Dark Quarks: Dark Matter:

[beecee]

https://phys.org/news/2018-08-dark-quarks.html

Quarks are the smallest particles that we know of. In fact, according to the Standard Model of particle physics, which describes all known particles and their interactions, quarks should be infinitely small. If that's not mind-boggling enough, enter dark quarks – hypothetical particles that have been proposed to explain dark matter, an invisible form of matter that fills the universe and holds the Milky Way and other galaxies together.

Read more at: https://phys.org/news/2018-08-dark-quarks.html#jCp

A Supplementary article: 

https://phys.org/news/2018-08-potential-harbingers-physics-persist-lhc.html

The potential harbingers of new physics persist in LHC data

August 31, 2018, Polish Academy of Sciences

For some time now, researchers have noted several anomalies in the decays of beauty mesons in the data coming in from the LHCb experiment at the Large Hadron Collider. Are they more than just statistical fluctuations? The latest analysis, taking into account so-called long-distance effects in the decays of particles, increases the probability that the anomalies are not an error in the measuring techniques.

While scientists seeking direct traces of new physics try to eliminate all potential new signals in particle collisions, revealing the void predicted by the Standard Model, others looking at other phenomena begin to see increasing anomalous signals in the ocean of data that are unresolved.

Read more at: https://phys.org/news/2018-08-potential-harbingers-physics-persist-lhc.html#jCp

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

 

the paper:

https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-5918-6

Long-distance effects in B→K∗ℓℓB→K∗ℓℓ from analyticity

 

Abstract

We discuss a novel approach to systematically determine the dominant long-distance contribution to B→K∗ℓℓB→K∗ℓℓ decays in the kinematic region where the dilepton invariant mass is below the open charm threshold. This approach provides the most consistent and reliable determination to date and can be used to compute Standard Model predictions for all observables of interest, including the kinematic region where the dilepton invariant mass lies between the J/ψJ/ψ and the ψ(2S)ψ(2S) resonances. We illustrate the power of our results by performing a New Physics fit to the Wilson coefficient C9C9. This approach is systematically improvable from theoretical and experimental sides, and applies to other decay modes of the type B→VℓℓB→Vℓℓ, B→PℓℓB→Pℓℓ and B→VγB→Vγ.

Edited August 31, 2018 by beecee