added pointer to this recent talk:

- Vladimir V. Gligorov,
*Overview of quark flavour results*, talk at ICHEP 2022 (Bologna, 2022) [infn:171923]

added pointer to today’s:

- Riccardo Barbieri,
*A view of flavour physics in 2021*(arXiv:2103.15635)

added pointer to today’s

- Antonio Pich,
*Flavour Dynamics and Violations of the CP Symmetry*, Lectures at the 2017 and 2019 CERN - Latin-American Schools of High-Energy Physics (arXiv:1805.08597)

added pointer to today’s

- Zhi-zhong Xing,
*Flavor structures of charged fermions and massive neutrinos*(arXiv:1909.09610)

added a section (here) with references on $SU(2)$-flavor symmetry emerging on single heterotic M5-branes.

]]>added also this sentence:

Finally, due to confinement, the flavor-changing transitions between quarks are not seen in isolation by collider experiments, but are only seen via the induced decays of the mesons and/or baryons that the quarks are bound in. This way the flavor problem is tied to the confinement problem and hence to the problem of formulating QCD non-perturbatively (e.g. via AdS/QCD).

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added:

Moreover, all observed CP violation is related to flavor-changing interactions.

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added this pointer on the flavor problem in the MSSM:

- Stuart Raby,
*SUSY Flavor Problem*, In:*Supersymmetric Grand Unified Theories*. Lecture Notes in Physics, vol 939 (doi:10.1007/978-3-319-55255-2_7)

I see that, while Isidori’s slide shows all Higgs terms, it actually labels the flavor sector just as Altmannshofer does. So I have reworded a little, as follows:

(Note that Isidori’s slides collect all terms with a Higgs boson factor, including the pure Higgs terms reflecting the cosmological constant and the hierarchy problem, and hence “all the problematic terms”, while the flavor sector proper consists of those terms involving Higgs and quark factors.)

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Ok, I’ve put that in as a note.

]]>Yes, that’s right. Isidori’s slides collect all terms with a Higgs factor under “flavor sector”, while Altmannshofer’s slides split this further into the pure Higgs terms and those involving fermion factors, labelling only the latter as “flavor sector”.

On the one hand, the Higgs is not itself flavored, on the other hand the Higgs coupling between flavors is what makes the latter interesting. So both perspectives make sense.

But with Isidori’s convention all the terms that are related to problems/puzzles with the standard model are collected together. Which seems suggestive.

]]>So what appears in the ’Higgs potential’, $V(\phi)$, in what you take from Isidori 16 includes what Altmannshofer 14 has as separate from his $V(\phi)$, appearing in the ’flavor sector’?

]]>added this slide from Altmannshofer 14

]]>this exposition here is really good:

- Wolfgang Altmannshofer,
*The Flavor Puzzle*, Aspen 2014 (pdf)

am adding references on “The flavor problem”, such as this nice set of slides:

- Gino Isidori,
*The flavor problem*, 2016 (pdf)

added pointer to today’s

- Fernando Abreu de Souza, Gero von Gersdorff,
*A Random Clockwork of Flavor*(arxiv:1911.08476)

I was looking for an introductory reference to flavor physics that one could point to with a straight face (most of the Lecture notes collected in the entry forget to introduce their reader to the subject…).

Now I finally found one:

But it’s an author-less and title-less and home-less document (truncating its URL to identify the author just gives Forbidden errors).

Googling for sentences from within the document shows there is text overlap with the introduction of

- Gino Isidori, Yosef Nir, Gilad Perez,
*Flavor Physics Constraints for Physics Beyond the Standard Model*(arXiv:1002.0900)

But it’s a small overlap, just on the first two dozen of lines.

So if anyone knows or finds out author/title/date/publication of webhome.weizmann.ac.il/home/yotams/notes/ep1_flavor.pdf, let’s add that iunformation

]]>added pointer to further lecture notes:

Yuval Grossman,

*Introduction to flavor physics*, CERN Yellow Report CERN-2010-002, pp. 111-144 (arXiv:1006.3534)Yuval Grossman, Philip Tanedo,

*Just a Taste: Lectures on Flavor Physics*, Chapter 4 in:*Anticipating the Next Discoveries in Particle Physics (TASI 2016)*(arXiv:1711.03624, doi:10.1142/9789813233348_0004)

added a Properties-section with mentioning of a) flavour anomalies and b) geometric engineering of flavour by D8-branes.

But the entry still remains a stub.

]]>added basic pointers to realization of flavour physics in intersecting D-brane models:

geometric engineering of flavour physics in intersecting D-brane models (AdS/QCD) was originally understood in

- Andreas Karch, Emanuel Katz,
*Adding flavor to AdS/CFT*, JHEP 0206:043, 2002 (arxiv:hep-th/0205236)

and then developed in detail for QCD in the Sakai-Sugimoto model:

Tadakatsu Sakai, Shigeki Sugimoto,

*Low energy hadron physics in holographic QCD*, Prog.Theor.Phys.113:843-882, 2005 (arXiv:hep-th/0412141)Tadakatsu Sakai, Shigeki Sugimoto,

*More on a holographic dual of QCD*, Prog.Theor.Phys.114:1083-1118, 2005 (arXiv:hep-th/0507073)

added pointer to last week’s

- Monika Blanke,
*Flavour Physics from Present to Future Colliders*(arxiv:1910.10662)

added pointer to:

- Benjamin Grinstein,
*TASI-2013 Lectures on Flavor Physics*(arXiv:1501.05283)

stub entry, for the moment just so as to satisfy links

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