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Hard probes of heavy-ion collisions

Project description

Characterising quark–gluon collisions after the Big Bang

As far as we know, everything in our universe is made of only 12 fundamental matter particles and four fundamental force particles. Their combinations enable our physical, chemical and biological world, and it all started with the Big Bang. For a few millionths of a second afterward, way before life as we know it was formed, the universe was filled with a very hot, dense soup dominated by quarks (matter particles) and gluons (carriers of the strong force), the so-called quark–gluon plasma (QGP). With the support of the Marie Skłodowska-Curie Actions programme, the HPOFHIC project is using experimental and computational methods to better understand how colliding high-energy quarks and gluons behaved in the QGP.

Objective

Heavy-ion collisions at collider energies are performed in order to produce and study QCD matter at high temperature, the quark-gluon plasma (QGP). Such an extreme state of matter is believed to have existed during the first microseconds after the Big Bang. The QGP and properties of strong force can be probed on a variety of length scales by jets, collimated sprays
of particles originating from scattered quarks and gluons. The intent of this proposal is to study how high-energy quarks and gluons interact with the QGP and to better understand the mechanism of energy loss as they traverse the QGP. The investigators will focus on studies of jet substructure using contemporary substructure techniques as well as exploiting the role of flavour, jets size, and path-length dependence using new probes involving boosted objects. The project includes both experimental measurements and phenomenological investigations using existing models and their improvement.

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Coordinator

UNIVERZITA KARLOVA
Net EU contribution
€ 156 980,64
Address
Ovocny trh 560/5
116 36 Praha 1
Czechia

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Region
Česko Praha Hlavní město Praha
Activity type
Higher or Secondary Education Establishments
Links
Other funding
€ 0,00