Search results for "Nuclear modification"
showing 10 items of 36 documents
Dielectron production in proton-proton and proton-lead collisions at √sNN=5.02TeV
2020
The first measurements of dielectron production at midrapidity (|ηe| < 0.8) in proton–proton and proton–lead collisions at √sNN = 5.02 TeV at the LHC are presented. The dielectron cross section is measured with the ALICE detector as a function of the invariant mass mee and the pair transverse momentum pT, ee in the ranges mee < 3.5 GeV/c2 and pT, ee < 8 GeV/c, in both collision systems. In proton–proton collisions, the charm and beauty cross sections are determined at midrapidity from a fit to the data with two different event generators. This complements the existing dielectron measurements performed at √s = 7 and 13 TeV. The slope of the √s dependence of the three measurements is…
"Table 8" of "Neutral pion and $\eta$ meson production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV"
2018
Nuclear modification factor R_AA of $\eta$ produced in 20-50% central Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV at mid-rapidity, T_AA uncertainty of 3.3% and uncertainty of \sigma_{inel} of 3.9% included in systematic uncertainties.
"Table 7" of "Neutral pion and $\eta$ meson production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV"
2018
Nuclear modification factor R_AA of $\eta$ produced in 0-10% central Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV at mid-rapidity, T_AA uncertainty of 3.25% and uncertainty of \sigma_{inel} of 3.9% included in systematic uncertainties.
"Table 31" of "K$^{*}(892)^{0}$ and $\phi(1020)$ meson production at high transverse momentum in pp and Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = …
2017
Nuclear modification factor of average $K^{*0}$ and $\overline{K^{*0}}$ as a function of $p_{\rm T}$ for 5-10$\%$ in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76~{\rm TeV}$.
"Table 32" of "K$^{*}(892)^{0}$ and $\phi(1020)$ meson production at high transverse momentum in pp and Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = …
2017
Nuclear modification factor of average $K^{*0}$ and $\overline{K^{*0}}$ as a function of $p_{\rm T}$ for 20-30$\%$ centrality in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76~{\rm TeV}$.
"Table 33" of "K$^{*}(892)^{0}$ and $\phi(1020)$ meson production at high transverse momentum in pp and Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = …
2017
Nuclear modification factor of average $K^{*0}$ and $\overline{K^{*0}}$ as a function of $p_{\rm T}$ for 40-50$\%$ centrality in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76~{\rm TeV}$.
"Table 30" of "K$^{*}(892)^{0}$ and $\phi(1020)$ meson production at high transverse momentum in pp and Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = …
2017
Nuclear modification factor of average $K^{*0}$ and $\overline{K^{*0}}$ as a function of $p_{\rm T}$ for 0-5$\%$ centrality in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76~{\rm TeV}$.
"Table 6" of "Neutral pion and $\eta$ meson production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV"
2018
Nuclear modification factor R_AA of $\pi^{0}$ produced in 20-50% central Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV at mid-rapidity, T_AA uncertainty of 3.3% and uncertainty of \sigma_{inel} of 3.9% included in systematic uncertainties.
"Table 5" of "Neutral pion and $\eta$ meson production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV"
2018
Nuclear modification factor R_AA of $\pi^{0}$ produced in 0-10% central Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV at mid-rapidity, T_AA uncertainty of 3.25% and uncertainty of \sigma_{inel} of 3.9% included in systematic uncertainties.
EPPS16 - First nuclear PDFs to include LHC data
2017
We present results of our recent EPPS16 global analysis of NLO nuclear parton distribution functions (nPDFs). For the first time, dijet and heavy gauge boson production data from LHC proton-lead collisions have been included in a global fit. Especially, the CMS dijets play an important role in constraining the nuclear effects in gluon distributions. With the inclusion of also neutrino-nucleus deeply-inelastic scattering and pion-nucleus Drell-Yan data and a proper treatment of isospin-corrected data, we were able to free the flavor dependence of the valence and sea quark nuclear modifications for the first time. This gives us less biased, yet larger, flavor by flavor uncertainty estimates. …