Reaction $\pi^- p \to \eta^\prime n$ in the 15-{GeV}/$c$ - 40-{GeV}/$c$ Momentum Range

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.
Phys.Lett. B83 (1979) 131, 1979.
Inspire Record 141023 DOI 10.17182/hepdata.49657
8 data tables

AVERAGE RATIO IS 2.76 +- 0.07 PCT.

AVERAGE RATIO IS 0.52 +- 0.02.

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Measurement of pi- p ---> eta n from threshold to p (pi-) = 747-MeV/c

Prakhov, S. ; Nefkens, B.M.K. ; Allgower, C.E. ; et al.
Phys.Rev. C72 (2005) 015203, 2005.
Inspire Record 687736 DOI 10.17182/hepdata.25215
3 data tables

Total cross sections.

Differential cross section for the 4 lowest beam momenta.

Differential cross section for the 3 highest beam momenta.


Study of narrow mesons near their thresholds

Binnie, D.M. ; Camilleri, L. ; Debenham, N.C. ; et al.
Phys.Rev. D8 (1973) 2789-2813, 1973.
Inspire Record 93328 DOI 10.17182/hepdata.47579

A novel form of mass spectrometer has been used to measure the masses, widths, and cross sections of the η, ω, X0(958), and φ mesons near their respective thresholds in the reaction π−+p→missingmass+n. The incident momentum is varied in small steps through the threshold while neutrons of a given momentum are detected near zero degrees. The lower limit of the c.m. momentum P* at which measurements have been made ranges from about 50 MeV/c at the φ to about 30 MeV/c at the η. A somewhat low value for the ω mass, 782.3 ± 0.6 MeV, is found. The width of the X0 is < 1.9 MeV (95% confidence level). All four mesons show evidence of S-wave production, with values of σP* of 21.2 ± 1.8, 0.35 ± 0.03, and 0.29 ± 0.06 μb/(MeV/c) for the η, X0, and φ, respectively. A rapid rise in the ω cross section appears to be modified by a final-state interaction. The effect of this rise can probably be seen in some S11 pion-nucleon phase-shift solutions. Evidence is also presented of a sudden drop in the π+π− mass spectrum just above the threshold for the production of a K+K− pair. The paper includes a comprehensive discussion of the method and of the details of the spectrometer.

1 data table

CROSS SECTIONS NEAR THRESHOLD.


Backward pi- p Reactions Between 0.6-GeV/c and 1-GeV/c

Debenham, N.C. ; Binnie, D.M. ; Camilleri, L. ; et al.
Phys.Rev. D12 (1975) 2545-2556, 1975.
Inspire Record 104820 DOI 10.17182/hepdata.24845
2 data tables

No description provided.

No description provided.


Study of the Charge Exchange Reactions $\pi^- p \to (\pi^0$, $\eta$, $\eta^\prime$) $n$ at 63-{GeV}

The ACCMOR collaboration Daum, C. ; Hertzberger, L. ; Hoogland, W. ; et al.
Z.Phys. C8 (1981) 95, 1981.
Inspire Record 156266 DOI 10.17182/hepdata.49658
4 data tables

INCLUDING SYSTEMATIC ERRORS.

STATISTICAL ERRORS ONLY.

STATISTICAL ERRORS ONLY.

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The Reaction pi- p --> eta n Up to rho* (eta) = 450-MeV/c: Experimental Results and Partial Wave Analysis

Feltesse, J. ; Ayed, R. ; Bareyre, P. ; et al.
Nucl.Phys. B93 (1975) 242-260, 1975.
Inspire Record 99411 DOI 10.17182/hepdata.32003
2 data tables

No description provided.

No description provided.


Comparison of the Differential Cross-sections for $\pi^- p \to \eta^\prime n$ and $\pi^- p \to \eta n$ at 8.45-{GeV}/$c$

Stanton, N.R. ; Edwards, K.W. ; Legacey, D. ; et al.
Phys.Lett. B92 (1980) 353-357, 1980.
Inspire Record 8522 DOI 10.17182/hepdata.27193

The ratio R of the differential cross sections for π - p→ η ′n and π - p → η n has been measured with high statistics and small systematic errors at 8.45 GeV/ c . R is generally interpreted as the relative content of nonstrange, ground-state quarks in η' and η. We find that R decreases with increasing ⋎ t ⋎; however, extrapolation to t =0 gives R (0) = 0.672 ± 0.032 (statistical) ± 0.47 (systematic) for the dominant spin flip cross sections, and R (0) = 0.500 ± 0.035 for the spin non-flip, in excellent agreement with results at higher energy. An improved value of the branching fraction ( η '→ γγ )/( η '→all) of 0.0200 ± 0.0018 is obtained.

2 data tables

No description provided.

No description provided.


No description provided.

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DIFFERENTIAL CROSS-SECTIONS FOR THE REACTION PI- P ---> ETA N BETWEEN 724-MEV/C AND 2723-MEV/C

Brown, Robert M. ; Clark, A.G. ; Duke, P.J. ; et al.
Nucl.Phys. B153 (1979) 89-111, 1979.
Inspire Record 146579 DOI 10.17182/hepdata.34682

Differential cross sections for the reaction π − p→ η n at 20 incident pion momenta between 724 and 2723 MeV/ c are presented. The results are compared with previous measurements. The data show clear evidence of non-zero couplings of this channel to known I = 1 2 , S = 0 baryon resonances with masses up to 2000 MeV/ c 2 .

22 data tables

No description provided.

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DIFFERENTIAL CROSS-SECTION OF THE REACTION pi- p ---> eta0 n AT MOMENTA OF 3.3-GeV/c AND 4.75-GeV/c

Arkhipov, V.V. ; Astvatsaturov, R.G. ; Ivanov, V.I. ; et al.
Conference Paper, 1978.
Inspire Record 131557 DOI 10.17182/hepdata.43766
1 data table

THE DATA POINTS AT -T = 0.40 AND 0.60 GEV**2 WERE OBTAINED FROM THE PAPER BY J. P. DE BRION ET AL., NP B32, 557 (1971). THESE DATA OF O. GUISAN ET AL., PL 18, 200 (1965) ARE USED TO DETERMINE THE ABSOLUTE NORMALIZATION.


The Differential Cross-Section of the Reaction pi- p --> eta0 n at a Momentum of 3.3-GeV/c

Astvatsaturov, R.G. ; Arkhipov, V.V. ; Boitsova, L.S. ; et al.
Sov.J.Nucl.Phys. 27 (1978) 216, 1978.
Inspire Record 120289 DOI 10.17182/hepdata.19025
1 data table

No description provided.


Reaction $\pi^- p \to \eta n$ in the 15-{GeV}/$c$ to 40-{GeV}/$c$ Momentum Range

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.
Nucl.Phys. B152 (1979) 1, 1979.
Inspire Record 133409 DOI 10.17182/hepdata.41487
4 data tables

No description provided.

No description provided.

No description provided.

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The reaction pi- p ---> eta0 n in the momentum region up to 50 gev/c

Bolotov, V.N. ; Isakov, V.V. ; Kakauridze, D.B. ; et al.
Yad.Fiz. 18 (1973) 1262-1269, 1973.
Inspire Record 95279 DOI 10.17182/hepdata.19143
1 data table

No description provided.


Observation of three narrow neutral mesons in the vicinity of 950 mev

Cheshire, D.L. ; Jacobel, R.W. ; Lamb, R.C. ; et al.
Phys.Rev.Lett. 28 (1972) 520-523, 1972.
Inspire Record 75535 DOI 10.17182/hepdata.21441
1 data table

CROSS SECTION OVERALL UNCERTAINTY (APART FROM ETA PRODUCTION) ABOUT 30 PCT.


Investigation of the reaction pi- p ---> eta n at momenta up to 40-GeV/c

The Serpukhov-CERN collaboration Apel, W.D. ; Bertolucci, E. ; Bushnin, Yu.B. ; et al.
Sov.J.Nucl.Phys. 25 (1977) 194-197, 1977.
Inspire Record 118649 DOI 10.17182/hepdata.19079
2 data tables

No description provided.

No description provided.


Reaction pi- p ---> eta0 n at momenta up to 50 gev/c

Bolotov, V.N. ; Isakov, V.V. ; Kakauridze, D.B. ; et al.
Nucl.Phys. B73 (1974) 387-400, 1974.
Inspire Record 94655 DOI 10.17182/hepdata.32318
2 data tables

No description provided.

No description provided.


Measurement of the polarization parameter of the reactions pi- p ---> pi0 n and eta n at 5 and 8 gev/c

Bonamy, P. ; Borgeaud, P. ; Crozon, M. ; et al.
Nucl.Phys. B52 (1973) 392-402, 1973.
Inspire Record 84261 DOI 10.17182/hepdata.50104
2 data tables

No description provided.

No description provided.


Differential Cross-Section for pi- p --> eta0 n at 6.0-GeV/c

The Carleton-Michigan State-Ohio State-Toronto collaboration Shaevitz, M.H. ; Abolins, M.A. ; Dankowych, J.A. ; et al.
Phys.Rev.Lett. 36 (1976) 5, 1976.
Inspire Record 2931 DOI 10.17182/hepdata.21104
1 data table

THE RESOLUTION IN TP IS EVERYWHERE SMALLER THAN THE BIN WIDTH.


The Reaction pi- p ---> eta n at High-Energies

Dahl, O.I. ; Johnson, R.A. ; Kenney, R.W. ; et al.
Phys.Rev.Lett. 37 (1976) 80, 1976.
Inspire Record 108647 DOI 10.17182/hepdata.21028
3 data tables

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

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

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