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Inclusive Neutral Kaon Production in 70-{GeV}/$c K^+ P$ Interactions

Barth, M. ; De Clercq, C. ; De Wolf, E. ; et al.

Nucl.Phys.B 191 (1981) 39-62, 1981.

Inspire Record 172451 DOI 10.17182/hepdata.34243

The inclusive production of neutral kaons in 70 GeV/ c K + p interactions is studied with the CERN BEBC bubble chamber. The (semi-)inclusive cross sections are interpreted in terms of the various strangeness channels leading to neutral kaon production. The invariant inclusive cross section for kaon production is studied as a function of p t 2 and the Feynman variable x . The latter distributions are considered both “raw” and corrected for the presence of K 0 's resulting from K ∗ decay. They are compared with the predictions expected from the Regge-Mueller formalism, the recombination model and fragmentation models.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Production of $\rho^\pm$, $G^\pm$(1700), $A2^\pm$, $K^{\pm}$(890) and $K^{\pm}$(1420) at 50-{GeV}/c

Delfosse, A. ; Dorsaz, P.A. ; Extermann, P. ; et al.

Nucl.Phys.B 183 (1981) 349-366, 1981.

Inspire Record 170363 DOI 10.17182/hepdata.34280

Mesons decaying into π 0 or η and one charged meson were studied using a liquid-argon calorimeter in a non-magnetic double-arm spectrometer. Cross sections and energy dependences are presented. The ϱ ± production mechanisms are discussed in detail: ω and π exchange contribute the largest fractions, but also A 2 exchange is present. ϱ ± production by ω exchange is shown to follow the energy behaviour predicted by the Regge trajectory α ω ( t ) = 0.4 − | t |.

2 data tables

Table 1

Axis error includes +- 0.0/0.0 contribution (13 TO 25////STATISTICAL ERRORS ARE SMALLER THAN THE SYSTEMATIC ERRORS).

Table 2

No description provided.

Diffraction Dissociation of $\pi^\pm$, $K^\pm$, and $\rho^\pm$ at 100-{GeV}/c and 200-{GeV}/c

Cool, R.L. ; Goulianos, Konstantin A. ; Segler, S.L. ; et al.

Phys.Rev.Lett. 47 (1981) 701-704, 1981.

Inspire Record 171271 DOI 10.17182/hepdata.20623

We report differential cross sections for h+p→X+p (h=π±,K±,p±) at 100 and 200 GeV/c in the region 0.025<|t|<0.095 (GeV/c)2 and MX2s<0.1.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

The Effective Energy Dependence of the Charged Particle's Multiplicity in $P / \pi^+ / K^+$ Interactions on Protons at 147 GeV/c

Brick, D. ; Rudnicka, H. ; Shapiro, A.M. ; et al.

Phys.Lett.B 103 (1981) 241-246, 1981.

Inspire Record 170358 DOI 10.17182/hepdata.6707

The energy dependence of the average of the charged multiplicity and its dispersion in π + /K + /p interaction on protons at 147 GeV/ c is found to be the same as in e + e − annihilations if an “effective energy” variable is used instead of the total energy. The effective energy S eff is defined as the invariant mass of all secondaries left after the two leading particles have been removed. Fitting the expression aS eff b to the average charge multiplicity 〈 n ch 〉, we find the power b to be in good agreement with the value of 0.25 predicted by Fermi's statistical model and by Landau's hydrodynamical model.

6 data tables

Table 1

BINS IN WEFF SELECTED SO AS TO YIELD 200 EVENTS IN EACH BIN.

Table 2

200 EVENTS IN EACH BIN IN WEFF.

Table 3

50 EVENTS IN EACH BIN IN WEFF.

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Experimental Results on $J/\psi$ Production by $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ Incident on Hydrogen at 39.5-{GeV}/$c$

Corden, M.J. ; Dowell, J.D. ; Garvey, J. ; et al.

Phys.Lett.B 98 (1981) 220-224, 1981.

Inspire Record 155716 DOI 10.17182/hepdata.5488

J/ ψ production at 40 GeV/ c by π ± , K ± , p and p incident on hydrogen has been studied and results compared with those obtained on tungsten in the same experiment. On hydrogen, J/ψ cross-section ratios relative to π − have been measured to be (for x F > 0) σ(π − ) : σ(π + ) : σ( p ) : σ( p ) = 1 : (0.78 ± 0.09) : (0.83 ± 0.35) : (0.07 ± 0.04) . The suppression of the proton induced cross sections shows the importance of calence quark-antiquark fusiin J/ψ production at this energy (i.e. M J 2 / ψ / s =0.13).

3 data tables

Table 1

ERRORS ONLY STAT.

Table 2

ERRORS ONLY STAT.

Table 3

No description provided.

Inclusive $\pi^0$ and $\eta$ Production From Kaon, Proton and Anti-proton Beams in the Triple Regge Region

Kennett, R.G. ; Barnes, A.V. ; Fox, G.C. ; et al.

Nucl.Phys.B 177 (1981) 1-20, 1981.

Inspire Record 9595 DOI 10.17182/hepdata.1342

Data are presented on the reactions K ± p → π 0 X, K ± p → η X, pp → π 0 X and p p → π 0 X in the kinematic region with s ⋍ 200 GeV 2 , x ≳ 0.7 and − t ≲ 1 GeV 2 . The data agree well with the predictions of triple-Regge theory and the K ∗ and nucleon Regge trajectories extracted from the data agree with the linear trajectories extrapolated from the particle poles.

15 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Elastic Scattering of $p^\pm$, $\pi^\pm$ and $K^\pm$ on Protons at High-energies and Small Momentum Transfer

Cool, R.L. ; Goulianos, Konstantin A. ; Segler, S.L. ; et al.

Phys.Rev.D 24 (1981) 2821, 1981.

Inspire Record 156145 DOI 10.17182/hepdata.24029

We report on a measurement of elastic differential cross sections for p±p, π±p, and K±p at 100 and 200 GeV/c in the range 0.03<|t|<0.10 (GeV/c)2. Our data display a simple exponential dependence which is consistent with other measurements in this t region or with extrapolations from higher t.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

$K^\pm p$ Large Angle Elastic Scattering at 20-{GeV}/$c$ and 30-{GeV}/$c$

The Annecy(LAPP)-CERN-Bohr Inst-Genoa-Oslo-London collaboration Almas, R. ; Baglin, C. ; Bock, R. ; et al.

CERN-EP/80-79, 1980.

Inspire Record 153574 DOI 10.17182/hepdata.49655

None

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

The Real Part of the Forward Elastic Nuclear Amplitude for p p, anti-p p, pi+ p, pi- p, K+ p, and K- p Scattering Between 70-GeV/c and 200-GeV/c

Fajardo, L.A. ; Majka, R. ; Marx, J.N. ; et al.

Phys.Rev.D 24 (1981) 46, 1981.

Inspire Record 152596 DOI 10.17182/hepdata.24028

We have measured the elastic cross section for pp, p¯p, π+p, π−p, K+p, and K−p scattering at incident momenta of 70, 100, 125, 150, 175, and 200 GeV/c. The range of the four-momentum transfer squared t varied with the beam momentum from 0.0016≤−t≤0.36 (GeV/c)2 at 200 GeV/c to 0.0018≤−t≤0.0625 (GeV/c)2 at 70 GeV/c. The conventional parametrization of the t dependence of the nuclear amplitude by a simple exponential in t was found to be inadequate. An excellent fit to the data was obtained by a parametrization motivated by the additive quark model. Using this parametrization we determined the ratio of the real to the imaginary part of the nuclear amplitude by the Coulomb-interference method.

1 data table

Table 1

No description provided.

Diffraction Dissociation, Resonances and Deck Mechanism in the $K \omega$ Systems of the Reactions $K^+^- p \to$ ($K^+^- \omega$) $p$

The Aachen-Berlin-CERN-London-Vienna & Birmingham-Brussels-CERN-Mons-Serpukhov collaborations Otter, G. ; Rudolph, G. ; Wieczorek, H. ; et al.

Nucl.Phys.B 181 (1981) 1-21, 1981.

Inspire Record 153195 DOI 10.17182/hepdata.34348

A study is presented of the reactions K + p→(K + ω )p at 8.25 and 16 GeV/ c and K − p→(K − ω )p at 10 and 16 GeV/ c and comparison is made with K + results at 10 GeV/ c and K − at 7.3 GeV/ c . The (K + ω) and (K − ω) mass spectra both present a strong enhancement very near threshold, while a second peak at ∼1.7 GeV is evident only with incident K − at the lower energies. The threshold peak has very weak energy dependence and is mostly due to the 1 + S state which is produced conserving s -channel helicity. It is suggested that this is another decay mode of the resonance Q 1 (1290) known to decay mainly into Kϱ. The ratio of the Q 1 coupling constants to the Kω and Kϱ decay channels, R ω = g K ω 2 / g K ϱ 2 is determined to be 0.21±0.04. The enhancement at 1.7 GeV is predominantly, but not exclusively, due to the 2 − state. While the K + and K − induced reactions give basically similar results, small differences are observed that can be qualitatively explained in the framework of the Deck model.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

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Inclusive Neutral Kaon Production in 70-{GeV}/$c K^+ P$ Interactions

Production of $\rho^\pm$, $G^\pm$(1700), $A2^\pm$, $K^{\pm}$(890) and $K^{\pm}$(1420) at 50-{GeV}/c

Diffraction Dissociation of $\pi^\pm$, $K^\pm$, and $\rho^\pm$ at 100-{GeV}/c and 200-{GeV}/c

The Effective Energy Dependence of the Charged Particle's Multiplicity in $P / \pi^+ / K^+$ Interactions on Protons at 147 GeV/c

Experimental Results on $J/\psi$ Production by $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ Incident on Hydrogen at 39.5-{GeV}/$c$

Inclusive $\pi^0$ and $\eta$ Production From Kaon, Proton and Anti-proton Beams in the Triple Regge Region

Elastic Scattering of $p^\pm$, $\pi^\pm$ and $K^\pm$ on Protons at High-energies and Small Momentum Transfer

$K^\pm p$ Large Angle Elastic Scattering at 20-{GeV}/$c$ and 30-{GeV}/$c$

The Real Part of the Forward Elastic Nuclear Amplitude for p p, anti-p p, pi+ p, pi- p, K+ p, and K- p Scattering Between 70-GeV/c and 200-GeV/c

Diffraction Dissociation, Resonances and Deck Mechanism in the $K \omega$ Systems of the Reactions $K^+^- p \to$ ($K^+^- \omega$) $p$