Jun 24 – 25, 2019
Prague, Czech Republic
Europe/Prague timezone

Intrinsic Charm in Proton

Jun 24, 2019, 3:00 PM
Lecture room 103 (Prague, Czech Republic)

Lecture room 103

Prague, Czech Republic

Czech Technical University in Prague Břehová 7, 115 19 Prague, Czech Republic


Juraj Smiesko (Comenius University (SK))


Despite rather long-term theoretical and experimental study, the hypothesis of the nonzero intrinsic (valence like) heavy quark component of the proton distribution functions has not yet been resolved. The LHC with its 𝑝𝑝 collisions at √𝑠 = 7 − 14 TeV offers new insights into the structure of the proton. Using the first ATLAS data on the associated production of prompt photons and charm-quark jets in 𝑝𝑝 collisions at √𝑠 = 8 TeV the constrain on possible intrinsic charm is determined. The upper limit on intrinsic charm probability 𝑤 < 1.97% is obtained at the 68% confidence level along with predictions for the possible √𝑠 = 13 TeV measurement.

Primary author

Juraj Smiesko (Comenius University (SK))

Presentation materials