Date

Observation of the heavy nucleon isobar $N^{∗}_\frac1{2}(3690)$

Bartke, J. ; Czyżewski, O. ; Danysz, J.A. ; et al.
Phys.Lett.B 24 (1967) 118-120, 1967.
Inspire Record 1389636 DOI 10.17182/hepdata.29588

The analysis of the eight-prong interactions of 8 GeV/ c π + with protons indicates the existence of the new heavy nucleon isobar with the mass M = 3.69 GeV and the isospin T = 1 2 .

1 data table

No description provided.


Backward Kp elastic scattering at 3.55 GeV/c

Banaigs, J. ; Berger, J. ; Bonnel, C. ; et al.
Phys.Lett.B 24 (1967) 90462 317-320, 1967.
Inspire Record 1389626 DOI 10.17182/hepdata.29619

Backward elastic K<sup loc="post">+</sup>p and K<sup loc="post">−</sup>p scattering has been measured in the angular interval 168<sup loc="post">o</sup> &lt;θc.m. < 177<sup loc="post">o</sup>. We find <math altimg="si1.gif">(<rm>d</rm>σ/<rm>d</rm>Ω) <inf loc="post"><rm>K</rm><sup loc="post">+</sup><rm>p</rm> → <rm>pK</rm><sup loc="post">+</sup></inf> = 17 ± 4 μ<rm>b</rm>/<rm>sr</rm></math> and <math altimg="si2.gif">(<rm>d</rm>σ/<rm>d</rm>Ω)<inf loc="post"><rm>K</rm><sup loc="post">−</sup><rm>p</rm> → <rm>pK</rm><sup loc="post">−</sup></inf> &lt; 0.6 μ<rm>b</rm>/<rm>sr</rm></math>. K<sup loc="post">+</sup>p elastic scattering exhibits a backward peak.

2 data tables

The data for cos(theta) = 1 is the extrapolation.

The data for cos(theta) = 1 is the extrapolation.


The angular distribution of backward elastically scattered pions at 3.55 GeV/c

Baker, W.F. ; Carlson, P.J. ; Chabaud, V. ; et al.
Phys.Lett. 23 (1966) 605-609, 1966.
Inspire Record 1389621 DOI 10.17182/hepdata.29776

The elastic scattering of 3.55 GeV/ c π + and π − mesons by protons was measured at centre-of-mass angles between 165° and 177°. The angular distributions for 864 events show a steeply rising backward peak for π + p, while the shape is less clear for π − p.

3 data tables

No description provided.

No description provided.

Extrapolations.


Experimental results on the annihilation $\bar{p} p \to \bar{K} K\pi$ at rest; $K^{*}$ production

Armenteros, R. ; Edwards, D.N. ; Jacobsen, T. ; et al.
Phys.Lett. 17 (1965) 170-171, 1965.
Inspire Record 1389661 DOI 10.17182/hepdata.30259

None

1 data table

No description provided.


$K^- + p$ elastic scattering at 3.46 GeV/c

Gordon, J. ;
Phys.Lett. 21 (1966) 117-120, 1966.
Inspire Record 1389617 DOI 10.17182/hepdata.29930

1691 events were fitted to K - p elastic scatters at a K - momentum of 3.46 GeV/ c . The differential cross section as a function of 4 momentum transfer was fitted to exp ( A + Bt + Ct 2 ) with A = 3.7 B = 8.7 ( GeV / c ) −2 and C = 2.0 ( GeV / c ) −4 . The distribution is consistent with zero real part for the forward scattering amplitude.

1 data table

D(SIG)/D(T) was fitted to EXP(CONST+SLOPE*T+SLOPE*T**2).


The transverse and longitudinal cross sections for electroproduction of pions near the Δ(1236)-isobar

Bartel, W. ; Dudelzak, B. ; Krehbiel, H. ; et al.
Phys.Lett.B 27 (1968) 660-662, 1968.
Inspire Record 1389642 DOI 10.17182/hepdata.29204

The reaction e + p → e ′+ N ∗ was studied for four momentum transfers up to 2.34 (GeV/ c ) 2 in the region of the 1236 MeV isobar. An analysis of the data in terms of the cross sections σ T and σ L for the absorption of transverse and longitudinal photons is given for invariant masses of the final pion nucleon system W =1.220 GeV and W =1.350 GeV.

3 data tables

Total errors are presented.

Total errors are presented.

Total errors are presented.


Photodisintegration of the deuteron from 140 to 400 MeV

Buon, J. ; Gracco, V. ; Lefrancois, J. ; et al.
Phys.Lett.B 26 (1968) 595-597, 1968.
Inspire Record 1389633 DOI 10.17182/hepdata.29331

The angular distributions for deuteron photodisintegration have been measured in the energy region 140 – 400 MeV for recoil protons laboratory angles between 30° and 130°. The protons were analyzed in momentum with a magnetic spectrometer and detected by a counter hodoscope.

1 data table

No description provided.


Study of the $e^+ e^-\to\mu^+ \mu^- \gamma$ reaction at center-of-mass energies between 54 and 64 GeV

The VENUS collaboration Yonezawa, Y. ; Abe, K. ; Amako, K. ; et al.
Phys.Lett.B 264 (1991) 212-218, 1991.
Inspire Record 1389624 DOI 10.17182/hepdata.29359

The cross section and forward-backward muon charge asymmetry for the e + e − → μ + μ − γ reaction were measured to be σ =2.82±0.35 pb and A =−0.34±0.10 with the VENUS detector at TRISTAN at 〈√ s 〉=59.2GeV for an integrated luminosity of 53.5 pb −1 . The measured cross section agrees with the theoretical prediction. The asymmetry result is consistent with the electroweak prediction but not with the QED prediction at the level of 2 σ .

2 data tables

No description provided.

No description provided.


Kaonic disintegration of the deuteron near 400 MeV/c

Cline, D. ; Laumann, R. ; Mapp, J. ;
Phys.Lett.B 27 (1968) 110-112, 1968.
Inspire Record 1389657 DOI 10.17182/hepdata.29226

The processes K − d → Σ − p and K − d → Λn have been observed at K − momenta of 340 MeV/c and 400 MeV/c. The cross sections for these processes are: σ ( Σ − p) = 200 ± 30 μ b at 400 MeV/c, σ ( Λ n) = 200 ± 30 μ b at 400 MeV/c, σ ( Σ − p) = 300 ± 100 μ b at 340 MeV/c, σ ( Λ n) = 360 ± 150 μ b at 340 MeV/c.

1 data table

No description provided.


$K^+ n$ charge exchange reaction at 3 GeV/c

Goldschmidt-Clermont, Y. ; Henri, V.P. ; Jongejans, B. ; et al.
Phys.Lett.B 27 (1968) 602-604, 1968.
Inspire Record 1389631 DOI 10.17182/hepdata.29205

About 100 000 pictures, with an average of ∼12K + per picture, taken in the 81 cm Saclay deuterium bubble chamber exposed to a separated 3 GeV/c K + beam have been analysed for the reaction K + d→K 0 pp in the 1-prong V 0 and 2-prong V 0 topologies. 214 such events have been found allowing a determination of the differential cross-section. A comparison with the prediction of Rarita and Schwarzschild yields reasonable agreement; in particular a large real part is inferred for the amplitude for the reaction K + n→K 0 p.

2 data tables

The errors are statistical only.

The errors are statistical only. To evaluate the cross section on neutron thE data are divided on (1-FORMFACTOR(C=DEUT). For definition of the formfactor see L. Durand, Phys. Rev. 115 (1959) 1020.