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19952023
most citedForward Neutral Pion Transverse Single Spin Asymmetries in p+p Collisions at \sqrt{s}=200 GeV

165 citations · 1.6k across the 39 of their papers we have counts for

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33 papers · 1 filter

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 LiD (deuteron) a…

hep-ex2022★ 2 cited

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…

hep-ex2015★ 127 cited

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…

hep-ex2014★ 114 cited

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton

C. Adolph, R. Akhunzyanov, M. G. Alexeev +205

Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high energy muons off tra…

hep-ex2014★ 52 cited

Measurement of the charged-pion polarisability

C. Adolph, R. Akhunzyanov, M. G. Alexeev +210

The COMPASS collaboration at CERN has investigated pion Compton scattering, , at centre-of-mass energy below 3.5 pion masses. The process is embedded in the r…

hep-ex2013★ 68 cited

Hadron Transverse Momentum Distributions in Muon Deep Inelastic Scattering at 160 GeV/

C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +207

Multiplicities of charged hadrons produced in deep inelastic muon scattering off a LiD target have been measured as a function of the DIS variables , , and t…

hep-ex2013★ 10 cited

Study of Σ(1385) and Ξ(1321) hyperon and antihyperon production in deep inelastic muon scattering

C. Adolph, M. Alekseev, V. Yu. Alexakhin +203

Large samples of Λ, Σ(1385) and Ξ(1321) hyperons produced in deep-inelastic muon scattering off a ^6LiD target were collected with the COMPASS experimental setup at CERN. The relat…

hep-ex2012★ 7 cited

D* and D Meson Production in Muon Nucleon Interactions at 160 GeV/c

C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +217

The production of D* and D mesons in inelastic scattering of 160 GeV/c muons off a ^6LiD target has been investigated with the COMPASS spectrometer at CERN for 0.003 (GeV/c)^2 < Q^…

hep-ex2012★ 21 cited

Exclusive rho^0 muoproduction on transversely polarised protons and deuterons

C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +217

The transverse target spin azimuthal asymmetry A_UT in hard exclusive production of rho^0 mesons was measured at COMPASS by scattering 160 GeV/c muons off transversely polarised pr…

hep-ex2012★ 9 cited

Measurement of the Cross Section for High-p_T Hadron Production in Scattering of 160 GeV/c Muons off Nucleons

C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +209

The differential cross section for production of charged hadrons with high transverse momenta in scattering of 160\,GeV/ muons off nucleons at low photon virtualities has been m…

hep-ex2012★ 57 cited

Leading order determination of the gluon polarisation from DIS events with high-p_T hadron pairs

C. Adolph, M. G. Alekseev, V. Yu. Alexakhin +212

We present a determination of the gluon polarisation Delta g/g in the nucleon, based on the longitudinal double-spin asymmetry of DIS events with a pair of large transverse-momentu…

hep-ex2011★ 71 cited

A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

DELPHI Collaboration, J. Abdallah

The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementary methods are used to reconstruct the en…

hep-ex2011★ 10 cited

Search for single top quark production via contact interactions at LEP2

DELPHI Collaboration, J. Abdallah

Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The…

hep-ex2010★ 147 cited

Quark helicity distributions from longitudinal spin asymmetries in muon-proton and muon-deuteron scattering

COMPASS Collaboration

Double-spin asymmetries for production of charged pions and kaons in semi-inclusive deep-inelastic muon scattering have been measured by the COMPASS experiment at CERN. The data, o…

hep-ex2010★ 34 cited

Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

COMPASS Collaboration

Azimuthal asymmetries in semi-inclusive production of positive (h^+) and negative hadrons (h^-) have been measured by scattering 160 GeV muons off longitudinally polarised deuteron…

hep-ex2010★ 42 cited

Study of the Dependence of Direct Soft Photon Production on the Jet Characteristics in Hadronic Z^0 Decays

DELPHI Collaboration, J. Abdallah

An analysis of the direct soft photon production rate as a function of the parent jet characteristics is presented, based on hadronic events collected by the DELPHI experiment at L…

hep-ex2010★ 26 cited

Measurements of CP-conserving Trilinear Gauge Boson Couplings WWV (V = gamma,Z) in e+e- Collisions at LEP2

The DELPHI Collaboration, J. Abdallah

The data taken by DELPHI at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings Delta_g1z, lambda_gamma an…

hep-ex2009★ 3 cited

Correlations between Polarisation States of W Particles in the Reaction e-e+ -> W-W+ at LEP2 Energies 189-209 GeV

The DELPHI Collaboration, J. Abdallah

In a study of the reaction e-e+ -> W-W+ with the DELPHI detector, the probabilities of the two W particles occurring in the joint polarisation states transverse-transverse (TT), lo…

hep-ex2009★ 2 cited

Di-jet production in gamma-gamma collisions at LEP2

The DELPHI Collaboration, J. Abdallah

The production of two high-p_T jets in the interactions of quasi-real photons in e+e- collisions at sqrt{s_ee} from 189 GeV to 209 GeV is studied with data corresponding to an inte…

hep-ex2009★ 73 cited

Search for one large extra dimension with the DELPHI detector at LEP

DELPHI Collaboration, J. Abdallah

Single photons detected by the DELPHI experiment at LEP2 in the years 1997-2000 are reanalysed to investigate the existence of a single extra dimension in a modified ADD scenario w…

hep-ex2009★ 18 cited

A Study of b bbar Production in e+e- Collisions at sqrt(s) = 130-207 GeV

DELPHI Collaboration, J. Abdallah

Measurements are presented of R_b, the ratio of the b bbar cross-section to the q qbar cross-section in e+e- collisions, and the forward-backward asymmetry A^b_FB at twelve energy…

hep-ex2008★ 21 cited

Study of b-quark mass effects in multijet topologies with the DELPHI detector at LEP

The DELPHI Collaboration, J. Abdallah

The effect of the heavy b-quark mass on the two, three and four-jet rates is studied using LEP data collected by the DELPHI experiment at the Z peak in 1994 and 1995. The rates of…

hep-ex2008★ 61 cited

Measurement of the Mass and Width of the W Boson in e+e- Collisions at sqrt{s} = 161 - 209 GeV

The DELPHI Collaboration, J. Abdallah

A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the data collected during the full LEP2 programme (1996-2000). The data sample has…

hep-ex2008★ 3 cited

Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector

DELPHI Collaboration, J. Abdallah

This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few…