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Production of Multi - Pion Systems With Large Longitudinal Momentum at the {CERN} {ISR}

Lockman, William S. ; Meyer, T. ; Rander, J. ; et al.
Phys.Rev.Lett. 41 (1978) 680-683, 1978.
Inspire Record 6695 DOI 10.17182/hepdata.20814

Inclusive cross sections are presented for 2π and 3π systems with large longitudinal x at the highest intersecting storage ring energies (s=53 GeV for 2π; s=53 and 62 GeV for 3π). The ratio π+π−π−π− rises sharply with increasing x similar to the ratio K+K−, as expected in a quark-model interpretation.

2 data tables
Table 1

The differential cross section is fitted by the equation : E*D3(SIG)/D3(P) = CONST*(1-XL)**POWER*EXP(-SLOPE*PT**2).

Table 2

The differential cross section is fitted by the equation : E*D3(SIG)/D3(P) = CONST*(1-XL)**POWER*EXP(-SLOPE*PT**2).


Forward - backward charge asymmetry of electron pairs above the Z0 pole

The CDF collaboration Abe, F. ; Akimoto, H. ; Akopian, A. ; et al.
Phys.Rev.Lett. 77 (1996) 2616-2621, 1996.
Inspire Record 417098 DOI 10.17182/hepdata.50121

We present a measurement of the forward-backward charge asymmetry of the process pp¯→Z0/γ+X,Z0/γ→e+e− at Mee>MZ, using 110pb−1 of data at s=1.8TeV collected at the Collider Detector at Fermilab. The measured charge asymmetries are 0.43±0.10 in the invariant mass region Mee>105GeV/c2, and 0.070±0.016 in the region 75<Mee<105GeV/c2. These results are consistent with the standard model values of 0.528±0.009 and 0.052±0.002, respectively.

1 data table
Table 1

The forward-backward asymmetry resuts from angular differential cross section : D(SIG)/D(COS(THETA*) = A*(1 + COS(THETA*)**2) + B*COS(THETA*), where THETA * is the emission angle of the E- relative to the quark momentum in the rest frame of the E+ E- pair.


Double boson production at D0.

The D0 collaboration Yasuda, T. ;
567-573, 1996.
Inspire Record 423583 DOI 10.17182/hepdata.43003

None

1 data table
Table 1

E + MU combined. Limits on CP-conserving anomalous W_W_GAMMA couplings DELTA(K) and LAMBDA (see paper). The cross section times branching ratio are presented.