Deeply Virtual Compton Scattering

DVCS: Present and Future Experiments and Results

Experim. results:

H1

ZEUS

Related doc.

Other results
(HERMES, CLAS,...)

Theory:

DVCS predictions

GPD

H1 Results

(Prel) Beam charge asymmetry measurement:

Beam charge azimuthal asymmetry in deeply virtual compton scattering at HERA II

The measurement is performed in the kinematic range:
6.5 < Q2 < 80 GeV2, 30 < W < 140 GeV and |t| < 1 GeV2.
Data 2005-2007: 146 pb-1 of e+ and 145 pb-1 of e-

Beam charge azimuthal asymmetry:

o To access more details and separated figures directly.

DVCS cross section measurement with HERA-II data:

Measurement of Deeply Virtual Compton Scattering and its t-dependence at HERA

The measurement is performed in the kinematic range:
6.5 < Q2 < 80 GeV2, 30 < W < 140 GeV and |t| < 1 GeV2.
Data 2005-2006, Lumi = 145 pb-1 of e+

Phys. Lett. B 659 (2008) 796, DESY-07-142 and [hep-ex/0709.4114].

Differential Cross section as a function of t

o To access separated figures directly.

DVCS cross section measurement (Full HERA-I statistics): Deeply Virtual Compton Scattering at HERA

Complete HERA I results. Eur. Phys. J. C 44, 1-11 (2005), DESY-05-065 and [hep-ex/0505061].

Corresponding talk and proceedings at DIS05 and talk and [hep-ex/0510031]proceedings of EDS05 (Rencontres de Blois).

The measurement is performed in the kinematic range:
2 < Q2 < 80 GeV2, 30 < W < 140 GeV and |t| < 1 GeV2.
Data 1996-2000, Lumi = 46.5 pb-1 of e+

The first t dependence measurement:

Cross section as a function of Q2 compared to NLO QCD prediction:

o Additional figures

(First) DVCS cross section measurement:

Measurement of Deeply Virtual Compton Scattering at HERA

Phys. Lett. B517 47-58 (2001)
hep-ex/0107005 or DESY 01-093

The measurement is performed in the kinematic range:
2 < Q2 < 20 GeV2, 30 < W < 120 GeV and |t| < 1 GeV2.
Data 1997, Lumi = 8 pb-1 of e+

o More details on the measurement and some more figures.

Locked Internal H1-DVCS

ZEUS Results

DVCS Cross section measurement:

Measurement of Deeply Virtual Compton Scattering at HERA


Phys. Lett. B573 (2003) 46-62, [hep-ex/0305028]

The measurement is performed in the kinematic range:
5 < Q2 < 1000 GeV2, 40 < W < 140 GeV.
Data 1996-2000, Lumi = 95 pb-1 of e+ and 16.7 pb-1 of e-

Related documents
Related talks:

Related Ph.D. thesis:

Other Results

  • HERMES

  • Jefferson Lab: CLAS (Hall B)

  • Jefferson Lab: Spectro(Hall A)

  • COMPASS (CERN)

  • eRHIC (main RHIC page at BNL)
  • Others: