Inclusive and semi-inclusive deeply inelastic lepton-hadron scattering in next-to-leading order perturbative QCD
Tekijät
Päivämäärä
2023Tekijänoikeudet
© The Author(s)
Työssä lasketaan rakennefunktiot ja vaikutusalat inklusiiviselle ja semi-inklusiiviselle
syvälle epäelastiselle sironnalle Kvanttiväridynamiikan (QCD) häiriöteorian alinta
seuraavassa kertaluvussa. Laskennassa käytetään dimensionaalista regularisointia ja renormalisaatio tehdään MS skeeman mukaan. Laskettuja vaikutusaloja ja
muutamaa saatavilla olevaa kokeellisesti määritettyä partonitiheysfunktio- ja fragmentaatiofunktiokokoelmaa käytetään sitten elektroni-protoni sironnassa syntyvien
varattujen pionien multiplisiteettien numeeriseen laskemiseen. Saatuja tuloksia verrataan HERMES-kokeen tuloksiin. Eri fragmentaatiofunktiokokoelmille lasketut
multiplisiteetit vastaavat vaihtelevalla menestyksellä HERMES-kokeen tuloksia. The structure functions and cross sections of inclusive and semi-inclusive deeply
inelastic lepton-hadron scattering are calculated at next-to leading order perturbative Quantum Chromodynamics (QCD). Calculations are done using dimensional
regularization and renormalization in the MS scheme. These cross sections are then
used along with several available experimentally determined parton density function sets and fragmentation function sets to numerically calculate multiplicities for
charged pions produced in electron-proton scattering. These numerical multiplicities
are compared with those measured at the HERMES experiment. The calculated
multiplicities of the different fragmentation function sets agree with the HERMES
results to a varying degree.
Asiasanat
Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Pro gradu -tutkielmat [29743]
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Modelling the underlying event in photon-initiated processes
Butterworth, Jonathan Mark; Helenius, Ilkka; Juan, Castella Juan Jose; Pattengale, Bradley; Sanjrani, Shahzad; Wing, Matthew (Stichting SciPost, 2024)Modelling the underlying event in high-energy hadronic collisions is important for physics at colliders. This includes lepton colliders, where low-virtuality photons accompanying the lepton beam(s) may develop hadronic ... -
Rapidity gap distribution of diffractive small-xp events at HERA and at the EIC
Lappi, Tuomas; Le, Anh Dung; Mäntysaari, Heikki (American Physical Society (APS), 2023)We use the Kovchegov-Levin equation to resum contributions of large invariant mass diffractive final states to diffractive structure functions in the dipole picture of deep inelastic scattering. For protons we use a ... -
Factorization of the soft gluon divergence from the dipole picture deep inelastic scattering cross sections at next-to-leading order
Ducloue, B.; Hänninen, H.; Lappi, T.; Zhu, Y. (Sissa, 2019)We use a factorization scheme, analogous to the one proposed for single inclusive forward hadron production in hadronic collisions, to regularize the soft gluon divergence present in the deep inelastic scattering (DIS) ... -
Factorization of the soft gluon divergence from the dipole picture deep inelastic scattering cross sections at next-to-leading order
Ducloué, Bertrand; Hänninen, Henri; Lappi, Tuomas; Zhu, Yan (Sissa, 2018)We use a factorization scheme analogous to one proposed for single inclusive forward hadron production to factorize the soft gluon divergence present in the deep inelastic scattering cross sections in the dipole picture ... -
Next-to-leading order perturbative QCD predictions for exclusive J/ψ photoproduction in oxygen-oxygen and lead-lead collisions at energies available at the CERN Large Hadron Collider
Eskola, K. J.; Flett, C. A.; Guzey, V.; Löytäinen, T.; Paukkunen, H. (American Physical Society (APS), 2023)We present predictions for the cross sections of coherent J/ψ photoproduction in lead-lead and oxygen-oxygen ultraperipheral collisions (UPCs) as a function of the J/ψ rapidity at the LHC in the framework of collinear ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.