G. Alexeev

activity

19992024

most citedThe Upgraded D0 Detector

611 citations · 10.4k across the 228 of their papers we have counts for

collaborators

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219 papers · 1 filter

hep-ex2024

Up and Down Quark Structure of the Proton

D0 Collaboration

We measure proton structure parameters sensitive primarily to valence quarks using 8.6 fb $^{- 1}$ of data collected by the D0 detector in $s = 1.96$ TeV $p p ˉ$ collisions a…

hep-ex2023

Transverse-spin-dependent azimuthal asymmetries of pion and kaon pairs produced in muon-proton and muon-deuteron semi-inclusive deep inelastic scattering

The COMPASS Collaboration

A set of measurements of azimuthal asymmetries in the production of pairs of identified hadrons in deep-inelastic scattering of muons on transversely polarised $^{6}$ LiD (deuteron) a…

hep-ex2022★ 1 cited

Spin Density Matrix Elements in Exclusive $ρ^{0}$ Meson Muoproduction

G. D. Alexeev, M. G. Alexeev, C. Alice +186

We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $ρ^{0}$ meson muoproduction at COMPASS using 160~GeV/ $c$ polarised $μ^{+}$ and $μ^{-}$ beams im…

hep-ex2021

Comparison of $pp$ and $p p ˉ$ differential elastic cross sections and observation of the exchange of a Colorless $C$ -odd gluonic compound

C. Royon

We describe the discovery of the colorless $C$ -odd gluonic compound, the odderon, by the D0 and TOTEM Collaborations by comparing elastic differential cross sections measured in $p…

hep-ex2021★ 23 cited

The exotic meson $π_{1} (1600)$ with $J^{P C} = 1^{-+}$ and its decay into $ρ (770) π$

M. G. Alexeev, G. D. Alexeev, A. Amoroso +192

We study the spin-exotic $J^{P C} = 1^{-+}$ amplitude in single-diffractive dissociation of 190 GeV $/ c$ pions into $π^{-} π^{-} π^{+}$ using a hydrogen target and confirm the $π_1(1600) \to…

hep-ex2021

Probing transversity by measuring $Λ$ polarisation in SIDIS

M. G. Alexeev, G. D. Alexeev, A. Amoroso +196

Based on the observation of sizeable target-transverse-spin asymmetries in single-hadron and hadron-pair production in Semi-Inclusive measurements of Deep Inelastic Scattering (SID…

hep-ex2021★ 42 cited

Conceptual design of the Spin Physics Detector

V. M. Abazov, V. Abramov, L. G. Afanasyev +291

The Spin Physics Detector, a universal facility for studying the nucleon spin structure and other spin-related phenomena with polarized proton and deuteron beams, is proposed to be…

hep-ex2021★ 76 cited

PANDA Phase One

G. Barucca, F. Davì, G. Lancioni +421

The Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, provides unique possibilities for a new generation of hadron-, nuclear- and atomic physics experiments. T…

hep-ex2020★ 12 cited

Spin Density Matrix Elements in Exclusive $ω$ Meson Muoproduction $^{*}$

M. G. Alexeev, G. D. Alexeev, A. Amoroso +197

We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $ω$ meson muoproduction on the proton at COMPASS using 160 GeV/ $c$ polarised $μ^{+}$ and $ μ^{…

hep-ex2020★ 7 cited

Study of the normalized transverse momentum distribution of $W$ bosons produced in $p p ˉ$ collisions at $s = 1.96$ TeV

D0 Collaboration

We present a study of the normalized transverse momentum distribution of $W$ bosons produced in $p p ˉ$ collisions, using data corresponding to an integrated luminosity of 4.35…

hep-ex2020★ 4 cited

Studies of $X (3872)$ and $ψ (2 S)$ production in $p p ˉ$ collisions at 1.96 TeV

D0 Collaboration

We present various properties of the production of the $X (3872)$ and $ψ (2 S)$ states based on 10.4 fb $^{- 1}$ collected by D0 experiment in Tevatron $p p ˉ$ collisions at $\sqrt{s…

hep-ex2019★ 9 cited

Contribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS

J. Agarwala, M. G. Alexeev, G. D. Alexeev +203

Hadron leptoproduction in Semi-Inclusive measurements of Deep-Inelastic Scattering (SIDIS) on unpolarised nucleons allows one to get information on the intrinsic transverse momentu…

hep-ex2019★ 12 cited

Properties of $Z_{c}^{\pm} (3900)$ produced in $p p ˉ$ collision

D0 Collaboration

We study the production of the exotic charged charmonium-like state $Z_{c}^{\pm} (3900)$ in $p p ˉ$ collisions through the sequential process $ψ(4260) \rightarrow Z_c^{\pm}(3900) π…

hep-ex2019★ 24 cited

Measurement of the cross section for hard exclusive $π^{0}$ leptoproduction

M. G. Alexeev, G. D. Alexeev, A. Amoroso +199

We report on a measurement of hard exclusive $π^{0}$ muoproduction on the proton by COMPASS using 160 GeV/ $c$ polarised $μ^{+}$ and $μ^{-}$ beams of the CERN SPS impinging on a liquid hy…

hep-ex2018★ 22 cited

Measurement of $P_{T}$ -weighted Sivers asymmetries in leptoproduction of hadrons

M. G. Alexeev, G. D. Alexeev, A. Amoroso +209

The transverse spin asymmetries measured in semi-inclusive leptoproduction of hadrons, when weighted with the hadron transverse momentum $P_{T}$ , allow for the extraction of importan…

hep-ex2018★ 42 cited

Letter of Intent: A New QCD facility at the M2 beam line of the CERN SPS (COMPASS++/AMBER)

B. Adams, C. A. Aidala, R. Akhunzyanov +263

A New QCD facility at the M2 beam line of the CERN SPS COMPASS++/AMBER

hep-ex2018★ 76 cited

Light isovector resonances in $π^{-} p \to π^{-} π^{-} π^{+} p$ at 190 GeV/ $c$

M. Aghasyan, M. G. Alexeev, G. D. Alexeev +221

We have performed the most comprehensive resonance-model fit of $π^{-} π^{-} π^{+}$ states using the results of our previously published partial-wave analysis (PWA) of a large data set of…

hep-ex2018★ 47 cited

Transverse Extension of Partons in the Proton probed by Deeply Virtual Compton Scattering

R. Akhunzyanov, M. G. Alexeev, G. D. Alexeev +223

We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/ $c$ polarized $μ^{+}$ and $μ^{-}$ beams of the CERN SPS impinging on…

hep-ex2018★ 15 cited

K $^{-}$ over K $^{+}$ multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy

R. Akhunzyanov, M. G. Alexeev, G. D. Alexeev +207

The K $^{-}$ over K $^{+}$ multiplicity ratio is measured in deep-inelastic scattering, for the first time for kaons carrying a large fraction $z$ of the virtual-photon energy. The d…

hep-ex2018

First measurement of transverse-spin-dependent azimuthal asymmetries in the Drell-Yan process

Bakur Parsamyan

The COMPASS experiment at CERN, as part of its programme addresses the exploration of the transverse spin structure of the nucleon by measuring spin (in)dependent azimuthal asymmet…

hep-ex2017★ 10 cited

Measurement of the Effective Weak Mixing Angle in $p p ˉ \to Z / γ^{*} \to ℓ^{+} ℓ^{-}$ Events

D0 Collaboration

We present a measurement of the effective weak mixing angle parameter $sin^{2} θ_{eff}^{ℓ}$ , in $p p ˉ \to Z / γ^{*} \to μ^{+} μ^{-}$ events at a center of mass ener…

hep-ex2017★ 28 cited

Longitudinal double-spin asymmetry $A_{1}^{p}$ and spin-dependent structure function $g_{1}^{p}$ of the proton at small values of $x$ and $Q^{2}$

M. Aghasyan, R. Akhunzyanov, M. G. Alexeev +225

We present a precise measurement of the proton longitudinal double-spin asymmetry $A_{1}^{p}$ and the proton spin-dependent structure function $g_{1}^{p}$ at photon virtualitie…

hep-ex2017★ 60 cited

Transverse-momentum-dependent Multiplicities of Charged Hadrons in Muon-Deuteron Deep Inelastic Scattering

M. Aghasyan, R. Akhunzyanov, M. G. Alexeev +227

A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaborat…

hep-ex2017★ 24 cited

Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

CDF collaboration, D0 collaboration

The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity diff…

Up and Down Quark Structure of the Proton

Transverse-spin-dependent azimuthal asymmetries of pion and kaon pairs produced in muon-proton and muon-deuteron semi-inclusive deep inelastic scattering

Spin Density Matrix Elements in Exclusive ρ0 Meson Muoproduction

Comparison of pp and ppˉ​ differential elastic cross sections and observation of the exchange of a Colorless C-odd gluonic compound

The exotic meson π1​(1600) with JPC=1−+ and its decay into ρ(770)π

Probing transversity by measuring Λ polarisation in SIDIS

Conceptual design of the Spin Physics Detector

PANDA Phase One

Spin Density Matrix Elements in Exclusive ω Meson Muoproduction ∗

Study of the normalized transverse momentum distribution of W bosons produced in ppˉ​ collisions at s​=1.96 TeV

Studies of X(3872) and ψ(2S) production in ppˉ​ collisions at 1.96 TeV

Contribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS

Properties of Zc±​(3900) produced in ppˉ​ collision

Measurement of the cross section for hard exclusive π0 leptoproduction

Measurement of PT​-weighted Sivers asymmetries in leptoproduction of hadrons

Letter of Intent: A New QCD facility at the M2 beam line of the CERN SPS (COMPASS++/AMBER)

Light isovector resonances in π−p→π−π−π+p at 190 GeV/c

Transverse Extension of Partons in the Proton probed by Deeply Virtual Compton Scattering

K− over K+ multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy

First measurement of transverse-spin-dependent azimuthal asymmetries in the Drell-Yan process

Measurement of the Effective Weak Mixing Angle in ppˉ​→Z/γ∗→ℓ+ℓ− Events

Longitudinal double-spin asymmetry A1p​ and spin-dependent structure function g1p​ of the proton at small values of x and Q2

Transverse-momentum-dependent Multiplicities of Charged Hadrons in Muon-Deuteron Deep Inelastic Scattering

Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

Spin Density Matrix Elements in Exclusive $ρ^{0}$ Meson Muoproduction

Comparison of $pp$ and $p p ˉ$ differential elastic cross sections and observation of the exchange of a Colorless $C$ -odd gluonic compound

The exotic meson $π_{1} (1600)$ with $J^{P C} = 1^{-+}$ and its decay into $ρ (770) π$

Probing transversity by measuring $Λ$ polarisation in SIDIS

Spin Density Matrix Elements in Exclusive $ω$ Meson Muoproduction $^{*}$

Study of the normalized transverse momentum distribution of $W$ bosons produced in $p p ˉ$ collisions at $s = 1.96$ TeV

Studies of $X (3872)$ and $ψ (2 S)$ production in $p p ˉ$ collisions at 1.96 TeV

Properties of $Z_{c}^{\pm} (3900)$ produced in $p p ˉ$ collision

Measurement of the cross section for hard exclusive $π^{0}$ leptoproduction

Measurement of $P_{T}$ -weighted Sivers asymmetries in leptoproduction of hadrons

Light isovector resonances in $π^{-} p \to π^{-} π^{-} π^{+} p$ at 190 GeV/ $c$

K $^{-}$ over K $^{+}$ multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy

Measurement of the Effective Weak Mixing Angle in $p p ˉ \to Z / γ^{*} \to ℓ^{+} ℓ^{-}$ Events

Longitudinal double-spin asymmetry $A_{1}^{p}$ and spin-dependent structure function $g_{1}^{p}$ of the proton at small values of $x$ and $Q^{2}$