127 citations · 727 across the 27 of their papers we have counts for
23 papers · 1 filter
First Observation of an Exotic Reggeon
G. D. Alexeev, M. G. Alexeev, C. Alice +180
We present new \compass high-statistics measurements of the peripheral production of and pairs in the reactions . For the first t…
Dihadron Transverse-Spin Asymmetries in Muon-Deuteron Deep-Inelastic Scattering
G. D. Alexeev, M. G. Alexeev, C. Alice +168
In 2022, the COMPASS collaboration performed semi-inclusive measurements of deep-inelastic muon-scattering on a transversely polarised deuteron (6LiD) target. From these data, tran…
Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with
G. D. Alexeev, M. G. Alexeev, C. Alice +160
We measured the strange-meson spectrum in the scattering reaction with the COMPASS spectrometer at CERN. Using the world's largest sample of…
Measurement of the hard exclusive muoproduction cross section at COMPASS
G. D. Alexeev, M. G. Alexeev, C. Alice +169
A new and detailed measurement of the cross section for hard exclusive neutral-pion muoproduction on the proton was performed in a wide kinematic region, with the photon virtuality…
High-statistics measurement of Collins and Sivers asymmetries for transversely polarised deuterons
G. D. Alexeev, M. G. Alexeev, C. Alice +183
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons on a transversely pol…
Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of mesons
G. D. Alexeev, M. G. Alexeev, C. Alice +188
The production of vector mesons in deep inelastic scattering is an interesting yet scarsely explored channel to study the transverse spin structure of the nucleon and the related p…
Spin Density Matrix Elements in Exclusive 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 meson muoproduction at COMPASS using 160~GeV/ polarised and beams im…
Double production in pion-nucleon scattering at COMPASS
G. D. Alexeev, M. G. Alexeev, A. Amoroso +191
We present the study of the production of double mesons using COMPASS data collected with a 190 GeV/ beam scattering off NH, Al and W targets. Kinematic distri…
Ba ion trapping by organic submonolayer: towards an ultra-low background neutrinoless double beta decay detector
P. Herrero-Gómez, J. P. Calupitan, M. Ilyn +112
If neutrinos are their own antiparticles, the otherwise-forbidden nuclear reaction known as neutrinoless double beta decay () can occur, with a characteristic lifetime which…
Spin Density Matrix Elements in Exclusive 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 meson muoproduction on the proton at COMPASS using 160 GeV/ polarised and $ μ^{…
Measurement of the cross section for hard exclusive leptoproduction
M. G. Alexeev, G. D. Alexeev, A. Amoroso +199
We report on a measurement of hard exclusive muoproduction on the proton by COMPASS using 160 GeV/ polarised and beams of the CERN SPS impinging on a liquid hy…
Measurement of -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 , allow for the extraction of importan…
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
Longitudinal double-spin asymmetry and spin-dependent structure function of the proton at small values of and
M. Aghasyan, R. Akhunzyanov, M. G. Alexeev +225
We present a precise measurement of the proton longitudinal double-spin asymmetry and the proton spin-dependent structure function at photon virtualitie…
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…
Search for muoproduction of at COMPASS and indication of a new state
M. Aghasyan, R. Akhunzyanov, M. G. Alexeev +224
We have searched for exclusive production of exotic charmonia in the reaction using COMPASS data collected with incoming muons of…
First measurement of transverse-spin-dependent azimuthal asymmetries in the Drell-Yan process
Aghasyan, R. Akhunzyanov, M. G. Alexeev +216
The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190 GeV/, beam and a…
First measurement of the Sivers asymmetry for gluons from SIDIS data
C. Adolph, M. Aghasyan, R. Akhunzyanov +223
The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. It was extracted from measurements of the azimuthal…
Final COMPASS results on the deuteron spin-dependent structure function and the Bjorken sum rule
C. Adolph, M. Aghasyan, R. Akhunzyanov +223
Final results are presented from the inclusive measurement of deep-inelastic polarised-muon scattering on longitudinally polarised deuterons using a LiD target. The data were t…
Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target
C. Adolph, J. Agarwala, M. Aghasyan +223
Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable…
Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high
COMPASS Collaboration, C. Adolph, R. Akhunzyanov +207
We measured the longitudinal double spin asymmetries for single hadron muo-production off protons and deuterons at photon virtuality < 1(GeV/) for transve…
Interplay among transversity induced asymmetries in hadron leptoproduction
Compass Collaboration, C. Adolph, R. Akhunzyanov +206
In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. When only one unpolarized hadron is selected, it exhi…
The Spin Structure Function of the Proton and a Test of the Bjorken Sum Rule
C. Adolph, R. Akhunzyanov, M. G. Alexeev +203
New results for the double spin asymmetry and the proton longitudinal spin structure function are presented. They were obtained by the COMPASS collabora…