Lhcb Definition and 17 Threads

I thought pentaquarks were already considered discovered? https://phys.org/news/2022-07-lhcb-exotic-particles-pentaquark-first-ever.html

The LHCb collaboration at the Large Hadron Collider has developed a new set of rules for naming composite particles bound by the strong force (i.e. hadrons) that are contemplated by existing rules for naming them. This has significant practical relevance to anyone dealing with high energy hadron...

I'm curious to what folks thoughts are on the LHCb muon / electron decay ratio results are, as well as the MicroBooNE (null) results. Do the LHCb results really require a new force as the media seems to report? Do the MicroBooNE results indicate that a sterile heavy neutrino is dead?

One of the Standard Model's rules is that charged leptons (i.e. the electron, muon and tau lepton) are identical to each other in their properties except for their masses (and that their anti-particles are identical to them except for a charge-parity flip). But, in two kinds of rare...

In a recent paper submitted by the LHCb collaboration at arXiv, they have reported a tetraquark state composed of charm quarks and antiquarks. The statistical significance of the data is more than 5σ. The abstract: An article on this paper...

I'm currently reading various papers on the violation of Lepton Flavour Universality in rare B-decays and I would appreciate some help in understanding the methodology for measuring the ratios in these decays. Here is a quote from a recent paper from the LHCb collaboration (p.5): My question...

https://home.cern/about/updates/2018/09/lhcb-experiment-discovers-two-perhaps-three-new-particles http://lhcb-public.web.cern.ch/lhcb-public/Welcome.html#LHCCCKM This is very exciting news! What exactly does it say about the strong interaction?

Greg Bernhardt submitted a new PF Insights post Interview with Niels Tuning, LHCb Run Coordinator Continue reading the Original PF Insights Post.

I want to do a project using machine learning on the calorimeter event data of the LHCb. How can I access this data? Is it very difficult to navigate your way through the source code on your own?

Something curious is going on with these decays. LHCb gives a seminar talk Tuesday next week, a livestream will be available. Edit: See results discussed starting here I'll summarize the current status here. I tried to keep most at the advanced (I)-level, but I don't think that always worked...

Plain old standard model baryons, but 5 at the same time, and with crystal clear peaks in the decay to ##\Xi_c^+ K^-##. Each peak in the figure is a particle never seen before, and the significances of those peaks are about 20 sigma (10 sigma for the 5th one). A broad 6th state might hide around...

A short documentary on the LHCb experiment at CERN, on the quest for the mystery of Antimatter.

This article suggests something was found and that today we will be able to find the paper online. http://www.eurekalert.org/pub_releases/2015-08/uom-ess082615.php I am eager to see what the found and at what significance...asking for extra experiments means that the significance they got was...

Pentaquark are particles made out of 4 quarks and 1 antiquark, unlike mesons (quark+antiquark) and baryons (3 quarks). This is by far not the first claim of a pentaquark discovery, but I think it is the most convincing one so far. We'll see which alternative interpretations will come up in the...

As usual, the interpretation is still unclear, but I think it is an interesting effect. LHCb studied the angular distributions in the decay ##B^0 \to K* \mu \mu## and presented the result at EPS2013. In one variable (called P'5) in two bins, a large deviation was found (3.7 sigma in one bin)...

While we still have no news from Higgs a new discrepancy with the standard model has been spotted by the LHCb experiment: http://profmattstrassler.com/2011/11/16/a-notable-discrepancy-at-the-lhcb-experiment/ I bet next month we'll find Higgs and this discrepancies will go away!

I'm giving a report on the LHCb for a detector physics class. I don't quite understand how b-bbar-pairs are produced at the LHCb. LHCb collides two symmetric proton beams and is supposed to work as a b factory. In many papers concerning the LHCb, for instance...