The New F_L Measurement from HERA and the Dipole Model

Details The New F_L Measurement from HERA and the Dipole Model The New F_L Measurement from HERA and the Dipole Model

2012-01-30

arxiv.org/abs/1201.6296v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages

Scientific paper

From the new measurement of F_L at HERA we derive fixed-Q^2 averages . We compare these with bounds which are rigorous in the framework of the standard dipole picture. The bounds are sharpened by including information on the charm structure function F_2^(c). Within the experimental errors the bounds are respected by the data. But for 3.5 GeV^2 <= Q^2 <= 20 GeV^2 the central values of the data are close to and in some cases even above the bounds. Data on F_L/F_2 significantly exceeding the bounds would rule out the standard dipole picture at these kinematic points. We discuss, furthermore, how data respecting the bounds but coming close to them can give information on questions like colour transparency, saturation and the dependencies of the dipole-proton cross section on the energy and the dipole size.

Affiliated with

Also associated with

No associations

Rating

The New F_L Measurement from HERA and the Dipole Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The New F_L Measurement from HERA and the Dipole Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The New F_L Measurement from HERA and the Dipole Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-360252