Paul, E.
K+ P --> K*(892)+ P
RHO
[2.0, 5.0]
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Forward $K^*$+ (892) Production in $K^+ p \to \pi^+ K^0_S p$ at 12.7-{GeV}/$c$

Sacharidis, E.J. ; Blum, W. ; Dietl, H. ; et al.
Nucl.Phys.B 179 (1981) 9-32, 1981.
Inspire Record 154321 DOI 10.17182/hepdata.34347

We have measured 618 K + p → π + K S 0 p events at 12.7 GeV/ c incident lab momentum, mass range 790 ⩽ m π + K s 0 ⩽ 990 MeV and t range 0.01 ⩽ − t ⩽ 0.60 (GeV/ c ) 2 . The π + K S 0 mass spectrum is dominated by the K ∗+ (892) resonance and a Breit-Wigner fit yields a mass m = 893.5 ± 1.1 MeV and a width Γ = 33.2 ± 4.1 MeV which is much narrower than measured hitherto. The t distribution of K ∗+ (892) events shows a dip in the forward direction and an exponential fall off thereafter, consistent with dominance of helicity flip amplitudes. The spin density matrix is almost saturated by ρ 11 and ρ 1−1 which are very close to their maximum allowed value of 1 2 throughout the measured t range except in the very forward direction where ρ 00 and Re ρ 10 deviate from zero. Natural parity exchanges, therefore, dominate with unnatural parity exchanges being restricted to a small region in the forward direction. A Regge pole analysis of the differential cross sections of the present measurement in conjunction with previously measured total cross sections supports the f-coupled-pomeron hypothesis.

3 data tables
Table 1

SUBTRACTED BACKGROUND IS PHASE SPACE.

Table 2

SUBTRACTED BACKGROUND IS AN INCOHERENT S-WAVE WITH EXPONENTIAL T-DEPENDENCE WITH SLOPE OF 6 GEV**-2.

Table 3

Axis error includes +- 15/15 contribution.


Resonance Production in the Reaction K+ p --> K0 p pi+ at 5-GeV/c, 8.25-GeV/c and 16-GeV/c

Colley, D.C. ; Carney, J.N. ; James, M.F. ; et al.
Nucl.Phys.B 110 (1976) 333-354, 1976.
Inspire Record 108770 DOI 10.17182/hepdata.35742

We present a systematic analysis of the production of K ∗+ (892) and Δ ++ (1236) resonances in the K + p → K 0 p π + reaction at 5, 8.25 and 16 GeV/ c . We have measured total cross sections, differential cross sections, density matrix elements and examined resonance production mechanisms in terms of the exchange of states with definite naturality. Some results on the reaction K + p → K ∗+ (1420) p are also given.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Quasi-Two-Body K+ n Interactions Below 1.5-GeV/c

The Bologna-Glasgow-Rome-Trieste collaboration Giacomelli, G. ; Mandrioli, G. ; Minguzzi-Ranzi, A. ; et al.
Nucl.Phys.B 111 (1976) 365-396, 1976.
Inspire Record 108695 DOI 10.17182/hepdata.35713

The production and decay of the quasi-two-body final states KΔ(1232) and K ∗ (892)N produced in K + d interactions below 1.5 GeV/ c have been studied in a bubble chamber experiment.

10 data tables
Table 1

RESONANCE CROSS SECTIONS COMPUTED BY MULTIPLYING THE PRODUCTION PERCENTAGES GIVEN BY THE INTERFERENCE MODEL BY THE CHANNEL CROSS SECTIONS GIVEN IN G. GIACOMELLI ET AL., NP B37, 577 (1972).

Table 2

DIFFERENTIAL CROSS SECTIONS FROM DEUTERIUM DATA, NORMALIZED TO THE EXPERIMENTAL INTEGRATED CROSS SECTIONS QUOTED IN T 2.

Table 3

LEGENDRE COEFFICIENTS FROM DEUTERIUM DATA.

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Properties of the inelastic k+ p reactions between 1.2 and 1.7 gev/c

Berthon, A. ; Montanet, L. ; Paul, E. ; et al.
Nucl.Phys.B 63 (1973) 54-92, 1973.
Inspire Record 83879 DOI 10.17182/hepdata.32479

The observation of 70 000 K 0 p π + events produced with K + incident momenta of 1.21, 1.29, 1.38 and 1.69 GeV/ c allows a detailed description of the production and decay of the Δ(1236) and K ∗ (892) resonances which dominate the K 0 p π + final state. No striking variations with energy are observed. The associated production of Δ and K ∗ near threshold shows striking similarities with the same production at higher energy.

22 data tables
Table 1

INCLUDING 1 PCT SYSTEMATIC ERROR ON CORRECTIONS.

Table 2

FIT 'A', ALLOWING FOR DELTA-K* INTERFERENCE (TWO OTHER FITS GIVEN IN PAPER).

Table 3

S-CHANNEL HELICITY FRAME.

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