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Inclusive $K^*$0 (890) and $\bar{K}^*$0 (890) Production on Beryllium by $K^-$ and $\pi^-$ at 175-{GeV}

The ACCMOR & Amsterdam-Bristol-CERN-Cracow-Munich-Rutherford collaborations Bailey, R. ; Bardsley, D.G. ; Belau, E. ; et al.
Z.Phys.C 24 (1984) 111, 1984.
Inspire Record 200772 DOI 10.17182/hepdata.16302

The reactions\(K^ -Be \to {}^(\bar K^) *^0 (890)X,\pi ^ -Be \to {}^(\bar K^) *^0 (890)X\), have been studied in a 175 GeV unseparated hadron beam in the kinematic range 0<xF<1.0 andpT2<5 GeV2. Integrated cross-sections and the dependence of the cross-sections on the longitudinal and transverse momentum are presented, together with quark counting rules predictions. The nuclear dependence ofK− fragmentation intoK*0(890) with respect to Feynmanx is investigated from hydrogen to beryllium.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Forward Particle Production in $\pi^- p$ and $K^- p$ Collisions at 58-{GeV}/$c$ and Comparison With Quark Models

The ACCMOR collaboration Pauß, F. ; Gonzalez-Arroyo, A. ; Ochs, W. ; et al.
Z.Phys.C 27 (1985) 211, 1985.
Inspire Record 206988 DOI 10.17182/hepdata.16120

We present single inclusive π±, π0 andK± spectra in the forward fragmentation region (x>0.2,pT<1.5 GeV/c) as well as correlations between two charged particles. The data were recorded in an unseparated negative hadron beam at the CERN SPS using a large acceptance forward spectrometer. Our maasurements are compared in detail with several models which emphasise the role of the beam valence quarks in this production process. The connection to measurements at largepT is also investigated.

3 data tables
Table 1

ERRORS INCLUDE SYSTEMATIC ERRORS BUT NOT OVERALL NORMALISATION UNCERTAINTY OF 8PCT.

Table 2

ERRORS INCLUDE SYSTEMATIC ERRORS BUT NOT OVERALL NORMALISATION UNCERTAINTY OF 8PCT.

Table 3

ERRORS INCLUDE SYSTEMATIC ERRORS BUT NOT OVERALL NORMALISATION UNCERTAINTY OF 8PCT.


Upper Limits for Charm Production in 150-{GeV} $p$ Be Interactions

The ACCMOR collaboration Bailey, R. ; Becker, H. ; Belau, E. ; et al.
Nucl.Phys.B 239 (1984) 15-26, 1984.
Inspire Record 193967 DOI 10.17182/hepdata.33882

A search has been made for the hadronic production of charmed baryons and mesons with a large aperture forward magnetic spectrometer using 150 GeV protons originating from the CERN-SPS. A prompt electron trigger was used as a signature for charm. Upper limits at 90% confidence level have been obtained for the production of Λ c + D 0 , D 0 D + and D − : σ(Λ c ) ⩽ 8 μ b , σ( D 0 ) ⩽ 64 μ b , σ( D 0 ) < 37 μ b , σ( D + ) ⩽ 51 μ b and σ( D − ) ⩽ 49 μ b per nucleon, assuming linear A dependence. Systematic errors due to uncertainties in branching ratios and to model dependence of the acceptance calculation are discussed.

1 data table
Table 1

No description provided.


Observation of $D^*$+- and ($\bar{D}$)0 / $D^\pm$ Production in High-energy $\pi^-$ Be Interactions at the {SPS}

The ACCMOR & Amsterdam-Bristol-CERN-Cracow-Munich-Rutherford collaborations Bailey, R. ; Bardsley, D.G. ; Becker, H. ; et al.
Phys.Lett.B 132 (1983) 230-236, 1983.
Inspire Record 190658 DOI 10.17182/hepdata.30633

An experiment has been performed to search for associated hadronic production of charmed mesons, using a large-aperture forward magnetic spectrometer setup in a π − beam at the CERN SPS. A prompt electron trigger was used to select events containing a pair by charmed particles. D mesons have been identified by reconstruction of hadronic decay modes such as Kπ, Kππ. Data have been taken at 120, 175, and 200 GeV, The D D cross section measured at 175 200 GeV is σ( D D ) = (48 ± 15) μ b with a systematic uncertainty of ±50%. The energy dependence of the cross section is measured to be σ( D D ) [120 GeV )/σ( D D [175/200 GeV ] = 0.62 ± 0.34 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Inclusive $\phi$ Meson Production in $K^-$, $\bar{p}$ and $p$ Be Interactions at 100-{GeV}/$c$

The ACCMOR collaboration Daum, C. ; Hertzberger, L.O. ; Hoogland, W. ; et al.
Z.Phys.C 18 (1983) 1, 1983.
Inspire Record 183362 DOI 10.17182/hepdata.16360

Inclusive ϕ-meson production has been measured for 100 GeV/cK−,\(\bar p\) andp incident on a Be target. Differential cross sectionsdσ/dxF anddσ/dp⊥2 are presented in the interval 0.075<xF<0.225 and 0<p⊥<1 GeV/c respectively. The shape of thedσ/dxF distributions agrees with predictions from a quark fusion model. Comparison with cross sections measured on a hydrogen target in the samexF andp⊥ range suggest a linearA-dependence fromA=1 toA=9.

1 data table
Table 1

No description provided.