INCLUSIVE K0(S), LAMBDA AND anti-LAMBDA PRODUCTION IN 360-GeV/c p p INTERACTIONS USING THE EUROPEAN HYBRID SPECTROMETER

The EHS-RCBC collaboration Asai, M. ; Bugg, W.M. ; Bailly, J.L. ; et al.
IFVE-85-65, 1985.
Inspire Record 214009 DOI 10.17182/hepdata.10425

None

3 data tables match query

Axis error includes +- 0.0/0.0 contribution (?////).

Axis error includes +- 0.0/0.0 contribution (?////).

Axis error includes +- 0.0/0.0 contribution (?////).


Multiplicity of Charged Particles in 800-{GeV} $p p$ Interactions

The LEBC-MPS collaboration Ammar, R. ; Aziz, T. ; Banerjee, S. ; et al.
Phys.Lett.B 178 (1986) 124-128, 1986.
Inspire Record 231133 DOI 10.17182/hepdata.6558

Results are reported concerning the charged-particle multiplicity distribution obtained in an exposure of the high-resolution hydrogen bubble chamber LEBC to a beam of 800 GeV protons at the Fermilab MPS. This is the first time that such data have been available at this energy. The distribution of the number n ch of charged particles produced in inelastic interactions obeys KNO-scaling. The average multiplicity is 〈 n ch 〉 = 10.26±0.15. For n ch ⩾8 the data can be well fitted to a negative binomial. The difference between the overall experimental multiplicity distribution and that resulting from the latter fit is in agreement with the contribution expected from diffractive processes.

1 data table match query

No description provided.


Observation of Longitudinal Event Structure in Proton Diffractive Dissociation at the {ISR}

The R608 collaboration Smith, A.M. ; Meritet, L. ; Reyrolle, M. ; et al.
Phys.Lett.B 167 (1986) 248-254, 1986.
Inspire Record 219984 DOI 10.17182/hepdata.30272

We study the internal structure of a forward-going pπ + π − π + π − system, with invariant mass in the range 2.5-4 GeV, produced through diffractive dissociation of a beam proton at the ISR. The shape of the system, as seen in its center-of-mass, deviates strongly from isotropic phase space and possesses, rather, a longitudinal structure with a major axis along the incoming proton direction. The final state proton momentum is aligned in the direction of the incoming proton, an effect which becomes more pronounced with increasing diffractive mass.

2 data tables match query

Acceptance corrected distribution of momentum transfer to the diffractive (p-4pi) system. Data requested from authors.

No description provided.


OBSERVATION OF POLARIZATION IN DIFFRACTIVE DISSOCIATION p ---> LAMBDA0 K+ AT THE CERN ISR

Erhan, S. ; Hayes, K. ; Smith, A.M. ; et al.
62-65, 1984.
Inspire Record 202932 DOI 10.17182/hepdata.49652

None

1 data table match query

No description provided.


Diffraction Dissociation of Photons on Hydrogen

Chapin, T.J. ; Cool, R.L. ; Goulianos, Konstantin A. ; et al.
Phys.Rev.D 31 (1985) 17-30, 1985.
Inspire Record 216071 DOI 10.17182/hepdata.4332

We report results from a measurement of the inclusive diffraction dissociation of photons on hydrogen, γp→Xp, in the range 75<pγ<148 GeV/c, 0.02<‖t‖<0.1 (GeV/c)2, and MX2/s<0.1. Our data show an exponential t dependence and a dominant 1/MX2 behavior for MX2>4 GeV2. We test the finite-mass sum rule and, by comparing γp with π−p data obtained in the same apparatus, we test factorization.

14 data tables match query

EXTRACTED ELASTIC CROSS SECTIONS.

RESULTS OF EXPONENTIAL FITS TO ELASTIC CROSS SECTIONS.

DIFFERENTIAL CROSS SECTIONS FOR INELASTIC EVENTS.

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Slope parameter and real part of the p n elastic scattering amplitude in the energy range 10-70 gev

Beznogikh, G.G. ; Buyak, A. ; Zhidkov, N.K. ; et al.
Yad.Fiz. 18 (1973) 348-352, 1973.
Inspire Record 84825 DOI 10.17182/hepdata.19178

None

1 data table match query

FOR -T = 0.002 TO 0.05 GEV**2.


The s Dependence of Double Diffraction Dissociation of Protons at the CERN Intersecting Storage Rings

Goggi, G. ; Mantovani, G.C. ; Cavalli-Sforza, M. ; et al.
Phys.Lett.B 72 (1977) 261-264, 1977.
Inspire Record 121797 DOI 10.17182/hepdata.27507

We report results on a new measurement of the double diffractive reaction pp → (p π + π − ) (p π + π − ) at the ISR obtained with the Split Field Magnet detector. Experimental procedures and data analysis are discussed in detail. The cross section measured at the five standard ISR energies exhibits an increase of (55 ± 7)% in the s -range from 549 to 3892 GeV 2 .

1 data table match query

DOUBLE DIFFRACTION DISSOCIATION OF PROTONS.


Study of Charge-Exchange Double Dissociation of Protons at the CERN Intersecting Storage Rings

Goggi, G. ; Mantovani, G.C. ; Cavalli-Sforza, M. ; et al.
Phys.Lett.B 72 (1977) 265-268, 1977.
Inspire Record 121784 DOI 10.17182/hepdata.27505

We have measured the charge-exchange reaction pp → (p π + ) (p π − ) at s = 23, 31, 45, 53, and 63 GeV at the ISR, using the Split Field Magnet detector. The data are characterized by a sharp forward peak of width 0.02 (GeV/ c ) 2 , followed by a much gentler slope at higher | t |; sizeable Δ ++ , Δ 0 , and N 0 production is observed in the (Nπ) mass spectra. Two different components are present in the data following power-law energy dependence of the type p lab − n with n 1 = −1.63 ± 0.13 and n 2 = −0.96 ± 0.07, respectively, indicating the onset of mechanisms in competition with pion exchange at ISR energies.

1 data table match query

CHARGE EXCHANGE DOUBLE DIFFRACTION DISSOCIATION OF PROTONS. DEL++, DEL0, N(1520)0 AND N(1688)0 RESONANCES IDENTIFIED IN PROTON-PION MASS SPECTRA.


First Results on Diffraction Dissociation of Neutrons at the ISR

Mantovani, G.C. ; Cavalli-Sforza, M. ; Conta, C. ; et al.
Phys.Lett.B 64 (1976) 471-474, 1976.
Inspire Record 110024 DOI 10.17182/hepdata.27617

Neutron diffraction dissociation has been measured at the ISR in proton-neutron interactions at 37 GeV c.m. energy. The data were taken with the Split Field Magnet detector, during a short deuteron storage test run with colliding p-d beams. Differential mass and momentum transfer distributions are reported; the value of the total cross-section shows a weak s -dependence when compared to lower energy data.

1 data table match query

ERROR IS MOSTLY SYSTEMATIC.


Observation of Neutron Neutron Interactions with Double Diffraction Dissociation at the ISR

Mantovani, G.C. ; Cavalli-Sforza, M. ; Conta, C. ; et al.
Phys.Lett.B 65 (1976) 401-404, 1976.
Inspire Record 110581 DOI 10.17182/hepdata.27598

Neutron-neutron interactions have been observed at the CERN ISR with deutron colliding beams. The double - diffraction dissociation process →(p π p − )( pπ − ) has been measured with the Split Field Magnet at √ s = 26 GeV detecting all final state particles, including the two spectator protons. Mass and t distributions are presented and compared with corresponding spectra observed in single neutron diffraction in the same energy range with supporting evidence for factorization. The cross-section of the process is 11.5±2.8 μ b and can be directly related to the corresponding value for double diffraction dissociation of protons in the same energy range.

2 data tables match query

ERROR IS MOSTLY SYSTEMATIC. DEUTERON CORRECTIONS APPLIED.

No description provided.