Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Physics Hints from Flavour   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 status of Beyond Standard
Model searches. The discussion begins with a preliminary review of Standard
Model Effective Field Theories, in which some utility results in theory
matching are presented. The focus then moves to B-meson decay anomalies: after
introducing Lepton Flavour Universality, we discuss the phenomenology of a
specific Standard Model extension by scalar leptoquarks, and also present the
Effective Field Theory framework of Rank-One Flavor Violation, providing a less
detailed but broader picture for the case of neutral-current anomalies.
Finally, we tackle the Standard Model flavour puzzle, describing an attempt to
address charged lepton mass hierarchies in the framework of supersymmetric
modular invariant models of lepton flavour.

30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat