A. Derevshchikov - Academia.edu (original) (raw)

Papers by A. Derevshchikov

Research paper thumbnail of Table 5

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 4

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 6

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 3

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 5

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 4

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 2

SERPUKHOV, POLARIZED TARGET.

Research paper thumbnail of Polarization Measurements in pi+ p, K+ p and p p Elastic Scattering at 45-GeV/c and Comparison with Regge Phenomenology

SERPUKHOV, POLARIZED TARGET.

Research paper thumbnail of Measurements of the Spin Rotation Parameter R in p p and pi+ p Elastic Scattering at 45-GeV/c

SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLL... more SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLLABORATION), INTERNATIONAL CONFERENCE ON ELEMENTARY PARTICLES, PALERMO 1975, ARE USED FOR THE POLARIZATION.

Research paper thumbnail of Measurement of the Proton Proton Total Cross-Section and Small Angle Elastic Scattering at ISR Energies

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 8

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of A Feasibility Experiment at Rhic to Measure the Analyzing Power for Drell-Yan Production (Andy)

Large transverse single spin asymmetries (SSA) were measured for pions produced in p↑p-collisions... more Large transverse single spin asymmetries (SSA) were measured for pions produced in p↑p-collisions up to RHIC energies. Sizeable SSA were also found in semiinclusive deep inelastic scattering (SIDIS). Theory can explain such spin effects by going beyond collinear leading-twist perturbative QCD (pQCD) to include transverse momentum dependent (TMD) distribution and fragmentation functions. One of the most interesting TMDs is the Sivers function, which provides information on the correlation between the transverse spin of the nucleon and the transverse momentum distributions of the partons in the nucleon. It is particularly intriguing that theory predicts the Sivers function will change sign from SIDIS to Drell-Yan (DY) production. A N DY is aiming to test that prediction and to establish requirements for future upgrades at RHIC to study DY production. The experiment configuration, achievements to date, status and plans are discussed.

Research paper thumbnail of Addendum to the proposal ISRC-74-38 : a hunt for charmed particles

Research paper thumbnail of Elastic Scattering of pi+- p, K+- p, p p and anti-p p at 40-GeV/c

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Production of nucleon resonances by single diffraction dissociation at the CERN ISR

Physics Letters B, 1975

The single diffraction dissociation process pp ~ (l~+Ir-) p has been studied at the CERN ISR at x... more The single diffraction dissociation process pp ~ (l~+Ir-) p has been studied at the CERN ISR at x/~ = 45 GeV and 0.1 <-t < 0.6 GeV 2. The reaction is dominated by nucleon resonance production: pp ~ pN(1520) and pp ~ pN(1688) with cross-sections (0.25 ± 0.08) mb and (0.56 ± 0.19) mb respectively.

Research paper thumbnail of Experimental observation of a copious yield of electrons with small transverse momenta in pp collisions at high energies

Research paper thumbnail of Polarization measurements in high energy elastic scattering of pions, kaons, protons and antiprotons on protons and comparison with regge phenomenology

Czechoslovak Journal of Physics, 1976

The angular distribution of the polarization in r~-p exhibits the well known non sense double zer... more The angular distribution of the polarization in r~-p exhibits the well known non sense double zero at t =-0.6 (GeV/c) 2. The K-p and ~p results are compatible with exchange degeneracy for Itlr < 0'5 (GeV/c) 2. The energy dependence of the polarization P(t) in n-p and in K+p above 10 GeV/c incident momentum is compatible with interference between Pomeron and Regge poles. On the contrary, the polarization in pp elastic scattering decreases faster than ordinary Regge model predictions. This result can be explained by interference between non flip and flip amplitudes of the Pomeron, leading to negative values for the polarization.

Research paper thumbnail of Measurements of the spin rotation parameterR in high energy elastic scattering and helicity amplitudes at Serpukhov energies

Czechoslovak Journal of Physics, 1976

The spin rotation parameter R in pp and n + p elastic scattering at 45 GeV/c has been measured at... more The spin rotation parameter R in pp and n + p elastic scattering at 45 GeV/c has been measured at the Serpukhov accelerator, for It l ranging from 0.2 to 0.5 (GeV/c) 2. The results are presented, together with previous R measurements at lower energies, and are compared with the predictions of Regge pole models. The equality of the values for R in proton-proton and pion-proton scattering, within the experimental errors, is a test of factorization of the residues. An s-channel helicity amplitude analysis for pion-nucleon scattering at 40 GeV/c is made using all available data, Significant results are obtained for the isoscalar exchange amplitudes. The helicity flip in isoscMar exchange is non negligible. The energy dependence of this amplitude, at 6, 16 and 40 GeV/c, is compared with predictions of Regge pole models.

Research paper thumbnail of Table 1

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 2

SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLL... more SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLLABORATION), INTERNATIONAL CONFERENCE ON ELEMENTARY PARTICLES, PALERMO 1975, ARE USED FOR THE POLARIZATION.

Research paper thumbnail of Table 5

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 4

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 6

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 3

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 5

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 4

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 2

SERPUKHOV, POLARIZED TARGET.

Research paper thumbnail of Polarization Measurements in pi+ p, K+ p and p p Elastic Scattering at 45-GeV/c and Comparison with Regge Phenomenology

SERPUKHOV, POLARIZED TARGET.

Research paper thumbnail of Measurements of the Spin Rotation Parameter R in p p and pi+ p Elastic Scattering at 45-GeV/c

SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLL... more SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLLABORATION), INTERNATIONAL CONFERENCE ON ELEMENTARY PARTICLES, PALERMO 1975, ARE USED FOR THE POLARIZATION.

Research paper thumbnail of Measurement of the Proton Proton Total Cross-Section and Small Angle Elastic Scattering at ISR Energies

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of Table 8

ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 66... more ISR. FNAL NEUTRON BEAM. THIS EXPERIMENT WAS BRIEFLY REPORTED IN C. E. DE HAVEN ET AL., PRL 41, 669 (1978), THE RECORD OF WHICH CONTAINS THE TABULATED DATA;.

Research paper thumbnail of A Feasibility Experiment at Rhic to Measure the Analyzing Power for Drell-Yan Production (Andy)

Large transverse single spin asymmetries (SSA) were measured for pions produced in p↑p-collisions... more Large transverse single spin asymmetries (SSA) were measured for pions produced in p↑p-collisions up to RHIC energies. Sizeable SSA were also found in semiinclusive deep inelastic scattering (SIDIS). Theory can explain such spin effects by going beyond collinear leading-twist perturbative QCD (pQCD) to include transverse momentum dependent (TMD) distribution and fragmentation functions. One of the most interesting TMDs is the Sivers function, which provides information on the correlation between the transverse spin of the nucleon and the transverse momentum distributions of the partons in the nucleon. It is particularly intriguing that theory predicts the Sivers function will change sign from SIDIS to Drell-Yan (DY) production. A N DY is aiming to test that prediction and to establish requirements for future upgrades at RHIC to study DY production. The experiment configuration, achievements to date, status and plans are discussed.

Research paper thumbnail of Addendum to the proposal ISRC-74-38 : a hunt for charmed particles

Research paper thumbnail of Elastic Scattering of pi+- p, K+- p, p p and anti-p p at 40-GeV/c

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Production of nucleon resonances by single diffraction dissociation at the CERN ISR

Physics Letters B, 1975

The single diffraction dissociation process pp ~ (l~+Ir-) p has been studied at the CERN ISR at x... more The single diffraction dissociation process pp ~ (l~+Ir-) p has been studied at the CERN ISR at x/~ = 45 GeV and 0.1 <-t < 0.6 GeV 2. The reaction is dominated by nucleon resonance production: pp ~ pN(1520) and pp ~ pN(1688) with cross-sections (0.25 ± 0.08) mb and (0.56 ± 0.19) mb respectively.

Research paper thumbnail of Experimental observation of a copious yield of electrons with small transverse momenta in pp collisions at high energies

Research paper thumbnail of Polarization measurements in high energy elastic scattering of pions, kaons, protons and antiprotons on protons and comparison with regge phenomenology

Czechoslovak Journal of Physics, 1976

The angular distribution of the polarization in r~-p exhibits the well known non sense double zer... more The angular distribution of the polarization in r~-p exhibits the well known non sense double zero at t =-0.6 (GeV/c) 2. The K-p and ~p results are compatible with exchange degeneracy for Itlr < 0'5 (GeV/c) 2. The energy dependence of the polarization P(t) in n-p and in K+p above 10 GeV/c incident momentum is compatible with interference between Pomeron and Regge poles. On the contrary, the polarization in pp elastic scattering decreases faster than ordinary Regge model predictions. This result can be explained by interference between non flip and flip amplitudes of the Pomeron, leading to negative values for the polarization.

Research paper thumbnail of Measurements of the spin rotation parameterR in high energy elastic scattering and helicity amplitudes at Serpukhov energies

Czechoslovak Journal of Physics, 1976

The spin rotation parameter R in pp and n + p elastic scattering at 45 GeV/c has been measured at... more The spin rotation parameter R in pp and n + p elastic scattering at 45 GeV/c has been measured at the Serpukhov accelerator, for It l ranging from 0.2 to 0.5 (GeV/c) 2. The results are presented, together with previous R measurements at lower energies, and are compared with the predictions of Regge pole models. The equality of the values for R in proton-proton and pion-proton scattering, within the experimental errors, is a test of factorization of the residues. An s-channel helicity amplitude analysis for pion-nucleon scattering at 40 GeV/c is made using all available data, Significant results are obtained for the isoscalar exchange amplitudes. The helicity flip in isoscMar exchange is non negligible. The energy dependence of this amplitude, at 6, 16 and 40 GeV/c, is compared with predictions of Regge pole models.

Research paper thumbnail of Table 1

SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED... more SERPUKHOV, POLARIZED TARGET USED - POLARIZATION AND SPIN ROTATION PARAMETERS PREVIOUSLY PUBLISHED IN A. GAIDOT ET AL., PL 57B 389 (1975) AND 61B, 103 (1976) AND IN J PIERRARD ET AL., PL 57B, 393 (1975) AND 61B, 107 (1976).

Research paper thumbnail of Table 2

SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLL... more SPIN ROTATION PARAMETER R (DSS). THE DATA FROM GAIDOT ET AL., (SACLAY-SERPUKHOV-DUBNA-MOSCOW COLLABORATION), INTERNATIONAL CONFERENCE ON ELEMENTARY PARTICLES, PALERMO 1975, ARE USED FOR THE POLARIZATION.