Determination of the proton structure using data from deep-inelastic scattering at HERA and proton-proton collisions at LHC

Deutsches Elektronen-Synchrotron DESY
Notkestraße 85
22607 Hamburg

Universität Hamburg
Institut für Experimentalphysik
Luruper Chaussee 149
22761 Hamburg

A project proposal for a long-term international study group on the proton structure is presented. The goal of the project is to extract parton distribution functions (PDFs) in a most coherent manner by simultaneously exploiting the data taken at the electron-proton collider HERA at DESY and the data from the proton-proton collider LHC at CERN. As exemplified with the successful HERAPDF approach such a project would profit enormously from the fact that the involved physicists have complete insight into the complex systematics and thus the full potential of the input data. Therefore the project has the capability to improve the quality of the analyses at LHC and to enhance the physics return of the measurements, by delivering robust tools for PDF fits to be used within the experimental activity. A strong collaboration with theorists in the field is another important ingredient of the project. In the long-term, additional relevant data from other experiments may be included as well, to use all possible information and perform global consistency checks. The project is timely and is expected to last over the LHC lifetime, taking advantage of the improving precision of various standard measurements with increasing luminosity. It makes use of the unique position of DESY with three major advantages: home laboratory for HERA collaborations, host of two large ATLAS and CMS groups and a strong theory center for precision QCD calculations. Furthermore, the project is defined such that the collaboration with other experimental and theory groups is exploited and encouraged.

The authors of this proposal are members of the HERAPDF group formed by the H1 and ZEUS collaborations with a strong support from ATLAS and CMS groups in DESY. Other experimental and theory groups will be invited to join the project.

Administrative Coordinator at DESY:

Dr. Katerina Lipka
Deutsches Elektronen-Synchrotron
Notkestr. 85
22607 Hamburg
Office: 1a/601
Tel.: +49-40-8998-1983

Weiterführende Links
application/pdf Sachbericht 2011 (99KB)
application/pdf Sachbericht 2012 (95KB)
application/pdf Sachbericht 2013 (63KB)
application/pdf Schlussbericht 2014 (330KB)