Study of $K^+ K^-$ Production in $\pi^+ d$ Interactions at 10-{GeV}/$c$, and Evidence for a $J(P$) = 7- Resonance, M (2750), Decaying Into $K^+ K^- \pi^+$

Denney, D.L. ; Crawley, H.B. ; Firestone, A. ; et al.
Phys.Rev.D 28 (1983) 2726, 1983.
Inspire Record 13515 DOI 10.17182/hepdata.23786

We have studied the reactions π+n→K+K−p, π+p→K+K−Δ++, and π+p→(K+K−π+)p in 10-GeV/c π+d interactions using the large-aperture solenoid spectrometer at SLAC. We measure the cross sections times branching ratios for the production of the known meson resonances f(1270), g(1690), and h(2040). We also observe a new resonance with mass 2747±32 MeV, width 195±75 MeV, and production cross section times branching ratio into K+K−π+ of 0.84±0.08 μb. The data are consistent with the quantum numbers of this state being I=1, JP=7−.

4 data tables

No description provided.

No description provided.

No description provided.

More…

Channel Separation Using the Transversity Parameter in the pi+ n --> p pi+ pi- Reaction at 9-GeV/c

Armenise, N. ;
Lett.Nuovo Cim. 22 (1978) 453-458, 1978.
Inspire Record 135352 DOI 10.17182/hepdata.37381

None

2 data tables

RELATIVISTIC BREIT-WIGNER FIT WITH POLYNOMIAL BACKGROUND.

FIT TO D(SIG)/DT FROM DATA IN G REGION.


pi pi Scattering and pi+ d Interactions at 7-GeV/c

Carroll, J.T. ; Matthews, J.A.J. ; Walker, W.D. ; et al.
Phys.Rev.D 10 (1974) 1430, 1974.
Inspire Record 91650 DOI 10.17182/hepdata.25036

Using bubble-chamber data on the reactions π+d→pspπ0π0, π+d→pspπ+π−, and π−p→nπ+π− at 7 GeV/c incident π momentum, π−π phase shifts are determined for 0.6<M(ππ)<1.5 GeV/c2. An I=0S-wave resonance is observed in the f0 peak region of M(ππ). Constructive ρ−ω interference is found in the reaction π+n→pπ+π− and evidence is presented for some specifically deuteron effects in the data with large spectator-proton momentum.

6 data tables

TWO-PRONG CROSS SECTIONS IN DEUTERIUM WITH SPECTATOR PROTON MOMENTUM CUT AT 0.3 GEV/C.

NOTE THAT THE LOW-T DATA POINTS (<0.1 GEV**2) SHOULD BE CORRECTED FOR PAULI EXCLUSION IN DEUTERIUM.

FROM FIT WITH BREIT-WIGNER RESONANCES PLUS PHASE SPACE.

More…

Resonance Production in the Reactions pi+ d --> p(s) p pi+ pi- and pi+ d --> p(s) p pi+ pi- pi0 at 11.7-GeV/c

Kemp, D. ; Lotts, A.P. ; Scarrott, S.M. ; et al.
Nuovo Cim.A 27 (1975) 155-173, 1975.
Inspire Record 102951 DOI 10.17182/hepdata.37719

Results are presented for the reactions (1) π+n→pπ+π−, (2) π+n→pπ+π−π0, at an incident pion beam momentum of 11.7 GeV/c. Both reactions show considerable resonance production. Reaction (1) is dominated by ρ0 and f0 production and there is evidence for the variation of the ρ00 width with momentum transfer. Decay angular distributions are presented for the dipion system observed in reaction (1). Reaction (2) shows the production of both dipion and tripion resonances and there is evidence for the associated production of\(\mathcal{N}\)-resonances with the dipion resonances.

4 data tables

No description provided.

DN/DT PLOTTED. ALL RESONANCES ARE DEFINED JUST BY MASS CUTS.

RHO0 MASS REGION OF DIPION SYSTEM. NUMERICAL VALUES TAKEN FROM TABLE 6.1 OF THE THESIS BY D. KEMP (DURHAM 1974).

More…