HEPData Search

Showing 10 of 707 results

Study of the Inclusive Reactions $K^+ p \to p$ X and $K^+ p \to p K^0$ X at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Laurent, J. ; Dujardin, C. ; Grard, F. ; et al.

Nucl.Phys.B 149 (1979) 189-210, 1979.

Inspire Record 132914 DOI 10.17182/hepdata.34832

The inclusive production of protons with laboratory momentum less than 1.2 GeV/ c is studied in the reacion K + p → pX at 32 GeV/ c . A comparison with the 16 GeV/ c data shows ahat the total cross section remains practically constant while the structure function shows a clear energy dependence. The data are compatible with a tripls-Regge expansion and with factorization. About 40% of the events include a K 0 in the final state. The analysis of the K 0 pX sample indicates a sizeable contribution of beam fragmentation and abundant K 890 ∗ and Δ ++ production.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Study of Slow Inclusive Protons in K+ p Interactions at 16-GeV/c

The Birmingham-Brussels-CERN-Mons-Serpukhov collaboration Azhinenko, I.V. ; Chliapnikov, P.V. ; Gorbunov, P.A. ; et al.

Nucl.Phys.B 123 (1977) 493-506, 1977.

Inspire Record 110287 DOI 10.17182/hepdata.35382

The reaction K + p → p + X is studied at a beam momentum of 16 GeV/ c using the events where a slow proton with momentum p lab < 1.2 GeV/ c is identified by its bubble density. The inclusive spectra presented and compared with those obtained in K + p interactions at 32 GeV/ c and K − p interactions at 14.3 GeV/ c . The prominent features associated with a triple-Regge formula are found to be consistent with the data. It is shown that the Δ ++ (1236) production strongly affects the shape of the inclusive spectra and the results of the triple-Regge fit. After removal of events associated with Δ ++ (1236) production, the data are consistent with the dominance of an ffR coupling.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Inclusive Delta++ Production in K+ p Interactions at 8.2-GeV/c and 16-GeV/c

Chliapnikov, P.V. ; Gumenyuk, S.A. ; Rubin, A.M. ; et al.

Nucl.Phys.B 105 (1976) 510-526, 1976.

Inspire Record 101055 DOI 10.17182/hepdata.35924

The reaction K + p→ Δ ++ (1236)+ anything is studied at beam momenta 8.2 and 16 GeV/ c and compared with other Δ ++ producing reactions. We find that the low-mass Δ ++ π − enhancement affects the shapes of Δ ++ inclusive distributions. The triple-Regge formula is found to be consistent with the data. Dual properties of this formula are successfully tested.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of the system K0(S) K0(L) pi- in the pi- p interactions at 40-GeV.

Barkov, B.P. ; Bolonkin, B.V. ; Vladimirsky, V.V. ; et al.

47-50, 1991.

Inspire Record 329124 DOI 10.17182/hepdata.75419

None

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

rivet Analysis
Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2

The CMD-2 collaboration Akhmetshin, R.R. ; Anashkin, E.V. ; Aulchenko, V.M. ; et al.

Phys.Lett.B 509 (2001) 217-226, 2001.

Inspire Record 554522 DOI 10.17182/hepdata.27025

The cross section of the process e+ e- ---> eta gamma has been measured in the 600-1380 MeV c.m. energy range with the CMD-2 detector. The following branching ratios have been determined: B(rho ---> eta gamma) = (3.28 +- 0.37 +- 0.23) 10^{-4}, B(omega ---> eta gamma) = (5.10 +- 0.72 +- 0.34) 10^{-4}, B(phi --> eta gamma) = (1.287 +- 0.013 +- 0.063) 10^{-2}. Evidence for the rho'(1450) ---> eta gamma decay has been obtained for the first time.

1 data table

Table 1

The measured Born cross section for the ETA GAMMA final state.

rivet Analysis
Study of the radiative decay $\phi \to \eta \gamma$ with CMD-2 detector

The CMD-2 collaboration Akhmetshin, R.R. ; Anashkin, E.V. ; Banzarov, V.S. ; et al.

Phys.Lett.B 460 (1999) 242-247, 1999.

Inspire Record 503154 DOI 10.17182/hepdata.27081

Using the $1.9 pb^{-1}$ of data collected with the CMD-2 detector at VEPP-2M the decay mode $\phi \to \eta \gamma$, $\eta \to \pi^+\pi^-\pi^0$ has been studied. The obtained branching ratio is B($\phi \to \eta \gamma) = (1.18 \pm 0.03 \pm 0.06) %$.

1 data table

Table 1

The measured cross section for E+ E- --> PHI < ETA GAMMA>.

rivet Analysis
Study of the process e+e- to pi+pi-pi+pi-pi0 with CMD-2 detector

The CMD-2 collaboration Akhmetshin, R.R. ; Anashkin, E.V. ; Aulchenko, V.M. ; et al.

Phys.Lett.B 489 (2000) 125-130, 2000.

Inspire Record 532970 DOI 10.17182/hepdata.28019

The process e+e- to pi+ pi- pi+ pi- pi0 has been studied in the center of mass energy range 1280 -- 1380 MeV using 3.0 1/pb of data collected with the CMD-2 detector in Novosibirsk. Analysis shows that the cross section of the five pion production is dominated by the contributions of the eta pi+pi- and omega pi+pi- intermediate states.

3 data tables

Table 1

Axis error includes +- 15/15 contribution.

Table 2

Axis error includes +- 15/15 contribution.

Table 3

Axis error includes +- 15/15 contribution.

Inclusive Photoproduction of $\phi$, $K^$ (890) and $K^$ (1420) in the Photon Energy Range 20-{GeV} to 70-{GeV}

The Omega Photon collaboration Atkinson, M. ; Axon, T.J. ; Barberis, D. ; et al.

Z.Phys.C 30 (1986) 521, 1986.

Inspire Record 218609 DOI 10.17182/hepdata.15900

Inclusive photoproduction of ϕ,K*0(890),$\bar K*^0 $ andK*0(1420),$\bar K*^0 $ has been studied in γp collisions with photons of energy 20 to 70 GeV and in the range 0.1≦xF≦0.95 [0.4≦xF≦0.8 for the$\mathop K\limits^{( - )} *$(1420)],xF being the Feynman variable of the vector/tensor meson. The cross-sections for these processes, averaged over the photon energy range and integrated overxF are given. The inclusive ϕ production in the forward direction can be described quantitatively by a triple-Regge model calculation. The remaining ϕ production and the totalK*0(890) and$\bar K*^0 $ production are consistent with a quark fusion picture.

1 data table

Table 1

No description provided.