Asratian, A.E.
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A Comparison of the Shapes of pi+ p and p p Diffraction Peaks from 50-GeV/c to 175-GeV/c

The Fermilab Single Arm Spectrometer Group collaboration Ayres, D.S. ; Diebold, Robert E. ; Maclay, G.J. ; et al.
Phys.Rev.Lett. 37 (1976) 548, 1976.
Inspire Record 108238 DOI 10.17182/hepdata.21073

The ratio of π+p to pp elastic scattering is found to be smoothly varying over the range −t=0.03 to 0.4 GeV2. It is well fitted by a single exponential, indicating the forward behavior must be quite similar for the two reactions.

1 data table
Table 1

ACTUALLY THE DATA ARE THE EXPONENTIAL SLOPE OF THE RATIO OF D(SIG)/DT FOR THE TWO REACTIONS.


$\pi^{\pm} p$, $K^{\pm} p$, $pp$ and $p\bar{p}$ Elastic Scattering from 50-GeV/c to 175-GeV/c

The Fermilab Single Arm Spectrometer Group collaboration Ayres, D.S. ; Diebold, R. ; Maclay, G.J. ; et al.
Phys.Rev.D 15 (1977) 3105, 1977.
Inspire Record 110409 DOI 10.17182/hepdata.24653

The differential cross sections for the elastic scattering of π+, π−, K+, K−, p, and p¯ on protons have been measured in the t interval -0.04 to -0.75 GeV2 at five momenta: 50, 70, 100, 140, and 175 GeV/c. The t distributions have been parametrized by the quadratic exponential form dσdt=Aexp(B|t|+C|t|2) and the energy dependence has been described in terms of a single-pole Regge model. The pp and K+p diffraction peaks are found to shrink with α′∼0.20 and ∼0.15 GeV−2, respectively. The p¯p diffraction peak is antishrinking while π±p and K−p are relatively energy-independent. Total elastic cross sections are calculated by integrating the differential cross sections. The rapid decline in σel observed at low energies has stopped and all six reactions approach relatively constant values of σel. The ratio of σelσtot approaches a constant value for all six reactions by 100 GeV, consistent with the predictions of the geometric-scaling hypothesis. This ratio is ∼0.18 for pp and p¯p, and ∼0.12-0.14 for π±p and K±p. A crossover is observed between K+p and K−p scattering at |t|∼0.19 GeV2, and between pp and p¯p at |t|∼0.11 GeV2. Inversion of the cross sections into impact-parameter space shows that protons are quite transparent to mesons even in head-on collisions. The probability for a meson to pass through a proton head-on without interaction inelastically is ∼20% while it is only ∼6% for an incident proton or antiproton. Finally, the results are compared with various quark-model predictions.

31 data tables
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PRODUCTION OF NEUTRAL STRANGE PARTICLES IN ANTI-NEUTRINO N INTERACTIONS CAUSED BY NEUTRAL CURRENTS

Ammosov, V.V. ; Asratian, A.E. ; Gapienko, V.A. ; et al.
JETP Lett. 39 (1984) 209-213, 1984.
Inspire Record 151098 DOI 10.17182/hepdata.2216

None

2 data tables
Table 1

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Experimental Study of Low $P_t$ Hadron Fragmentation

Cutts, D. ; Dulude, R.S. ; Lanou, R.E., Jr. ; et al.
Phys.Rev.Lett. 43 (1979) 319, 1979.
Inspire Record 141771 DOI 10.17182/hepdata.9274

We present high-statistics results on the reactions a+p→c+X where a and c can be any of π±, K±, p, or p¯. The data were taken at 100 and 175 GeV/c incident momenta using the Fermilab Single-Arm Spectrometer operated over the kinematic range 0.2<x<1.0 and pt<~1.0 GeV/c. Investigating the x dependence of the data, we find agreement with a quark-parton picture, namely the cross sections have a power-law behavior in 1−x independent of pbeam and pt.

75 data tables
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Measurement of $\pi^{\pm}$p Backward Elastic Scattering Between 30 GeV/c and 90 GeV/c

Baker, W.F. ; Eartly, David P. ; Kalbach, R.M. ; et al.
Phys.Rev.Lett. 43 (1979) 1635, 1979.
Inspire Record 141766 DOI 10.17182/hepdata.20758

Measurements of π±p backward elastic scattering have been made for incident pion momenta between 30 and 90 GeV/c and for 0<−u<0.5 (GeV/c)2. The momentum dependence of the cross sections is of a form expected from a simple Regge model, and the u dependence of the cross sections is similar to that observed at lower momenta.

9 data tables
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HIGHER TWIST EFFECTS IN SEMIINCLUSIVE ANTI-NEUTRINO N ---> mu+ h- X REACTIONS

Ammosov, V.V. ; Asratian, A.E. ; Denisov, A.G. ; et al.
JETP Lett. 39 (1984) 537, 1984.
Inspire Record 200138 DOI 10.17182/hepdata.40969

None

6 data tables
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AZIMUTHAL ASYMMETRY OF NEGATIVELY CHARGED HADRONS IN THE REACTION ANTI-NEUTRINO N ---> MU+ H- X

Ammosov, V.V. ; Asratian, A.E. ; Berge, J.P. ; et al.
JETP Lett. 38 (1983) 248-251, 1983.
Inspire Record 202188 DOI 10.17182/hepdata.69924

None

2 data tables
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THE EXPERIMENTAL COMPARISON OF EMC EFFECT IN THE anti-neutrino n AND anti-neutrino p INTERACTIONS IN NEON NUCLEUS

Asratian, A.E. ; Efremenko, V.I. ; Fedotov, A.V. ; et al.
Sov.J.Nucl.Phys. 43 (1986) 380, 1986.
Inspire Record 216029 DOI 10.17182/hepdata.10019

None

3 data tables
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RESTRICTIONS ON TRANSVERSE MOMENTUM OF PARTON IN NUCLEON FROM THE DATA ON CHARGED CURRENT ANTI-MUON-NEUTRINO N INTERACTIONS

Ammosov, V.V. ; Asratian, A.E. ; Burtovoy, V.S. ; et al.
Yad.Fiz. 42 (1985) 664-666, 1985.
Inspire Record 221956 DOI 10.17182/hepdata.75409

None

1 data table
Table 1

No description provided.


QUASIELASTIC PRODUCTION OF LAMBDA HYPERON IN ANTI-NEUTRINO INTERACTIONS AT HIGH-ENERGIES

Ammosov, V.V. ; Asratian, A.E. ; Gapienko, V.A. ; et al.
JETP Lett. 43 (1986) 716-719, 1986.
Inspire Record 240170 DOI 10.17182/hepdata.2210

None

2 data tables
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