Strong interactions Archives – Page 13 of 51

The proton laid bare

What a proton is depends on how you look at it, or rather on how hard you hit it.

ALICE sheds new light on high-p_T suppression

These results demonstrate that with the correct treatment of biases from the parton–parton interactions the observed suppression in Pb–Pb collisions is consistent with results from p–Pb collisio...

New pentaquarks resolved by LHCb

The LHCb data also confirm that the structure previously reported by the collaboration in 2015 has now been resolved into two narrow, overlapping peaks.

Bottomonium suppression in lead–lead collisions

The quarkonium yield is suppressed in heavy-ion collisions when compared with proton–proton collisions because the binding force is screened by the hot and dense medium.

CASTOR calorimetry delves into gluon saturation

This largely unexplored phenomenon is expected to occur when the gluons in a hadron overlap transversally, and is enhanced for hadrons with high atomic numbers.

New measurements shine a light on the proton

The ALICE collaboration has measured the photoproduction of J/ψ mesons.

Λ_c⁺-baryon probes charm-quark hadronisation

This is essential to understand how charm-quark hadronisation is affected by the presence of the quark–gluon plasma.

Suppression of the Λ(1520) resonance in Pb–Pb collisions

Due to their short lifetimes, they decay when the system is still dense and the decay products scatter in the hadron gas, reducing the observed number of decays.