Theta and Tau, two generations later

Categories: DZero, Energy Frontier
Tags:
Published on: May 22, 2016

How can the Bs0 (“bee sub ess, zero”), or indeed any particle have different lifetimes when decaying into different particles? Getting the right answer to this question started quite some time ago.

http://news.fnal.gov/2016/04/theta-tau-two-generations-later/, by Leo Bellantoni.

Busy bees

Categories: CMS/LHC
Published on: May 15, 2016

Looking for exceptionally heavy particles decay into two Higgs bosons, which would preferentially decay into four B quarks.

http://news.fnal.gov/2016/03/busy-bees/, by Don Lincoln.

An improved Standard Model agrees with new b quark pair data

Categories: CDF
Published on: April 8, 2016

Picture_people_131b

These CDF data are consistent with the Standard Model expectations, and they disfavor the axigluon model with a mass of 100 GeV/c^2.

http://news.fnal.gov/2016/03/improved-standard-model-agrees-new-b-quark-pair-data/, by Andy Beretvas and Pavol Bartos

DZero discovers a new particle consistent with a tetraquark

Categories: Cosmic Frontier, DZero
Published on: March 1, 2016

A new observation of the 4-quark bound state.

http://news.fnal.gov/2016/02/dzero-discovers-a-new-particle-consistent-with-a-tetraquark/, by Dmitri Denisov and Paul Grannis: the co-spokespersons for the DZero experiment.

Lead bottom

Categories: CMS/LHC, Energy Frontier
Tags: , ,
Published on: December 3, 2015

Studying the difference in bottom quark production between proton-proton collisions and lead-lead collisions.

http://www.fnal.gov/pub/today/archive/archive_2015/today15-11-20.html, by Don Lincoln.

Why three?

Categories: CMS/LHC
Published on: October 15, 2015
Quark generations

Is there a fourth generation of quarks? CMS says, “Not yet.”

http://www.fnal.gov/pub/today/archive/archive_2015/today15-10-09.html, by Don Lincoln.

Two Higgs are better than one

Categories: CMS/LHC, Energy Frontier
Published on: April 19, 2015

Can CMS see heavy gravitons, which decay into a pair of Higgs bosons?

http://www.fnal.gov/pub/today/archive/archive_2015/today15-04-10.html, by Don Lincoln.

Two B mesons violate CP

Categories: CDF, Energy Frontier
Published on: July 30, 2014


Measuring CP violation in the decay of neutral hadrons containing b-quarks.

http://www.fnal.gov/pub/today/archive/archive_2014/today14-07-10.html, by Andy Beretvas.

If the top is lopsided, will the bottom be also?

Categories: DZero, Energy Frontier
Published on: July 29, 2014

dzero-14-0120-07D

Using the b-quark system to search for new physics in the t-quark system.

http://www.fnal.gov/pub/today/archive/archive_2014/today14-07-03.html, by Leo Bellantoni.

Double parton interactions – four times the charm!

Categories: DZero, Energy Frontier
Tags:
Published on: June 10, 2014

Every so often two parton-parton interactions can occur in the same collision.

http://www.fnal.gov/pub/today/archive/archive_2014/today14-05-29.html, by Mark Williams.

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