HEPData Search

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Experimental Study of Lambda p and xi0 p Interactions in the Range 1-GeV/c-10-GeV/c

Hauptman, J.M. ; Kadyk, J.A. ; Trilling, G.H. ;

Nucl.Phys.B 125 (1977) 29-51, 1977.

Inspire Record 119088 DOI 10.17182/hepdata.35369

The reactions Λ p → Λ p, → Σ ± p π ∓ , → Λ p π + π − and → Σ 0 p have been studied in the SLAC 82 inch bubble chamber for incident Λ particles in the momentum range 1–10 GeV/ c . The incident Λ flux was produced by the exposure of a platinum target mounted inside the chamber to a 12 GeV K − beam. A total of 992 events have been analyzed. The reactions are found to be qualitatively similar to corresponding nucleon-nucleon reactions. In particular, the slope parameter B in the elastic cross section d σ /d t = A e Bt has been determined as a function of incident momentum and found to be consistent with that for proton-proton elastic scattering. Angular distributions for the inelastic channels are compared with those of similar nucleon-nucleon reactions, and predictions of relevant exchange models.

5 data tables match query

Table 1

IN BINS OF EQUAL INCIDENT LAMBDA PATH-LENGTH.

Table 2

IN 100 MEV/C BINS.

Table 3

No description provided.

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Elastic Scattering of 3.5-BeV/c $\pi^-$ Mesons by Protons

Ainutdinov, M.S. ; Zombkovskii, S.M. ; Pletnikov, A.A. ; et al.

Sov.Phys.JETP 18 (1964) 271-272, 1964.

Inspire Record 1387686 DOI 10.17182/hepdata.70200

THE study of elastic scattering at high energies in the region of the diffraction maximum has gained in interest recently in connection with the verifica- tion of the asymptotic expressions obtained by cal- culating the Regge-pole trajectories. We have in- vestigated the elastic scattering of 3. 5- Be VIc 7r- mesons by protons. The measurements were made with the aid of a liquid-hydrogen bubble chamber 25 em in diameter, placed in a 14 kOe magnetic field.

3 data tables match query

Table 1

No description provided.

Table 2

DATA READ FROM GRAPH BY SRS.

Table 3

No description provided.

Real to Imaginary Ratio of the $\bar{p} p$ Forward Elastic Scattering Amplitude in the Momentum Range Between 180-{MeV}/$c$ and 590-{MeV}/$c$

Bruckner, W. ; Dobbeling, H. ; Guttner, F. ; et al.

Phys.Lett.B 158 (1985) 180-185, 1985.

Inspire Record 213992 DOI 10.17182/hepdata.30392

The real-to-imaginary ratio of the p p forward elastic scattering amplitude has been measured at the LEAR facility of CERN by the Coulomb-nuclear interference method at seven beam momenta between 181 and 590 MeV/ c . The ratio is positive at 590 MeV/ c , becomes negative below 500 MeV/ c , reaches a minimum at 260 MeV/ c and then crosses zero again at about 230 MeV/ c .

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Measurement of the Real Part of the Forward Amplitude in K- n and K+ n Elastic Scattering at 10-GeV/c and a New K+- n Dispersion Relation

Baillon, P. ; Declais, Y. ; Ferro-Luzzi, M. ; et al.

Nucl.Phys.B 134 (1978) 31-48, 1978.

Inspire Record 122470 DOI 10.17182/hepdata.35130

The differential cross section in the very forward direction has been measured for K − and K + scattering (break-up and coherent) on a deuterium target at an incident momentum of 10 GeV/ c . From these measurements and using a model for the scattering and re-scattering effects in deuterium, we have exploited the Coulomb-nuclear interference to deduce the real part of the K ± n scattering amplitude at a momentum transfer t = 0. The measurements are the first ever obtained for the K + n reaction and the first at this energy for the K − n reaction. A comparison has been made between our results and those predicted from dispersion relations. A new dispersion-relation fit including all the existing K ± n values at different energies has been performed.

2 data tables match query

Table 1

SUM OF COHERENT AND BREAK-UP SCATTERING ON DEUTERIUM.

Table 2

FROM FIT TO D(SIG)/DT OVER -T=0.0018 TO 0.074 GEV**2 ALLOWING FOR COULOMB SCATTERING, DOUBLE SCATTERING, INTERFERENCES AND FERMI MOTION. CORRELATION BETWEEN SLOPE AND RE(AMP)/IM(AMP) IS REFLECTED IN THE GIVEN SYSTEMATIC E RRORS.

Lambda p Interactions Below 24-GeV/c

Mount, R.P. ; Ansorge, R.E. ; Carter, J.R. ; et al.

Phys.Lett.B 58 (1975) 228-232, 1975.

Inspire Record 103555 DOI 10.17182/hepdata.27777

Λp interactions have been studied at momenta up to 24 GeV/ c using a new bubble chamber technique. We find that the Λp elastic cross section has fallen to approximately 6 mb at the highest momentum. Results are presented on Λ p→ Λ p π + π − for the first time above 5 GeV c .

3 data tables match query

Table 1

No description provided.

Table 3

ESTIMATE.

Table 4

ESTIMATE BASED ON EXTRAPOLATION.

STUDY OF DIFFERENTIAL CROSS-SECTIONS FOR THE REACTIONS H-3 (P, N) HE-3 AND H-3 (P, P) H-3 AT THE TRITON MOMENTUM OF 2.5-GEV/C. (IN RUSSIAN)

Blinov, A.V. ; Vanyushin, I.A. ; Voitenko, I.D. ; et al.

Yad.Fiz. 35 (1982) 523-531, 1982.

Inspire Record 179833 DOI 10.17182/hepdata.2691

None

3 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Elastic and inelastic photoproduction of J / psi mesons at HERA

The H1 collaboration Aid, S. ; Andreev, V. ; Andrieu, B. ; et al.

Nucl.Phys.B 472 (1996) 3-31, 1996.

Inspire Record 416868 DOI 10.17182/hepdata.44896

Results on \jpsi\ production in $e p$ interactionsin the H1 experiment at HERA are presented. The \jpsi\ mesons are produced by almost real photons ($Q~2\approx 0$) and detected via their leptonic decays. The data have been taken in 1994 and correspond to an integrated luminosity of $2.7\,\mbox{pb}~{-1}$. The $\gamma p$ cross section for elastic \jpsi\ production is observed to increase strongly with the \cm\ energy. The cross section for diffractive $J/\psi$ production with proton dissociation is found to be of similar magnitude as the elastic cross section. Distributions of transverse momentum and decay angle are studied and found to be in accord with a diffractive production mechanism. For inelastic \jpsi\ production the total $\gamma p$ cross section, the distribution of transverse momenta, and the elasticity of the \jpsi\ are compared to NLO QCD calculations in a colour singlet model and agreement is found. Diffractive \psiprime\ production has been observed and a first estimate of the ratio to \jpsi\ production in the HERA energy regime is given.

5 data tables match query

Table 7

Combined cross section for ELASTIC J/PSI production with proton dissociation.

Table 10

Slope for J/PSI production with proton dissociation.

Table 12

Cross section for PSI(3685) production.

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LOW-ENERGY ANTI-PROTON INTERACTION STUDIES AT BROOKHAVEN

Sakitt, M. ; Ashford, V. ; Sainio, M.E. ; et al.

Conf.Proc.C 840709 (1984) 205, 1984.

Inspire Record 209026 DOI 10.17182/hepdata.50261

None

2 data tables match query

Table 1

TYPICAL QUASIELASTIC ANGULAR DISTRIBUTION FOR NUCLEAR TARGET. OTHER DATA ARE IN ASHFORD ET AL (1985-PHYS REV C).

Table 3

No description provided.

MEASUREMENT OF n p ELASTIC SCATTERING AT HIGH-ENERGIES AND VERY SMALL MOMENTUM TRANSFERS

The Freiburg-Moscow collaboration Arefev, A. ; Babaev, A. ; Bamberger, A. ; et al.

Nucl.Phys.B 232 (1984) 365, 1984.

Inspire Record 190837 DOI 10.17182/hepdata.33883

The np elastic differential cross section has been measured for incident neutron momenta 100–400 GeV/ c in the | t | range 6 · 10 −6 − 5 · 10 −1 (GeV/ c ) 2 . The np data of this experiment provide a first direct measurement of the hadronic amplitude for | t | < 10 −2 (GeV/ c ) 2 , which is consistent with the extrapolations from higher | t | values. Our data for | t | < 10 −4 (GeV/ c ) 2 are consistent with a rise which can be attributed to Schwinger scattering, caused by the interaction of the neutron magnetic moment with the proton.

9 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.