INCLUSIVE RESONANCE PRODUCTION IN 7.3-GEV/C ANTI-P P INTERACTIONS

Whyman, B.M. ; Johnson, P. ; Mason, P. ; et al.
Z.Phys.C 12 (1982) 203-216, 1982.
Inspire Record 179887 DOI 10.17182/hepdata.16423

We present results on inclusive baryon and meson resonance production in\(\bar pp\) interactions at 7.3 GeV/c. Total inclusive and semi-inclusive cross sections are given for Δ(1232),∑*(1385), ϱ0,f andK*±(892) production. For the meson resonances separation into annihilation and non-annihilation components has been made, the annihilation component being dominant at this energy. We find that the energy dependence of inclusive cross sections for ϱ0 production inpp interactions and\(\bar pp\) non-annihilations shows a type of scaling behaviour previously reported for ϕ, ψ, ψ′ and ϒ production inpp interactions.Δ++, ϱ0 andK*± production are studied in terms of Feynmanx,y* andpT2. For the vector mesons we compare they* andx dependences with the predictions of simple quark models.

9 data tables

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RHO0 ANNIHILATION AND NON-ANNIHILATION DATA.

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THE REACTION ANTI-P P ---> DELTA (1236) ANTI-DELTA (1236) AT BEAM MOMENTA OF 7.23-GEV/C AND 12.0-GEV/C

Van Apeldoorn, G.W. ; Harting, D. ; Holthuizen, D.J. ; et al.
Z.Phys.C 12 (1982) 95-98, 1982.
Inspire Record 179937 DOI 10.17182/hepdata.16432

The reactionp→Δ(1236)\(\bar \Delta \)(1236) is studied at 7.23 GeV/c and at 12GeV/c in terms of the OPE model of Wolf. Good agreement between the model and experimental data is found for the mass andt distributions whereas for decay angular distributions the agreement is less satisfactory. A modified model, allowing for a spin orbit coupling, gives good agreement also for the angular distribution.

3 data tables

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CROSS SECTION FOR -T < 0.14 GEV**2.


GENERAL FEATURES OF ANTI-P P INTERACTIONS AT 7.3-GEV/C

Patel, G.D. ; Johnson, P. ; Mason, P. ; et al.
Z.Phys.C 12 (1982) 189-202, 1982.
Inspire Record 179888 DOI 10.17182/hepdata.2239

Absolute inclusive cross sections for\(\bar pp\) interactions at 7.3 GeV/c are given. The data cover prong cross sections,V0, γ production and inclusive charged particle (p/π) production. Separation has been made into annihilation and non-annihilation components. Inclusive π+, π− production in the processes of\(\bar pp\) annihilation and non-annihilation are compared with simple quark models.

26 data tables

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ANNIHILATION AND NON-ANNIHILATION TOPOLOGICAL CROSS SECTIONS.

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Inclusive $\rho^0$, $K^*$+- (892) and F Production in $\bar{p} p$ Interactions at 12-{GeV}/$c$

Karimaki, V. ; Kinnunen, R. ; Korkea-aho, M. ; et al.
Z.Phys.C 9 (1981) 117, 1981.
Inspire Record 164811 DOI 10.17182/hepdata.14087

Inclusive production of ϱ0,K*±(892), andf is studied in\(\bar p\)p interactions at 12 GeV/c. The inclusive cross sections for ϱ0,K*±(892), andf are found to be 6.7±0.3 mb, 1.0±0.2 mb, and 1.4±0.3 mb, respectively. The differential cross sections are presented as a function of c.m. rapidity, Feynmanx and square of the transverse momentumpT2. Comparison with the correspondingpp data shows some interesting differences which can be attributed to the\(\bar p\)p annihilation. The results are compared with the predictions of the quark fusion model.

4 data tables

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INCLUSIVE SIGMA+- (1385) PRODUCTION IN anti-p p INTERACTIONS AT 12-GeV/c

Karimaki, V. ; Kinnunen, R. ; Korkea-aho, M. ; et al.
Z.Phys.C 10 (1981) 189-195, 1981.
Inspire Record 164260 DOI 10.17182/hepdata.16474

Inclusive production of∑±(1385) resonances is studied in\(\bar pp\) interactions at 12 GeV/c. The cross sections for∑+(1385)+cc and∑− are determined to be 251±38 μb and 123±30 μb, respectively. The inclusive spectra are presented as a function of Feynman x, c.m. rapidity and the squared transverse momentumpT2. Significant differences with the correspondingpp data are found in the longitudinal momentum distributions. The qualitative features of the production can be explained by simple quark ideas.

1 data table

Axis error includes +- 0.0/0.0 contribution (?////DUE TO CHOISE OF THE BACKGROUND PARAMETRIZATIONRES-DEF(RES= SIG(1385P13) ,BACK=CORRECTED,DEF=1.26 < M(P PI) < 1.80 GEV,C=PDG 1978)//RES-DEF(RES= ASIG(1385P13) ,BACK=CORRECTED,DEF=1.26 < M(AP PI) < 1.80 GEV,C=PDG 1978)).


General Features of the Anti-p $p$ Interaction at 12-{GeV}/c

Johnson, P. ; Mason, P. ; Muirhead, H. ; et al.
Nucl.Phys.B 173 (1980) 77-92, 1980.
Inspire Record 8886 DOI 10.17182/hepdata.34472

Simple inclusive cross sections for p p interactions at 12 GeV/ c are given. The data cover prong cross sections, V 0 production and resonances. Separation has been made into annihilation and non-annihilation modes. Some implications of the data are discussed. It is pointed out that the ratios of cross sections for ϱ 0 π − production are independent of incident antiproton momentum in p p annihilation processes, and that data at the highest available pp energies (ISR) tend to the same value.

1 data table

NORMALIZED TO A TOTAL CROSS SECTION OF 51.7 +- 0.8 MB.


QUADRUPOLE EFFECT IN ELASTIC PROTON SCATTERING WITH 1-GEV ENERGY ON THE NUCLEI OF THE P SHELL. (IN RUSSIAN)

Alkhazov, G.D. ; Belostotsky, S.L. ; Vorobev, A.A ; et al.
Pisma Zh.Eksp.Teor.Fiz. 29 (1979) 88-92, 1979.
Inspire Record 145178 DOI 10.17182/hepdata.70237

None

26 data tables

X ERROR D(THETA) = 0.2000 DEG.

X ERROR D(TARGET) = 99.60 PCT. X ERROR D(THETA) = 0.2000 DEG.

X ERROR D(THETA) = 0.2000 DEG.

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Cross-Sections of Strange Particles Produced in pi- p Interactions at 5-GeV/c

Glagolev, V.V. ; Dushutin, N.K. ; Kladnitskaya, E.N. ; et al.
Sov.J.Nucl.Phys. 21 (1975) 637, 1975.
Inspire Record 90781 DOI 10.17182/hepdata.19091

None

1 data table

No description provided.


Analysis of the q in k- d ---> k- pi- pi+ d and k- d ---> k- pi- pi+ n p(s) at 7.3 gev/c

Anderson, K.J. ; Franklin, A.D. ; Godden, G.D. ; et al.
Phys.Rev.D 6 (1972) 1823-1833, 1972.
Inspire Record 83144 DOI 10.17182/hepdata.22254

Results from the study of reactions (1) K−d→K−π−π+d and (2) K−d→K−π−π+nps at 7.3 GeV/c are presented. The interactions are dominated by the production of K*(890), ρ(765), Q(1200−1450), and D*(2200) in (1) and Δ−(1236) in (2). Observation of ρ(765) and its possible source as a misidentified K*(890) is discussed. Evidence is observed of splitting of the Q into two resonances with masses and widths (in MeV) M1=1228±21, Γ1=111±33, M2=1414±15, and Γ2=89±24, L(1775) is observed in (1). An off-shell one-pion-exchange-model calculation is compared to (2). Cross sections and branching ratios of the Q resonances are estimated on the basis of the model.

1 data table

Q (OR K(A)) CROSS SECTIONS MODEL-DEPENDENT WITH BACKGROUND UNSUBTRACTED.