New structure function results at low x and high Q2 from HERA
β Scribed by Z. Zhang
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 293 KB
- Volume
- 675
- Category
- Article
- ISSN
- 0375-9474
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β¦ Synopsis
A precise proton structure function F2 at low x is measured. The data is interpreted in the framework of QCD with an extraction of gluon density xg. The charm contribution to F2 is determined in an extended kinematic range. Neutral and charged current crosssections at high Q2 axe also measured and compared with the Standard Model predictions.
π SIMILAR VOLUMES
The proton structure function F2 has been measured in the range 0.045 GeV 2 < Q2 < 0.65 GeV 2 and 6-10 -7 < x < 1.10 -3 using 3.9 pb -1 of ep --~ eX reactions recorded with the ZEUS detector in 1997. The analysis is based on data from the Beam Pipe Calorimeter (BPC) and the Beam Pipe Tracker (BPT).
The Monte Carlo method is used in its grand ensemble variant in combination with CO(2) experimental isotherm data at low (195.5 K) and high temperatures (at 298 and 308 K, i.e., slightly below and above the CO(2) critical temperature, respectively) to characterize microporous carbons and obtain the
## Abstract We have measured the __T__~2~\* signal response associated with cortical activation due to finger motion at 1.5 Tesla. Both thin slice 2D and 3D images show signal intensity changes which vary from 2% to 32% depending on volunteer, echo time, slice thickness, and inβplane resolution. Th