Cherry, M.L.
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Measurement of the Ratios of $\bar{\nu}_\mu n$ to $\bar{\nu}_\mu p$ Charged Current Cross-sections at High-energies

Allasia, D. ; Angelini, C. ; Baldo-Ceolin, M. ; et al.
Phys.Lett.B 107 (1981) 148-152, 1981.
Inspire Record 167732 DOI 10.17182/hepdata.39982

From the analysis of 5630 v υ and of 1372 v π charged current interactions, obtained in the BEBC bubble chamber filled with deuterium and exposed to the CERN wide band antineutrino beam, the ratios of cross section on neutron and photon targets have been measured and found to be R  σ ν)/σ v p = 0.51 ± 0.01 (±0.03) , and R  σ( ν n )/σ( v p ) = 22.2 ± 0.12 (±0.25) The dependence of these ratios on the x scaling variable shows, in a direct way, that the momentum distribution of the majority quark, u p ( x ) = d n ( x ), is broader than that of the minority quark, u n ( x ) = d p ( x ).

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Cross-section Measurements for the Reactions $\nu p \to \mu^- \pi^+ p$ and $\nu p \to \mu^- K^+ p$ at High-Energies

Bell, J. ; Coffin, C.T. ; Diamond, R.N. ; et al.
Phys.Rev.Lett. 41 (1978) 1008, 1978.
Inspire Record 131344 DOI 10.17182/hepdata.24326

We present results for the reactions νp→μ−π+p and νp→μ−K+p at energies above 5 GeV. The average cross section for the first reaction between 15 and 40 GeV is (0.80±0.12) × 10−38 cm2 and for events with Mπ+p<1.4 GeV is (0.55±0.08) × 10−38 cm2. The ratio of the cross section for the second reaction to that for the first is 0.017±0.010.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

RAPIDITY IS MEASURED IN 'QUARK' REST FRAME DEFINED AS Y(Q)=Y(LAB)-LOG(W**2/M**2) WHERE Y(LAB)=0.5*LOG((E+PL)/(E-PL)).

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