Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section

Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section

Bibliografiset tiedot
Parent link:	Physics Letters B Vol. 793.— 2019.— [P. 188-194]
Yhteisötekijä:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Muut tekijät:	Akhunzyanov R. R. Ruslan Rustyamovich, Alekseev M. G. Maksim, Burtsev V. E. Vitaly Evgenjevich, Chumakov A. G. Aleksandr Grigorjevich, Dusaev R. R. Renat Ramilyevich, Levchenko E. A. Evgeny Anatolievich, Lyubovitskiy (Lyubovitskij) V. E. Valery Efimovich, Mamon S. A. Sergey Aleksandrovich, Vasilishin B. I. Bogdan Ivanovich
Yhteenveto:	Title screen We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/c polarised μ+ and μ− beams of the CERN SPS impinging on a liquid hydrogen target. We determine the dependence of the average of the measured μ+ and μ− cross sections for deeply virtual Compton scattering on the squared four-momentum transfer t from the initial to the final proton. The slope B of the t-dependence is fitted with a single exponential function, which yields B=(4.3±0.6stat\|sys−0.3+0.1)(GeV/c)−2. This result can be converted into a transverse extension of partons in the proton, 〈r⊥2〉=(0.58±0.04stat\|sys−0.02+0.01±0.04model)fm. For this measurement, the average virtuality of the photon mediating the interaction is 〈Q2〉=1.8(GeV/c)2 and the average value of the Bjorken variable is 〈xBj〉=0.056.
Kieli:	englanti
Julkaistu:	2019
Aiheet:	электронный ресурс труды учёных ТПУ quantum chromodynamics deep inelastic scattering exclusive reactions deeply virtual compton scattering generalized parton distributions proton size COMPASS квантовая хромодинамика глубоконеупругое рассеяние эксклюзивные компетенции рассеяние
Linkit:	https://doi.org/10.1016/j.physletb.2019.04.038
Aineistotyyppi:	Elektroninen Kirjan osa
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661239

Samankaltaisia teoksia

Antiproton over proton and K- over K+ multiplicity ratios at high z in DIS
Julkaistu: (2020)

Probing transversity by measuring Λ polarisation in SIDIS
Julkaistu: (2022)

Measurement of the cross section for hard exclusive pi0 muoproduction on the proton
Julkaistu: (2020)

Double J/ψ production in pion-nucleon scattering at COMPASS
Julkaistu: (2023)

Longitudinal double-spin asymmetry A1p and spin-dependent structure function g1p of the proton at small values of x and Q2
Julkaistu: (2018)

Observation of a Λb0 − Λ¯b0 production asymmetry in proton-proton collisions at √s = 7 and 8 TeV
Julkaistu: (2021)

Search for supersymmetry in proton-proton collisions at 13 TeV in final states with jets and missing transverse momentum
Julkaistu: (2019)

Search for supersymmetry in final states with photons and missing transverse momentum in proton-proton collisions at 13 TeV
Julkaistu: (2019)

Search for supersymmetry in events with a τ lepton pair and missing transverse momentum in proton-proton collisions at s√=13s=13 TeV
Julkaistu: (2018)

Квантовая хромодинамика. Введение в теорию кварков и глюонов пер. с англ.
Tekijä: Индурайн Ф.
Julkaistu: (Москва, Мир, 1986)

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV
Julkaistu: (2021)

Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at sv = 7 and 8 TeV with the ATLAS and CMS experiments
Julkaistu: (2019)

Search for new physics in final states with a single photon and missing transverse momentum in proton-proton collisions at √s=13 TeV
Julkaistu: (2019)

Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
Julkaistu: (2020)

Inclusive search for highly boosted Higgs bosons decaying to bottom quark-antiquark pairs in proton-proton collisions at √s = 13 TeV
Julkaistu: (2020)

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV
Julkaistu: (2021)

Structural Disorder and Electron Transport in Graphene at Low Temperatures
Julkaistu: (2017)

Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at s√=8s=8 TeV
Julkaistu: (2018)

Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at s√=13s=13 TeV
Julkaistu: (2018)

Photon spectrum and polarization for high conversion coefficient in the Compton backscattering process
Julkaistu: (2017)

Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV
Julkaistu: (2019)

Search for a W′ boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
Julkaistu: (2019)

Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV
Julkaistu: (2019)

Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV
Julkaistu: (2021)

Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV
Julkaistu: (2020)

Search for a low-mass τ−τ+ resonance in association with a bottom quark in proton-proton collisions at √s = 13 TeV
Julkaistu: (2019)

Inclusive search for supersymmetry in pp collisions at √s=13 TeV using razor variables and boosted object identification in zero and one lepton final states
Julkaistu: (2019)

Search for top squarks decaying via four-body or chargino-mediated modes in single-lepton final states in proton-proton collisions at s√=13s=13 TeV
Julkaistu: (2018)

Search for the associated production of the Higgs boson and a vector boson in proton-proton collisions at √s = 13 TeV via Higgs boson decays to τ leptons
Julkaistu: (2019)

Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at vs = 13 TeV
Julkaistu: (2019)

Dependence of inclusive jet production on the anti-kT distance parameter in pp collisions at √s = 13 TeV
Julkaistu: (2020)

Measurements of tt¯ differential cross sections in proton-proton collisions at √s=13 TeV using events containing two leptons
Julkaistu: (2019)

Simulation of enhanced optical trapping in a perforated dielectric microsphere amplified by resonant energy backflow
Tekijä: Geints Yu. E.
Julkaistu: (2022)

Search for new physics in top quark production with additional leptons in proton-proton collisions at √s = 13 TeV using effective field theory
Julkaistu: (2021)

Search for new particles decaying to a jet and an emerging jet
Julkaistu: (2019)

Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state of two muons and two τ leptons in proton-proton collisions at s√=13s=13 TeV
Julkaistu: (2018)

Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at √s = 13 TeV
Julkaistu: (2019)

Measurement of the inelastic proton-proton cross section at s√=13s=13 TeV
Julkaistu: (2018)

Search for contact interactions and large extra dimensions in the dilepton mass spectra from proton-proton collisions at √s=13 TeV
Julkaistu: (2019)

Search for charged Higgs bosons in the H± → τ±ντ decay channel in proton-proton collisions at √s=13 TeV
Julkaistu: (2019)