Aleshin, Yu.D.
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The Reaction $p + p \rightarrow p + p + {\pi}^0$ in the Energy Range from Threshold to 665 MeV

Dunaitsev, A.F. ; Prokoshkin, Yu.D. ;
Sov.Phys.JETP 9 (1959) 1179, 1959.
Inspire Record 1408597 DOI 10.17182/hepdata.70460

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurement of the $\pi^{-} p \rightarrow X^{0}n$ cross section in the momentum up to 50 GeV/c

Bolotov, V.N. ; Isakov, V.V. ; Kakuridze, D.B. ; et al.
Sov.J.Nucl.Phys. 19 (1974) 308-310, 1974.
Inspire Record 1392569 DOI 10.17182/hepdata.19171

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Study of the reaction $\pi^- p \rightarrow \omega^0 n$ at momenta 20 to 50 GeV/c

Bolotov, V.N. ; Isakov, V.V. ; Kakauridze, D.B. ; et al.
Phys.Lett.B 53 (1974) 217-220, 1974.
Inspire Record 1388799 DOI 10.17182/hepdata.27929

The mass spectrum of 3γ states produced in π−p collisions has been studied. A peak corresponding to ωo→πoγ decay in the π−p→ωon reaction was selected. The measurements were performed at the IHEP accelerator at momenta 21, 25, 32.5, 40 and 48 GeV/c. The reaction cross section decreases with the momentum in a power form (∼P−2.4) The differential cross section follows exponential t-dependence, exp (bt). The scattering cone shrinks slowly with the energy increase.

1 data table
Table 1

No description provided.


Pion Production in 650-MeV p-p Collisions

Guzhavin, V.M. ; Kliger, G.K. ; Kolganov, V.Z. ; et al.
Sov.Phys.JETP 19 (1964) 847-854, 1964.
Inspire Record 1387586 DOI 10.17182/hepdata.70070

The angular and energy distributions of pions produced by 650-MeV protons and pion-nucleon correlations were studied using a liquid hydrogen bubble chamber. The present investigation indicates that the experimental angular distributions of neutral and charged pions are consis- tent with the assumption of isotopic spin conservation. The contributions of rrN subsystem states with isospin T 11'N = 7' 2 and % are measured; the contribution of the latter is 72 ± 3%.

1 data table
Table 1

No description provided.


Polarization in the quasielastic scattering of 1-GeV/c protons on light nuclei.

Miklukho, O.V. ; Aleshin, N.P. ; Belostotsky, S.L. ; et al.
Phys.Atom.Nucl. 63 (2000) 824-833, 2000.
Inspire Record 533009 DOI 10.17182/hepdata.31238

Polarization measurements in the A(p, 2p)B reactions on 6Li, 7Li, and 28Si nuclei at a proton-beam energy of 1 GeV were performed in a kinematically complete experiment. By using a two-arm magnetic spectrometer, two secondary protons were recorded in coincidence at asymmetric scattering angles of θ1=15°−26° and θ2=58.6° for residual-nucleus momenta in the range K B=0–150 MeV/c. Either arm of the spectrometer was equipped with polarimeters based on proportional chambers. The data coming from this experiment are analyzed within the distorted-wave impulse approximation. It is shown that the polarization of recoil protons formed at angle θ2 in the interaction featuring a proton from the P shell of the 7Li nucleus can be described under the assumption of an effective intranuclear-proton polarization by using the single-particle shell-model wave function of the nucleus. Our data on the polarizations of the two protons from the reaction (p, 2p) on a 28Si nucleus also suggest the effective polarization of the protons in the D shell of the 28Si nucleus. It is found that, for high recoil-nucleus momenta of K B≥90 MeV/c, the effective polarization of the protons in the P shell of the 6Li nucleus—this polarization was discovered in studying the polarization of recoil protons in the reaction 6Li(p, 2p)5He—cannot be described within the shell model assuming LS coupling. As might have been expected, the polarization of recoil protons knocked out from the S shells of the 6Li and 7Li nuclei comply well with the predictions obtained in the impulse approximation with allowance for the depolarization effect alone.

37 data tables
Table 1

REACTION WITH THE LI6 P-SHELL PROTON.

Table 2

REACTION WITH THE LI6 P-SHELL PROTON.

Table 3

REACTION WITH THE LI6 P-SHELL PROTON.

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A Study of the centrally produced pi+ pi- pi0 channel in p p interactions at 450-GeV/c

The WA102 collaboration Barberis, D. ; Beusch, W. ; Binon, F.G. ; et al.
Phys.Lett.B 422 (1998) 399-404, 1998.
Inspire Record 466032 DOI 10.17182/hepdata.41629

The reaction pp -> pf (pi+pi-pi0) ps has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the dPT filter applied. The analysis confirms the previous observation that all undisputed qqbar states are suppressed at small dPT. In addition, a clear difference is observed in the production mechanism for the eta and omega.

1 data table
Table 1

SIG(C=TOT) denotes the total cross section for each resonance. The variable ABS(PT(P=3)-PT(P=4)) is used as a glueball-QUARK QUARKBAR filter (see F.E.Close and A.Krik, PL 397B, 333 (1997)).


Study of the pi0 pi0 system with the GAMS-4000 spectrometer at 100-GeV/c.

The GAMS collaboration Alde, D. ; Binon, F.G. ; Boutemeur, M. ; et al.
Eur.Phys.J.A 3 (1998) 361-371, 1998.
Inspire Record 474862 DOI 10.17182/hepdata.43500

The πpi-system produced in the charge exchange π−p-reaction at 100 GeV/c has been studied. The experiment was performed at the CERN SPS accelerator with the multiphoton hodoscope spectrometer GAMS-400

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


A study of the KKbarpi channel produced centrally in pp interactions at 450 GeV/c

The WA102 collaboration Barberis, D. ; Beusch, W. ; Binon, F.G. ; et al.
Phys.Lett.B 413 (1997) 225-231, 1997.
Inspire Record 445414 DOI 10.17182/hepdata.47447

Results are presented of an analysis of the reactions pp -> pf(k0k+pi-)ps and pp -> pf(K0K0pi0)ps at 450 GeV/c. Clear f1(1285) and f1(1420) signals are seen and a spin parity analysis shows that both have IG JPC=0+ 1++. The f1(1285) decays to a0(980)pi and the f1(1420) decays to K* Kbar. Both states have a similar dependence as a function of dPT consistent with what has been observed for other qqbar states. Evidence is also presented for a K*Kbar decay mode of the eta2(1620).

1 data table
Table 1

SIG(C=TOT) denotes the total cross section for each resonance.


A study of the centrally produced 4pi channel in pp interactions at 450 GeV/c

The WA102 collaboration Barberis, D. ; Beusch, W. ; Binon, F.G. ; et al.
Phys.Lett.B 413 (1997) 217-224, 1997.
Inspire Record 445413 DOI 10.17182/hepdata.47448

The reaction pp -> pf (pi+pi-pi+pi-) ps has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the dPT filter applied. In addition to the well known f1(1285) there is evidence for two JPC=2-+ states called the eta2(1620) and eta2(1875) and a broad scalar called the f0(2000). The production of these states as a function of the dPT kinematical filter shows the behaviour expected for qqbar states. In contrast, there is evidence for two states at 1.45 GeV and at 1.9 GeV which do not show the behaviour observed for qqbar states.

1 data table
Table 1

SIG(C=TOT) denotes the total cross section for each resonance.


Spin-parity analysis of eta pi0 pi0 system in pi- p charge exchange reaction at 100-GeV/c by Zemach method.

The GAMS collaboration Alde, D. ; Binon, F.G. ; Bricman, C. ; et al.
IFVE-96-39, 1996.
Inspire Record 425699 DOI 10.17182/hepdata.40710

None

1 data table
Table 1

No description provided.