Ming, Ma.Z.
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Anti-proton-deuteron elastic scattering between 1.60 and 2.00 gev/c

Ming, Ma.Z. ; Smith, G.A. ;
Phys.Rev.Lett. 27 (1971) 344-347, 1971.
Inspire Record 68950 DOI 10.17182/hepdata.3515

We have studied antiproton-deuteron elastic scattering between 1.60 and 2.00 GeV/c incident momenta. The differential cross sections may be characterized by a very steep forward peak (with b∼43 GeV−2) and a prominent break near −t∼0.2 GeV2. The results are used to test the validity of Glauber's multiple-scattering theory. Within the experimental range of measurements (−t between 0.028 and 0.46 GeV2), the theory provides a good qualitative description of the data.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Analysis of two-prong events in proton proton interactions at 6.6 gev/c

Colton, E. ; Ming, Ma.Z. ; Smith, G.A. ; et al.
Phys.Rev.D 7 (1972) 3267-3295, 1972.
Inspire Record 82060 DOI 10.17182/hepdata.22134

A detailed analysis is presented of the reactions pp→pp,pp→ppπ0 and pp→pπ+n. The production cross sections are found to be 11.47 ± 0.33 mb, 2.54 ± 0.16 mb, and 5.73 ± 0.35 mb, respectively. The t dependence of elastic scattering can be described by the form e7.9t over the range 0.05<−t<0.50 GeV2. The single-particle distributions for the single-pion production processes are presented. Further detailed analyses are presented which demonstrate that pion-exchange phenomenology, both elementary and Reggeized, can account for the gross features of the peripheral pp→pπ+n data for M(pπ+)<2.4 GeV. Isospin-12 isobars are produced by some other processes in the channel pp→pN*+, especially when the invariant mass of the pion with the unrelated proton is large. We discuss the properties of these isobars.

6 data tables
Table 1

No description provided.

Table 2

FITTED OVER 0.05 < -T < 0.5 GEV**2.

Table 3

No description provided.

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A formation study of n anti-n interactions between 1.09 and 3.45 gev/c. (iv)-features of annihilations into k anti-k and pi mesons

Oh, B.Y. ; Eastman, P.S. ; Ming, Ma.Z. ; et al.
Nucl.Phys.B 63 (1973) 1-27, 1973.
Inspire Record 83880 DOI 10.17182/hepdata.32487

Final state resonance production and single particle momentum spectra are presented for p p annihilations into K K and π's between 1.09 and 3.45 GeV/ c . Resonance production generally agrees with the Lamb statistical model. Momentum spectra of K's and π's are independent of incident energy, while the mean multiplicity increases in proportion to the c.m. energy, supporting the annihilation model of Jacob and Nussinov.

2 data tables
Table 1

THESE CROSS SECTIONS WERE GIVEN IN DETAIL IN B. Y. OH ET AL., NP B51, 57 (1973).

Table 2

No description provided.


A formation study of n anti-n interactions between 1.51 and 2.90 gev/c. iii. resonance production

Ming, Ma.Z. ; Eastman, P.S. ; Oh, B.Y. ; et al.
Nucl.Phys.B 51 (1973) 77-94, 1973.
Inspire Record 84298 DOI 10.17182/hepdata.32684

A systematic study of p p and p d resonance production cross sections in non-strange annihilation channels between 1.51 and 2.90 GeV/ c has been completed. The data have been analysed in relation to the three known structures at c.m. N N energies of 2190, 2350 and 2375 MeV. Several resonance intermediate states may have broad maxima near the isopin one 2350 MeV structure. However, more data below 1.6 GeV/ c are required to better describe the background in this region before firm conclusions may be drawn.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


A formation study of n anti-n interactions between 1.51 and 2.90 gev/c. i. topological and reaction cross-sections

Eastman, P.S. ; Ming, Ma.Z. ; Oh, B.Y. ; et al.
Nucl.Phys.B 51 (1973) 29-56, 1973.
Inspire Record 84299 DOI 10.17182/hepdata.32706

A systematic study of p p and p d topological and reaction cross sections between 1.51 and 2.90 GeV/ c has been completed. The data have been analysed in relation to the three known structures at c.m. N N energies of 2190, 2350 and 2375 MeV. The data suggest that four- and six-pion annihilations of antiprotons on neutrons may be the source of the 2350 MeV effect. Further data below 1.60 GeV/ c are required to verify this tentative conclusion.

3 data tables
Table 1

No description provided.

Table 2

INCLUDING 3 PCT SYSTEMATIC ERROR.

Table 3

No description provided.


A formation study of n anti-n interactions between 1.09 and 3.45 gev/c. ii. strange particles

Oh, B.Y. ; Eastman, P.S. ; Ming, Ma.Z. ; et al.
Nucl.Phys.B 51 (1973) 57-76, 1973.
Inspire Record 84294 DOI 10.17182/hepdata.8011

A systematic study of p p and p d reactions producing strange particles between 1.09 and 3.45 GeV/ c has been completed. Reaction and resonance cross-section data are presented at 11 p p and 13 p d momentum settings. Evidence for a broad shoulder in the K K 3π final state near 1.8 GeV/ c is presented and contrasted to previously published work on a portion of the final data sample. No evidence for a p n → K 0 K − ω effect near 1.3 GeV/ c is found, ruling out an association of K K ω effects with the nearby isospin one enhancement in the total cross section. Finally, we find no evidence for a p p → K K ω enhancement near 1.8 GeV/ c .

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of the Reaction anti-p n --> pi+ pi- pi- Between 1.09-GeV/c and 1.43-GeV/c

Mountz, J.M. ; Ming, Ma Z. ; Zemany, P. ;
Phys.Rev.D 18 (1978) 2227-2234, 1978.
Inspire Record 136560 DOI 10.17182/hepdata.19429

We have analyzed the reaction p¯n→π+π−π− in a deuterium bubble-chamber experiment for incident antiproton momenta between 1.09 and 1.43 GeV/c. Data are analyzed in terms of the Veneziano model. The magnitudes of the spin-parity functions are determined independently in an analysis of the spin-state composition of the p¯n system. The amount of each spin-dependent Veneziano amplitude is contrained to these values in the construction of a Veneziano model. The model is found to be generally in good agreement with the data. This represents a more rigorous test of the Veneziano model than previously published works.

1 data table
Table 1

FITTED FRACTIONS IN INCOHERENT SUM OF RESONANT CHANNELS.


Test of Scaling of the Massive Dihadron Cross-section

Kaplan, D.M. ; Guo, R. ; Brown, C.N. ; et al.
Phys.Rev.D 41 (1990) 2334, 1990.
Inspire Record 285484 DOI 10.17182/hepdata.22990

Measurements of the cross section for production of massive dihadrons by 800-GeV protons incident on a tungsten target are presented. These are compared with measurements taken at lower and higher s and with perturbative-QCD predictions. Scaling and A-dependence behaviors observed at lower energies are confirmed, and good agreement with QCD is obtained. Model dependences of earlier measurements are discussed.

2 data tables
Table 1

No description provided.

Table 2

Triple differential cross section. Note that the errors plotted in the original figure are 2 time too large. The numbers given here are correct.


Nuclear Dependence of Dimuon Production at 800-GeV

Alde, D.M. ; Baer, H.W. ; Carey, T.A. ; et al.
Phys.Rev.Lett. 64 (1990) 2479-2482, 1990.
Inspire Record 303588 DOI 10.17182/hepdata.19997

A precise measurement of the atomic-mass dependence of dimuon production induced by 800-GeV protons is reported. Over 450 000 muon pairs with dimuon mass M≥4 GeV were recorded from targets of H2, C, Ca, Fe, and W. The ratio of dimuon yield per nucleon for nuclei versus H2, R=YA/Y2H, is sensitive to modifications of the antiquark sea in nuclei. No nuclear dependence of this ratio is observed over the range of target-quark momentum fraction 0.1

10 data tables
Table 1

High Mass trigger data.

Table 2

Intermediate Mass trigger data.

Table 3

Low Mass trigger data.

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The A-Dependence of $J / \psi$ and $\psi^{\prime}$ Production at 800 GeV/c

Alde, D.M. ; Baer, H.W. ; Carey, T.A. ; et al.
Phys.Rev.Lett. 66 (1991) 133-136, 1991.
Inspire Record 301531 DOI 10.17182/hepdata.19916

The yield of J/ψ and ψ’ vector-meson states has been measured for 800-GeV protons incident on deuterium, carbon, calcium, iron, and tungsten targets. A depletion of the yield per nucleon from heavy nuclei is observed for both J/ψ and ψ’ production. This depletion exhibits a strong dependence on xF and pt. Within experimental errors the depletion is the same for the J/ψ and the ψ’.

13 data tables
Table 1

Ratio of heavy nucleus to deuterium yields. A is the mass number of the target nucleus.

Table 2

Ratio of heavy nucleus to deuterium yeilds. A is the mass number of the target nucleus.

Table 3

Ratio of heavy nucleus to deuterium yeilds. A is the mass number of the target nucleus.

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