Adler, C.
Strange production
[2.0, 5.0]
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Measurement of k*- production in the reaction k- p ---> k*- p

Blieden, H.R. ; Finocchiaro, G. ; Kirz, J. ; et al.
Phys.Lett.B 39 (1972) 668-670, 1972.
Inspire Record 75745 DOI 10.17182/hepdata.41300

The K ∗− spectrum in the reaction K − +p → K ∗− +p has been measured at beam momenta 10.9, 13.4 and 15.9 GeV/ c using the missing mass technique. Production of the L(1770), and a Q-K ∗ (1420) enhancement are observed. Differential cross sections in the range of momentum transfer 0.12 < | t pp | < 0.40 (GeV/ c ) 2 are given. The L meson is observed with a width Γ = 100 ± 26 MeV. The mass spectrum between the L and 2.5 GeV does not show significant structure.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Single-pion production in k+ p interactions at 4.6 gev/c

Fu, C. ; Macnaughton, J. ; Trilling, G.H. ;
Nucl.Phys.B 28 (1971) 528-540, 1971.
Inspire Record 68682 DOI 10.17182/hepdata.33570

A study of K + p interactions at 4.6 GeV/ c leading to single-pion production is presented. Cross sections for the final states KΔ, K ∗ (891)p, K ∗ (1420)p are given. Comparison of the results of this study with published K − p and K − n data at the same momentum indicates that corresponding K − cross sections are significantly smaller, but other features such as momentum transfer distributions and density matrix elements are very similar.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

NORMALIZATION...FROM MASS-CUT BUT RENORMALIZED TO GIVE SAME INTEGERATED CROSS-SECTION AS OVERALL BREIT-WIGNER FIT.

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Elastic scattering of positive kaons on polarized protons between 0.87 and 2.74 gev/c. results and phase-shift analysis

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 30 (1971) 273-305, 1971.
Inspire Record 68610 DOI 10.17182/hepdata.33401

Polarization and differential cross-section data at 16 momenta between 0.86 and 2.74 GeV/ c are presented. (Preliminary data on some of the momenta have been published earlier.) In an energy-independent phase-shift analysis from threshold up to 2.5 GeV/ c , resonant-like as well as non-resonant solutions are found for the P 3 wave. An helicity flip-non-flip decomposition of the partial waves partly supports the indications found in the analyses of other reactions that the pomeron is built up mainly from s -channel helicity non-flip contributions.

16 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Observation of k(l) - k(s) regeneration from liquid hydrogen. aachen-cern-turin collaboration,

Darriulat, P. ; Grosso, C. ; Holder, M. ; et al.
Phys.Lett.B 33 (1970) 433-437, 1970.
Inspire Record 69387 DOI 10.17182/hepdata.28718

The K L K S transmission regeneration of a K L beam traversing a liquid hydrogen target has been observed over the momentum interval 3.0–6.0 GeV/ c . Results are in good agreement with predictions based on dispersion relations.

2 data tables
Table 1

Regeneration amplitude.

Table 2

No description provided.


Pi+- p elastic scattering and pi+ p ---> k+ sigma+ at 5.0 gev/c near -t=3.0(gev/c)-squared

Akerlof, C.W. ; Caldwell, P.K. ; Kalbaci, P. ; et al.
Phys.Rev.Lett. 27 (1971) 219-222, 1971.
Inspire Record 68949 DOI 10.17182/hepdata.21476

We have measured the reactions π±p→π±p and π+p→K+Σ+ at 5.0 GeV/c in the region 2.2<−t<3.5 (GeV/c)2. We find the minimum cross section of the dip at −t=2.8 (GeV/c)2 in π+p elastic scattering to be 0.16 ± 0.05 μb/GeV2. The π−p differential cross section exhibits similar structure, while the π+p→K+Σ+ channel shows a steady decline in cross section as |t| increases. The polarization of the Σ+ remains large and positive to at least −t=2.8 (GeV/c)2.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the double-charge-exchange reactions pi- p ---> k+ sigma- and k- p ---> pi+ sigma -

Akerlof, C.W. ; Caldwell, P.K. ; Coffin, C.T. ; et al.
Phys.Rev.Lett. 27 (1971) 539-542, 1971.
Inspire Record 68930 DOI 10.17182/hepdata.21463

The forward cross sections for the reactions π−p→K+Σ− and K−p→π+Σ− have been determined for incident particle momenta in the range of 2.75 to 3.50 GeV/c, and an upper limit was established at 5.00 GeV/c. These measurements show that the double-charge-exchange process π−p→K+Σ− is suppressed by a factor of 1500 at 3 GeV/c relative to the single-exchange reaction π+p→K+Σ+.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


ASYMMETRY IN pi+ PHOTOPRODUCTION FROM A POLARIZED TARGET AT 5-GeV AND 16-GeV

Morehouse, Charles C. ; Borghini, M. ; Chamberlain, Owen ; et al.
Phys.Rev.Lett. 25 (1970) 835, 1970.
Inspire Record 60947 DOI 10.17182/hepdata.3373

We have measured the asymmetry of the cross section for γp→π+n from a polarized target at 5 and 16 GeV. The range of four-momentum transfer was 0.02<~−t<~1.0 GeV2. The π+ mesons were produced in a polarized butanol target and detected with the Stanford Linear Accelerator Center 20−GeVc spectrometer. A sizable asymmetry was found at both 5 and 16 GeV, a typical value being -0.6 near −t=0.3 GeV2. A small amount of data on the asymmetry of other photoproduction processes was also obtained.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Production of xi- and antixi+ particles in k+ p collisions at 12.7 gev/c

Stone, S.L. ; Berlinghieri, J.C. ; Bromberg, C. ; et al.
Phys.Lett.B 32 (1970) 515-518, 1970.
Inspire Record 63098 DOI 10.17182/hepdata.28710

The cross section for the production of Ξ + particles in K + p interactions at 12.7 GeV/ c is 10 ± 3 μ b; the Ξ − production cross section is 2.5 ± 1.0 μ b; the upper limit on Ω − or Ω + production is 0.4 μb. The Ξ − are produced preferentially in the backward direction in the CM system while the Ξ + are produced mainly forward. The mass and lifetime of the Ξ + agree with the accepted values for the Ξ − hyperon.

1 data table
Table 1

Cross sections have been corrected for the detection probability of all observed hyperons involved in these reactions.


K- p charge exchange at 3.95 gev/c

Moscoso, L. ; Hubbard, J.R. ; Leveque, A. ; et al.
Phys.Lett.B 32 (1970) 513-514, 1970.
Inspire Record 63099 DOI 10.17182/hepdata.28711

The charge excharge reaction K − p → K 0 n has been studied in a event/μb exposure of the CERN 2m hydrogen bubble chamber to a 3.95 GeV/ c K − beam. The differential cross section d σ /d t exhibits a change of slope at −1 ≈ 0.8 GeV 2 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Pi-minus + p ---> k-neutral + lambda/sigma-neutral associated production in the forward direction at 6,8,10 and 11.2 gev/c

Bertolucci, E. ; Mannelli, I. ; Pierazzini, G. ; et al.
Lett.Nuovo Cim. 2S1 (1969) 149-155, 1969.
Inspire Record 58290 DOI 10.17182/hepdata.37419

None

2 data tables
Table 1

Only statistical errors are given.

Table 2

Only statistical errors are given.