Academic Journal
Measurement of the diffractive longitudinal structure function F(L)(D) at HERA
| Τίτλος: | Measurement of the diffractive longitudinal structure function F(L)(D) at HERA |
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| Συγγραφείς: | Roosen, Robert |
| Συνεισφορές: | Physics, FORMER_Elementary Particle Physics |
| Στοιχεία εκδότη: | Springer Verlag, 2011. |
| Έτος έκδοσης: | 2011 |
| Θεματικοί όροι: | DESY HERA Stor, longitudinal momentum, deep inelastic scattering : inclusive reaction, higher-twist, parton : density, diffraction, color : dipole, p : structure function : longitudinal, 7. Clean energy |
| Περιγραφή: | First measurements are presented of the diffractive cross section I ( )ep( -> )eXY( ) at centre-of-mass energies of 225 and , together with a precise new measurement at of , using data taken with the H1 detector in the years 2006 and 2007. Together with previous H1 data at of , the measurements are used to extract the diffractive longitudinal structure function in the range of photon virtualities and fractional proton longitudinal momentum loss 5Oe10(-'4) x (P) 3Oe10(-'3). The measured is compared with leading twist predictions based on diffractive parton densities extracted in NLO QCD fits to previous measurements of diffractive Deep-Inelastic Scattering and with a model which additionally includes a higher twist contribution derived from a colour dipole approach. The ratio of the diffractive cross section induced by longitudinally polarised photons to that for transversely polarised photons is extracted and compared with the analogous quantity for inclusive Deep-Inelastic Scattering. |
| Τύπος εγγράφου: | Article |
| Γλώσσα: | English |
| Σύνδεσμος πρόσβασης: | https://biblio.vub.ac.be/vubir/measurement-of-the-diffractive-longitudinal-structure-function-fld-at-hera(412814f9-838d-4ebd-90b6-e3b02bd66273).html https://hdl.handle.net/20.500.14017/412814f9-838d-4ebd-90b6-e3b02bd66273 |
| Αριθμός Καταχώρησης: | edsair.od......3848..87d8e485d6f003f70a16ab0e03dec4e2 |
| Βάση Δεδομένων: | OpenAIRE |
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