A Measurement of the proton structure function f2 (x, Q**2)

Ahmed, T.; Aid, S.; Akhundov, Arif A.; Andreev, V.; Andrieu, B.; Appuhn, R.D.; Arpagaus, M.; Babaev, A.; Baehr, J.; Ban, J.

doi:10.1016/0550-3213(95)98236-U

A Measurement of the proton structure function f2 (x, Q**2)

H1

Collaboration

Jan, 1995

32 pages

Published in:

Nucl.Phys.B 439 (1995) 471-502

e-Print:

hep-ex/9503001 [hep-ex]

DOI:

10.1016/0550-3213(95)98236-U

Report number:

DESY-95-006

Experiments:

DESY-HERA-H1

View in:

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Abstract:

A measurement of the proton structure function

F_{\!2}(x,Q~2)

is reported for momentum transfer squared

Q~2

between 4.5

GeV~2

and 1600

GeV~2

and for Bjorken

x

between

1.8\cdot10~{-4}

and 0.13 using data collected by the HERA experiment H1 in 1993. It is observed that

F_{\!2}

increases significantly with decreasing

x

, confirming our previous measurement made with one tenth of the data available in this analysis. The

Q~2

dependence is approximately logarithmic over the full kinematic range covered. The subsample of deep inelastic events with a large pseudo-rapidity gap in the hadronic energy flow close to the proton remnant is used to measure the "diffractive" contribution to

F_{\!2}

.

Note:

32 pages, ps, appended as compressed, uuencoded file Report-no: DESY-95-006

electron p: colliding beams
colliding beams: electron p
electron p: deep inelastic scattering
deep inelastic scattering: electron p
p: structure function
structure function: small-x
x-dependence
dependence: momentum transfer
momentum transfer: high
rapidity: gap

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