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Measurement of the structure functions F2 and FL at low χ

✍ Scribed by V. Arkadov

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
215 KB
Volume
79
Category
Article
ISSN
0920-5632

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✦ Synopsis

A preliminary measurement of the proton structure function F2 is presented for momentum transfers squared 2 < Q2 _< 120 GeV ~ and for Bjorken-x values 3 -10 -5 < x < 0.1. The longitudinal proton structure function FL is determined for low x values in the range of 3 < Q2 < 35 GeV 2, using two independent methods. The analysis is based on data collected by the HERA experiment H1 in 1997, with a luminosity of 15 pb -1 for Q2 > 10 GeV 2 and of 2 pb -1 taken in a dedicated run for Q2 < 10 GeV 2. This measurement uses in the low Q2 region the new backward silicon tracker. The accuracy is by nearly a factor of two better than previous results.

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