Sanders, M.P.
[2.0, 5.0]
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EXCLUSIVE PRODUCTION OF K+ K- pi+ pi- IN PHOTON-PHOTON COLLISIONS

The TPC/Two Gamma collaboration Aihara, H. ; Alston-Garnjost, M. ; Armitage, J.C. ; et al.
Phys.Rev.Lett. 54 (1985) 2564, 1985.
Inspire Record 213402 DOI 10.17182/hepdata.20345

We report a measurement of the reaction γγ→K+K−π+π− in both tagged and untagged events at PEP. The cross section rises with invariant γγ mass to about 15 nb at 2 GeV and falls slowly at higher masses. We find clear evidence for the processes γγ→φπ+π− and γγ→K*0(892)Kπ. Upper limits (95% C.L.) of 1.5 and 5.7 nb in the mass range from 1.7 to 3.7 GeV are obtained for φρ0 and K*0K¯*0 production, respectively.

8 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

Untagged sample, (non-resonant).

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Determination of the photoproduction phase of rho0 mesons

Alvensleben, H. ; Becker, U. ; Chen, M. ; et al.
Nucl.Phys.B 25 (1971) 342-350, 1971.
Inspire Record 68820 DOI 10.17182/hepdata.33835

We have measured large-angle electron-positron pairs from the reaction γ +Be → Be+e + +e − in the e + e − invariant-mass region of 610 < m < 850 MeV/ c 2 . The phase of the photoproduction amplitude of the ϱ-meson at 4.1 – 6.1 GeV was found to deviate from pure imaginary by 11.8° ± 4.4° which corresponds to a ratio of the real to imaginary ϱ-nucleon amplitude of β = −0.2 ± 0.1.

1 data table
Table 1

No description provided.


$K^- p$ elastic scattering at 3 GeV/c

Focacci, M.N. ; Focardi, S. ; Giacomelli, G. ; et al.
Phys.Lett. 19 (1965) 441-444, 1965.
Inspire Record 851194 DOI 10.17182/hepdata.30175

None

2 data tables
Table 1

No description provided.

Table 2

Only statistical errors are given.