Search for single vector-like B quark production and decay via B → bH(b b ¯) in pp collisions at √s = 13 TeV with the ATLAS detector ...

Distributions of mlb representing different values of the top-quark decay width (Γt). The bottom panel shows the ratio of alternative widths to the Standard Model prediction.

Nevertheless, mesons decay quite quickly, offering a crucial opportunity for symmetry to be broken. One paper reports on the ...

ATLAS delivers new direct measurement of the top-quark decay width with improved precision. Aug 8, 2019. ATLAS experiment studies fragments of the top quark. Oct 9, 2017.

For decades, physicists sought the Higgs boson: the theorized “God particle” whose alter ego, a field pervading the entire universe, endows matter with mass. In 2012, scientists finally found ...

For about ~20 years, one such example that’s been under investigation is the branching fractions and CP asymmetries of B-mesons, which are quark-antiquark combinations that contain one b or anti ...

Although the quark–gluon plasma at the LHC vanishes after about 10-23 s, scientists can study it by analysing how other particles produced in collisions move through it. The top quark is the heaviest ...

The problem with studying this state of matter is that quarks decay very, very quickly, in just a tiny fraction of a second. The quark-gluon plasma that emerged after the Big Bang only existed for ...

Researchers discovered that sometimes, before the Lambda-b fragments into these byproducts, it transforms into a new particle consisting of five quarks: two up quarks, a down quark, a charm quark and ...