Measurement of deeply virtual Compton scattering and its t-dependence at HERA
Апстракт
A measurement of elastic deeply virtual Compton scattering gamma*p- GT gamma p using e-p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb(-1). The cross section is measured as a function of the virtuality Q(2) of the exchanged photon and the centre-of-mass energy W of the gamma*p system in the kinematic domain 6.5 LT Q(2) LT 80 GeV(2), 30 LT W LT 140 GeV and vertical bar t vertical bar LT 1 GeV(2), where t denotes the squared momentum transfer at the proton vertex. The cross section is determined differentially in t for different Q(2) and W values and exponential t-slope parameters are derived. The measurements are compared to a NLO QCD calculation based on generalised parton distributions. In the context of the dipole approach, the geometric scaling property of the DVCS cross section is studied for different values of t.
Извор:
Physics Letters B, 2008, 659, 4, 796-806
DOI: 10.1016/j.physletb.2007.11.093
ISSN: 0370-2693
WoS: 000253040900009
Scopus: 2-s2.0-38349052973
Колекције
Институција/група
VinčaTY - JOUR AU - Aaron, F. D. AU - Božović-Jelisavčić, Ivanka AU - Mudrinić, Mihajlo AU - Pandurović, Mila AU - Smiljanić, Ivan PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3359 AB - A measurement of elastic deeply virtual Compton scattering gamma*p- GT gamma p using e-p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb(-1). The cross section is measured as a function of the virtuality Q(2) of the exchanged photon and the centre-of-mass energy W of the gamma*p system in the kinematic domain 6.5 LT Q(2) LT 80 GeV(2), 30 LT W LT 140 GeV and vertical bar t vertical bar LT 1 GeV(2), where t denotes the squared momentum transfer at the proton vertex. The cross section is determined differentially in t for different Q(2) and W values and exponential t-slope parameters are derived. The measurements are compared to a NLO QCD calculation based on generalised parton distributions. In the context of the dipole approach, the geometric scaling property of the DVCS cross section is studied for different values of t. T2 - Physics Letters B T1 - Measurement of deeply virtual Compton scattering and its t-dependence at HERA VL - 659 IS - 4 SP - 796 EP - 806 DO - 10.1016/j.physletb.2007.11.093 ER -
@article{ author = "Aaron, F. D. and Božović-Jelisavčić, Ivanka and Mudrinić, Mihajlo and Pandurović, Mila and Smiljanić, Ivan", year = "2008", abstract = "A measurement of elastic deeply virtual Compton scattering gamma*p- GT gamma p using e-p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb(-1). The cross section is measured as a function of the virtuality Q(2) of the exchanged photon and the centre-of-mass energy W of the gamma*p system in the kinematic domain 6.5 LT Q(2) LT 80 GeV(2), 30 LT W LT 140 GeV and vertical bar t vertical bar LT 1 GeV(2), where t denotes the squared momentum transfer at the proton vertex. The cross section is determined differentially in t for different Q(2) and W values and exponential t-slope parameters are derived. The measurements are compared to a NLO QCD calculation based on generalised parton distributions. In the context of the dipole approach, the geometric scaling property of the DVCS cross section is studied for different values of t.", journal = "Physics Letters B", title = "Measurement of deeply virtual Compton scattering and its t-dependence at HERA", volume = "659", number = "4", pages = "796-806", doi = "10.1016/j.physletb.2007.11.093" }
Aaron, F. D., Božović-Jelisavčić, I., Mudrinić, M., Pandurović, M.,& Smiljanić, I.. (2008). Measurement of deeply virtual Compton scattering and its t-dependence at HERA. in Physics Letters B, 659(4), 796-806. https://doi.org/10.1016/j.physletb.2007.11.093
Aaron FD, Božović-Jelisavčić I, Mudrinić M, Pandurović M, Smiljanić I. Measurement of deeply virtual Compton scattering and its t-dependence at HERA. in Physics Letters B. 2008;659(4):796-806. doi:10.1016/j.physletb.2007.11.093 .
Aaron, F. D., Božović-Jelisavčić, Ivanka, Mudrinić, Mihajlo, Pandurović, Mila, Smiljanić, Ivan, "Measurement of deeply virtual Compton scattering and its t-dependence at HERA" in Physics Letters B, 659, no. 4 (2008):796-806, https://doi.org/10.1016/j.physletb.2007.11.093 . .