The amplitude A2 of the second-order harmonic modulation of muons from coherent J/psi photoproduction is measured to be -0.194, more than five sigma from zero.
Coherent $\rho^0$ photoproduction in ultra-peripheral Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\rm NN}}} = 2.76$ TeV
6 Pith papers cite this work. Polarity classification is still indexing.
6
Pith papers citing it
abstract
We report the first measurement at the LHC of coherent photoproduction of $\rho^0$ mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for $\rho^0$ production are studied in the $\pi^+ \pi^-$ decay channel at mid-rapidity. The production cross section in the rapidity range $|y|<0.5$ is found to be $\mathrm{d}\sigma/\mathrm{d}y = 425 \pm 10 \, (\mathrm{stat.})$ $^{+42}_{-50} \, (\mathrm{sys.})$ mb. Coherent $\rho^0$ production is studied with and without requirement of nuclear breakup, and the fractional yields for various breakup scenarios are presented. The results are compared with those from lower energies and with model predictions.
citation-role summary
background 2
citation-polarity summary
roles
background 2representative citing papers
A new SuperChic Monte Carlo implementation reproduces the ATLAS-observed rate and kinematic dependence of coincident rho meson and dimuon production in ultraperipheral PbPb collisions.
The rho meson's mass is nearly constant as flavor number increases, but its size grows and it ultimately dissociates due to loss of confinement, not by crossing a threshold.
A review of coherent vector meson photoproduction in ultra-peripheral heavy-ion collisions, centered on two-source interference and the claim that the observed spin patterns probe quantum entanglement analogies.
A suppression factor R_G=0.85 is tuned to F2 and rho photoproduction data and used to predict observables for rho(2S), omega, and phi states via holographic wave functions in the dipole picture.
Ultra-peripheral collisions of heavy ions are reviewed as the energy frontier for photon physics; the paper consolidates a decade of LHC/RHIC results and proposes no new measurement.
citing papers explorer
-
Spin-dependent azimuthal asymmetry of coherent J/$\psi$ photoproduction in hadronic PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.36 TeV
The amplitude A2 of the second-order harmonic modulation of muons from coherent J/psi photoproduction is measured to be -0.194, more than five sigma from zero.
-
Modelling Coincident Particle Production in Ultraperipheral Heavy Ion Collisions
A new SuperChic Monte Carlo implementation reproduces the ATLAS-observed rate and kinematic dependence of coincident rho meson and dimuon production in ultraperipheral PbPb collisions.
-
Chiral symmetry breaking for large "Nf" and the properties of the "rho" meson near the conformal window
The rho meson's mass is nearly constant as flavor number increases, but its size grows and it ultimately dissociates due to loss of confinement, not by crossing a threshold.
-
Probing Quantum Phenomena through Photoproduction in Relativistic Heavy-Ion Collisions
A review of coherent vector meson photoproduction in ultra-peripheral heavy-ion collisions, centered on two-source interference and the claim that the observed spin patterns probe quantum entanglement analogies.
-
Coherent photoproduction of light vector mesons off nuclear targets in the dipole picture
A suppression factor R_G=0.85 is tuned to F2 and rho photoproduction data and used to predict observables for rho(2S), omega, and phi states via holographic wave functions in the dipole picture.
-
Ultra-peripheral Collisions
Ultra-peripheral collisions of heavy ions are reviewed as the energy frontier for photon physics; the paper consolidates a decade of LHC/RHIC results and proposes no new measurement.