Measurement of Z0-boson production at large rapidities in Pb–Pb collisions at sNN=5.02TeV

Z-boson production in p-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 8.16 TeV and Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV

“…The production of electroweak bosons at the LHC has already been studied in several collision systems, at various energies and rapidities [19][20][21][22][23][24][25][26][27][28][29][30][31][32]. At midrapidity, the data in different collision systems are generally well described by theoretical calculations both with and without nuclear modification of the PDFs [21][22][23][24][25][26][27][28][29][30][31].…”

“…As a result, their competing effects reduce the final effect of nuclear modifications. However, at larger rapidities and therefore lower x, there are increasingly stronger deviations between calculations with models that either do or do not include nuclear modification of the PDFs [20,31]. The data taken at the LHC are in a kinematic regime in (x, Q 2 ) which is also sensitive to contributions coming from quark flavors such as charm and strange, present as sea quarks in the nucleons [33].…”

Anisotropia azimutal de elétrons de quarks pesados em colisões p-Pb no ALICE

“…3.8, where it is compared to p-Pb and Pb-Pb data from CMS [57]. For p-Pb collisions the agreement between the and antiquarks which undergo elastic scatterings (in contrast to the default model, where only partons from minijets interact) with a partonic cross-section which is controlled by the strong coupling constant and the De-momentum anisotropy via the incoherent parton scatt ings [39].…”

“…There are measurements from the LHC from a wide range of particles, including charged particles, pions, kaons, φ mesons, D mesons, Z and W bosons, J/ψ and much more, with similar conclusions as reported on Refs. [32][33][34][35][36][37][38][39][40][41][42][43] [31]). Figure taken from Ref.…”

“…This is compatible with the picture that the QGP only interacts with colored particles. The ALICE collaboration has also performed similar measurements of electromagnetic probes [39].…”