Search results for "2760"
showing 10 items of 1525 documents
"Table 3" of "Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC"
2022
Production cross section of charm-anticharm quark pairs per unity of rapidity at midrapidity $\mathrm{d}\sigma^{\mathrm{c\overline{c}}}/\mathrm{d}y|_{|y| < 0.5}$ in pp collisions at $\sqrt{s} = 2.76$, $5.02$, and $7$ TeV.
Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC
2018
We report the measured transverse momentum ($p_{\rm T}$) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $\sqrt{s_{\rm NN}} = 5.02$ TeV in the kinematic range of $0.15<p_{\rm T}<50$ GeV/$c$ and $|\eta|< 0.8$. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, as well as in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, which is also presented. Spectra from Pb-Pb collisions are presented in nine centrality intervals and are compared to a reference spectrum from pp collisions scaled by the number of binary nucleon-nucleon collisions. For cent…
Measurement of spin-orbital angular momentum interactions in relativistic heavy-ion collisions
2020
The first evidence of spin alignment of vector mesons ($K^{*0}$ and $\phi$) in heavy-ion collisions at the Large Hadron Collider (LHC) is reported. The spin density matrix element $\rho_{00}$ is measured at midrapidity ($|y| <$ 0.5) in Pb-Pb collisions at a center-of-mass energy ($\sqrt{s_{\rm NN}}$) of 2.76 TeV with the ALICE detector. $\rho_{00}$ values are found to be less than 1/3 (1/3 implies no spin alignment) at low transverse momentum ($p_{\rm T} <$ 2 GeV/$c$) for $K^{*0}$ and $\phi$ at a level of 3$\sigma$ and 2$\sigma$, respectively. No significant spin alignment is observed for the $K^0_S$ meson (spin = 0) in Pb-Pb collisions and for the vector mesons in $pp$ collisions. The meas…
"Table 10" of "Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies"
2022
Detector-level Pb--Pb distributions of $z_{\rm g}$ for $R=0.4$ jets with minimum angular separation of subjets $\DeltaR>0.1$ for jets in the range $80 \leq p_{\rm T,jet}^{\rm ch} < 120$ GeV/$c$.
"Table 12" of "Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies"
2022
Detector-level Pb--Pb distributions of $z_{\rm g}$ for $R=0.4$ jets with maximum angular separation of subjets $\DeltaR<0.1$ for jets in the range $80 \leq p_{\rm T,jet}^{\rm ch} < 120$ GeV/$c$.
"Table 11" of "Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies"
2022
Detector-level Pb--Pb distributions of $z_{\rm g}$ for $R=0.4$ jets with minimum angular separation of subjets $\DeltaR>0.2$ for jets in the range $80 \leq p_{\rm T,jet}^{\rm ch} < 120$ GeV/$c$.
"Table 9" of "Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies"
2022
Detector-level Pb--Pb distributions of $z_{\rm g}$ for $R=0.4$ jets with minimum angular separation of subjets $\DeltaR>0$ for jets in the range $80 \leq p_{\rm T,jet}^{\rm ch} < 120$ GeV/$c$.
"Table 20" of "K*(892)^0 and PHI(1020) production in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV"
2015
Yield (dN/dy) of (K*(892)0 + anti-K*(892)0)/2 for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. In the table, the first systematic uncertainty is uncorrelated between centrality intervals, the second is the normalization uncertainty.
"Table 21" of "K*(892)^0 and PHI(1020) production in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV"
2015
Yield (dN/dy) of phi(1020) mesons for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. In the table, the first systematic uncertainty is uncorrelated between centrality intervals and the second is the normalization uncertainty.
"Table 1" of "Measurement of the distributions of event-by-event flow harmonics in lead--lead collisions at sqrt(s_NN)=2.76 TeV with the ATLAS detect…
2014
The relationship between centrality intervals and MEAN(Npart) estimated from the Glauber model.