Jun 2 – 7, 2019
Carnegie Mellon University
America/New_York timezone

## The DVCS experiment in Hall C at Jefferson Lab with the new NPS detector

Jun 6, 2019, 2:00 PM
30m
Rangos 2

### Rangos 2

Electroweak Probes

### Speaker

Ho San KO (Institut de Physique Nucléaire Orsay)

### Description

Deeply Virtual Compton Scattering (DVCS) is the simplest exclusive process to access Generalized Parton Distributions (GPDs). GPDs encode the correlation between the spacial distribution of partons inside the nucleon and their momentum. An upcoming DVCS experiment in Hall C at Jefferson Lab (Virginia, U.S.A.) will provide the highest precision data in a vast $Q^2$-$x_B$ region accessible by a 11 GeV electron beam. It will further test the leading twist dominance of the observables and get more precise data in lower $x_B$ region needed for the full mapping of GPDs. A Neutral Particle Spectrometer (NPS) is being developed for this experiment. It consists of an electromagnetic calorimeter made of 1080 PbWO4 crystals. We will present the status of the detector R&D and construction, as well as simulation results of its performance.

Early Consideration Yes Yes

### Primary author

Ho San KO (Institut de Physique Nucléaire Orsay)

### Co-author

Dr Carlos MUNOZ CAMACHO (Institut de Physique Nucléaire Orsay)