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Measurement of $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \gamma \gamma$ at Energies Up to 36.7-{GeV}

The CELLO collaboration Behrend, H.J. ; Chen, C. ; Field, J. ; et al.
Phys.Lett.B 103 (1981) 148-152, 1981.
Inspire Record 165288 DOI 10.17182/hepdata.31169

The differential cross sections of the reactions e + e − → e + e − and e + e − → λλ are measured at energies between 33.0 and 36.7 GeV. The results agree with the predictions of quantum electrodynamics. A comparison with the standard model of electroweak interaction yields sin 2 θ W = 0.25 ± 0.13.

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


Cross sections of He-4 interaction with protons at 5-GeV/c.

Blinov, A.V. ; Chadeyeva, M.V. ; Grechko, V.E. ; et al.
Phys.Atom.Nucl. 64 (2001) 907-909, 2001.
Inspire Record 508748 DOI 10.17182/hepdata.31229

The total and topological 4Hep cross sections as well as the cross sections of the separate 4Hep interaction channels and the differential cross sections of the elastic 4Hep scattering were measured using the 2m hydrogen bubble chamber exposed to a separated beam of alpha-particles from the ITEP synchrotron at 5 GeV/c (the kinetic energy of the initial protons in the nuclear rest frame was 620 MeV). The data obtained have been compared with the results of the previous experiments and with the theoretical predictions based on the Glauber-Sitenko multiple-scattering theory.

2 data tables match query
Table 2

Only statistical errors are presented.

Table 3

Only statistical errors are presented.


Anti-proton - deuteron low-energy cross-section

Bizzarri, R. ; Guidoni, P. ; Marcelja, F. ; et al.
Nuovo Cim.A 22 (1974) 225-250, 1974.
Inspire Record 80565 DOI 10.17182/hepdata.37735

About 45000 interactions of antiprotons of kinetic energy between 57 and 170 MeV have been measured in a deuterium bubble chamber. Total and annihilation cross-sections have been determined at 9 values of the antiproton energy together with the differential crosssection dσ/dt for scattering events. In spite of the peculiar behaviour of the deuteron target at these low energies a reliable measure of the antiproton-neutron annihilation cross-section has been obtained.

2 data tables match query
Table 1

INELASTIC (ANNILATION + CHARGE EXCHANGE), SCATTERING (ELASTIC + INELASTIC) AND TOTAL CROSS SECTIONS. AUTHORS ALSO GIVE TOPOLOGICAL DECOMPOSITION OF THESE CROSS SECTIONS.

Table 2

SCATTERED ANTIPROTON ANGULAR DISTRIBUTION. THE OPTICAL POINT AT T=0 IS CALCULATED FROM THE TOTAL CROSS SECTION. SEPARATION INTO SCATTERING ON PROTONS AND ON NEUTRONS IS IMPOSSIBLE.


STUDY OF DEUTERON - PROTON INTERACTIONS IN THE INCIDENT MOMENTUM RANGE OF 2.0-GeV/c - 3.7-GeV/c

Kajita, M. ; Katayama, N. ; Koiso, H. ; et al.
329-336, 1983.
Inspire Record 193399 DOI 10.17182/hepdata.37038

None

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


Measurement of the spin rotation parameters R and A in pi- p elastic scattering at 450-MeV and 560-MeV

Abaev, V.V. ; Bazhanov, N.A. ; Bekrenev, V.S. ; et al.
Sov.J.Nucl.Phys. 48 (1988) 852-858, 1988.
Inspire Record 457307 DOI 10.17182/hepdata.17344
3 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


ELASTIC pi- d SCATTERING AT 552-MeV/c MOMENTUM

Dakhno, L.G. ; Kravtsov, A.V. ; Makarov, M.M. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 326, 1980.
Inspire Record 143874 DOI 10.17182/hepdata.18995

None

3 data tables match query
Table 3

FROM LEGENDRE POLYNOMIAL FIT TO D(SIG)/DOMEGA, USING VALUE AT THETA = 0 DEG OBTAINED BY ADDITION OF THE PI+ P AND PI- P FORWARD SCATTERING AMPLITUDES GIVEN BY DISPERSION RELATIONS.

Table 4

No description provided.

Table 5

No description provided.


New Results From Bhabha Scattering at 29-{GeV}

Derrick, M. ; Gan, K.K. ; Kooijman, P. ; et al.
Phys.Lett.B 166 (1986) 463-467, 1986.
Inspire Record 17511 DOI 10.17182/hepdata.6636

Results are reported on a high statistics study of Bhabha scattering at 29 GeV in the polar angle region, |cos θ | < 0.55. The data are consistent with the standard model, and measure vector and axial-vector coupling constants of g v 2 = 0.03 ± 0.09 and g a 2 = 0.46±0.14. Limits on the QED-cutoff parameters are Λ + > 154 GeV and Λ - > 220 GeV. Lower limits on scale parameters of composite models are in the range 0.9–2.8 TeV. The partial width of a hypothetical spin-zero boson decaying to e + e − has an upper limit which varies from 6 to 57 MeV corresponding to a boson mass in the range 45–80 GeV/ c 2 .

1 data table match query
Table 1

No description provided.


n-p Elastic Charge Exchange in the BeV Energy Region

Palevsky, H. ; Moore, J.A. ; Stearns, R.L. ; et al.
Phys.Rev.Lett. 9 (1962) 509-511, 1962.
Inspire Record 46894 DOI 10.17182/hepdata.209

None

3 data tables match query
Table 1

'1'. '2'.

Table 5

No description provided.

Table 6

No description provided.


Experimental Study of the Reactions $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \gamma \gamma$ at 29-{GeV}

Derrick, M. ; Gan, K.K. ; Kooijman, P. ; et al.
Phys.Rev.D 34 (1986) 3286, 1986.
Inspire Record 18585 DOI 10.17182/hepdata.23442

This paper reports measurements of the differential cross sections for the reactions e+e−→e+e− (Bhabha scattering) and e+e−→γγ (γ-pair production). The reactions are studied at a center-of-mass energy of 29 GeV and in the polar-angular region ‖costheta‖<0.55. A direct cross-section comparison between these two reactions provides a sensitive test of the predictions of quantum electrodynamics (QED) to order α3. When the ratio of γ-pair to Bhabha experimental cross sections, integrated over ‖costheta‖<0.55, is divided by the same ratio predicted from α3 QED theory, the result is 1.007±0.009±0.008. The 95%-confidence limits on the QED-cutoff parameters are Λ+>154 GeV and Λ−>220 GeV for Bhabha scattering, and Λ+>59 GeV and Λ−>59 GeV for γ-pair production.

1 data table match query
Table 1

No description provided.


Measurement of the Spin Rotation Parameters R and A in pi- p Elastic Scattering at Energy 450 MeV

Bekrenev, V.S. ;
LENI-86-1215, 1986.
Inspire Record 1395704 DOI 10.17182/hepdata.37961

None

3 data tables match query
Table 1

POLARIZED PROTON TARGET.

Table 2

POLARIZED PROTON TARGET.

Table 3

POLARIZED PROTON TARGET.