Michele Gallinaro, Francesco Hautman
Prospects and results from the AFP detector in ATLAS
In my talk I will highlight a number of recent developments in particle astrophysics that interface with high-energy physics. A particular focus lies on the importance of hadronic interaction models for the interpretation of Ultra-High Energy Cosmic Ray observations.
The description of collisions involving hadrons has always been a challenging task, especially at nonperturbative scales and the forward phase space. Being at the end of LHC Run 2 an overview of recent measurements and developments in soft QCD and small-x physics at the LHC is presented, together with remaining open questions and an outlook for future studies that are still missing to improve...
I will discuss about the impact of open heavy-flavour data on the gluon and sea quark PDFs in the low x/low Q2 region and the still open problems in the fitting procedure, with examples/considerations from the experience with the PROSA and the ABMP PDF fits.
Jet veto cross section measurements in ATLAS
The talk will present prospects and results from the precise proton-spectrometer (PPS), a new detector born from the collaboration between the CMS and TOTEM experiments at the LHC
The TOTEM experiment, located at the interaction point 5 of the LHC, has measured the total, elastic and inelastic proton-proton cross sections in a centre-of-mass energy range from 2.76 to 13 TeV, mostly in dedicated fills with special beam optics. Most recently, TOTEM has performed a series of detailed measurements at √s = 13 TeV. The total, elastic and inelastic proton-proton cross-sections...
The talk will present an overview of the results on diffraction and exclusive production obtained by the CMS experiment at the LHC
The unintegrated gluon distribution (UGD) encodes the gluon content in the proton in the high-energy domain and gives the probability that a gluon can be emitted by a colliding proton, with given longitudinal momentum fraction and transverse momentum. The UGD, being a nonperturbative quantity, it is not well known and several models for it have been introduced so far.
With installation of new shower counters (HERSCHEL) along the beampipe the sensitivity of the LHCb experiment to the central exclusive production (CEP) has significantly increased. And the dedicated triggers introduced in the early period of Run 2 allowed to extended dataset for the CEP measurements.
The talk will cover the CEP results of LHCb experiment during Run1 and Run2
We will discuss the measurements of exclusive di-photon events at the LHC in pp and Pb Pb runs. these events lead to the best possible sensitivities to quartic anomalous couplings between photons, Z and W bosons. We will also give the sensitivities to the search for axion like particles at high mass.
A future electron-ion collider (EIC) will be a dedicated high-luminosity machine with the capability of unraveling many issues in QCD, including a systematic tomographic mapping of the nucleon's internal structure, investigations of the quark-hadron transition, the onset and dynamics of gluon saturation at low x, and the nature of the nuclear medium. In addition to the wealth of information...