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BIMSA Integrable Systems Seminar
Factorization in deep inelastic scattering at Bj\"orken limit: Reduction to (1+1)D integrable models.
Factorization in deep inelastic scattering at Bj\"orken limit: Reduction to (1+1)D integrable models.
Organizers
Speaker
Time
Tuesday, April 22, 2025 4:00 PM - 5:00 PM
Venue
A6-101
Online
Zoom 873 9209 0711
(BIMSA)
Abstract
We investigate structure functions in deep inelastic scattering processes (DIS) at Bj\"orken limit
and found that they are factorized into the longitudinal and transversal parts. We see, that the
longitudinal part can be linked to exact form factors calculated earlier in 1+1 dimensional integrable
quantum field theories, such as sine-Gordon model. We extract asymptotic of Form-factors at small
Bj\"orken parameter x and compare it with experimental data of HERA and ZEUS collaborations
on Deep inelastic lepton-proton scattering. We observe the factorization of the structure functions
F2(x, q2) and find out its power behavior on scaling parameter x.
Based on arXiv:2503.11735
and found that they are factorized into the longitudinal and transversal parts. We see, that the
longitudinal part can be linked to exact form factors calculated earlier in 1+1 dimensional integrable
quantum field theories, such as sine-Gordon model. We extract asymptotic of Form-factors at small
Bj\"orken parameter x and compare it with experimental data of HERA and ZEUS collaborations
on Deep inelastic lepton-proton scattering. We observe the factorization of the structure functions
F2(x, q2) and find out its power behavior on scaling parameter x.
Based on arXiv:2503.11735
Speaker Intro
Hrachya Babujian (Babujyan) received his PhD from L. D. Landau Institute of Theoretical Physics in Moscow, where he was PhD student of A.A. Belavin. The Habilitation he get in Yerevan Physics Institute (Alikhanyan National Lab) where he currently holds the title Leading Scientific Researcher. In the 1990’s he was working in Bonn University and Berlin FU where he enjoy the Mathematical Physics group of R. Schrader. He also work in Sao Carlos University (Brazil) in Brookhaven National Lab, Simons Center and Chicago University. H. Babujian’s research interests are in Integrability in 2d statistical models and 1+1 dimensional quantum field theories, 1d spin chains, conformal blocks, form factors and thermodynamics of integrable models. Now his interest is the applications of the exact form factors in 1+3 dimensional lepton-hadron scattering in small Bjorkan x case.