leading role in the study of heavy flavour physics since the start of the LHC operations about ten years ago, and made a range of high-precision measurements and unexpected discoveries, which may have far-reaching implications on the field of particle physics. This review highlights a selection of the most influential physics results on CP violation, rare dec…
Searching for New Physics through correlations of Flavour Observables
即将到来的味道精确时代将允许在不同的新物理场景中发现各种味道违规模式。我们讨论不同的类。标准模型的一个简单扩展是在SM规范群中增加一个U(1)规范对称性,它通常会引入新的味源、CP破坏和右手流。在这样的Z'模型中,各种风味可观察量之间的相关性出现,可以测试和区分不同的Z'场景。一个具有味破坏Z'耦合的具体模型是基于规范群SU(3)_C x SU(3)_L x U(1)_X的331模型。我们还研究了由重中性标量和/或伪标量H^0(A^0)介导的树水平FCNC。此外,还简要讨论了一个额外的近似整体U(2)^3味对称性的含义。最后给出了一个具有矢量费米子和味破坏Z耦合的模型。我们确定了一些不同的约束最小味道违反(CMFV)模型,可以测试和区分这些不同的情况下,不同的观测值之间的相关性。
We study the intersection of flavour and collider physics for Two-Higgs-Doublet models of Type I and II. Drawing from the flavour precision-LHC exotics search complementarity, we also provide a projection of the future sensitivity that can be achieved in light of currently available analyses. On the one hand, we find that the parameter space of the 2HDM can be explored significantly further with more data from the LHC with some complementarity with flavour physics. On the other hand, flavour physics results alongside their projections remain powerful tools to constrain the model space in regio…
在这些诉讼中,我提出了一个个人的角度来看,新的物理(NP)搜索在风味部门的挑战。由于CKM的味道违反机制已经建立了一个非常高的精度,我们知道,物理超越标准模型只能作出贡献次主导。因此,超出标准模型(SM)的任何实际物理模型必须尊重来自味道可观测量(如$b\to s γ$、$B_s\toμ^+μ^-$、$ΔF=2$过程等)的严格约束,在第一步中。在第二步中,有趣的是问一个问题,如果一些偏离SM预测(如μ子的异常磁矩或最近观察到的τ子$B$衰变或$B\to K^*μ^+μ^-$的差异)可以用NP模型来解释,而不违反其他观测值的界限。
This Thesis presents my personal contributions to two distinct fields, namely the recent experimental anomalies in B-meson decays, and the longstanding quest for a theoretical explanation of lepton masses and mixings, under a unifying umbrella: Flavour Physics. The modern view of the Standard Model as an effective theory is motivated, and the dual role of flavour, as a probe of New Physics effects on one side, and as a piece of the puzzle itself on the other, is emphasized. By jointly discussing two physics cases of different nature, I attempt to offer a broader perspective on the current stat…