TY  - JOUR
A1  - López Albacete, Javier
A1  - Petersen, Hannah
A1  - Soto Ontoso, Alba
T1  - Symmetric cumulants as a probe of the proton substructure at LHC energies
T2  - Physics Letters B
N2  - We present a systematic study of the normalized symmetric cumulants, NSC(n,m), at the eccentricity level in proton-proton interactions at  within a wounded hot spot approach. We focus our attention on the influence of spatial correlations between the proton constituents, in our case gluonic hot spots, on this observable. We notice that the presence of short-range repulsive correlations between the hot spots systematically decreases the values of  and  in mid- to ultra-central collisions while increases them in peripheral interactions. In the case of  we find that, as suggested by data, an anti-correlation of  and  in ultra-central collisions, i.e. , is possible within the correlated scenario while it never occurs without correlations when the number of gluonic hot spots is set to three. We attribute this fact to the decisive role of correlations on enlarging the probability of interaction topologies that reduce the value of  and, eventually, make it negative. Further, we explore the dependence of our conclusions on the number of hot spots, the values of the hot spot radius and the repulsive core distance. Our results add evidence to the idea that considering spatial correlations between the subnucleonic degrees of freedom of the proton may have a strong impact on the initial state properties of proton-proton interactions [1].
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54785
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547854
SN  - 1873-2445
SN  - 0370-2693
N1  - This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
VL  - 778.2018
SP  - 128
EP  - 136
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -