Exclusive photoproduction of lepton pairs at LHC
arXiv:0805.1589 · doi:10.1016/j.nuclphysbps.2008.07.029
Abstract
Exclusive photoproduction of dileptons, gamma p ->l+ l- p, will be measured in ultraperipheral collisions at LHC. The mechanism where the lepton pair comes from a heavy timelike photon radiated from a quark interferes with the pure QED process gamma gamma ->l+ l- As an analog of deeply virtual Compton scattering, this timelike Compton scattering is a way to study generalized parton distributions in the nucleon or the nucleus. High energy kinematics will enable to focus on gluon distributions. Nuclear effects may be scrutinized in heavy ion collisions.
arXiv commentto be published in the proceedings of the workshop on photon collisions at the LHC, Nucl Phys B Proc Suppl
References in corpus (17)
- Gauge-Invariant Decomposition of Nucleon Spin and Its Spin-Off
- Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
- Generalized Parton Distributions
- Nonforward Parton Distributions
- Unraveling hadron structure with generalized parton distributions
- Impact Parameter Dependent Parton Distributions and Off-Forward Parton Distributions for
- The Physics of Ultraperipheral Collisions at the LHC
- Generalized parton distributions in impact parameter space
- Proof of Factorization for Deeply Virtual Compton Scattering in QCD
- Femto-Photography of Protons to Nuclei with Deeply Virtual Compton Scattering
- Timelike Compton scattering: exclusive photoproduction of lepton pairs
- Testing the handbag contribution to exclusive virtual Compton scattering
- Generalized parton distributions in the deuteron
- Deep Electroproduction of Photons and Mesons on the Deuteron
- Deeply virtual Compton scattering off nuclei
- DVCS on spinless nuclear targets in impulse approximation
- Neutron contribution to nuclear DVCS asymmetries
Cited by in corpus (6)
- NLO corrections to timelike, spacelike and double deeply virtual Compton scattering
- On timelike and spacelike deeply virtual Compton scattering at next to leading order
- Can one measure timelike Compton scattering at LHC ?
- Probing the nucleon's transversity and the photon's distribution amplitude in lepton pair photoproduction
- Leading twist nuclear shadowing, nuclear generalized parton distributions and nuclear DVCS at small x
- On timelike Compton scattering at medium and high energies