Date

ANALYSIS OF SCALING VIOLATION IN NUCLEON STRUCTURE FUNCTIONS

Ammosov, V.v. ; Gapienko, V.a. ; Gapienko, G.s. ; et al.
JETP Lett. 36 (1982) 367-371, 1982.
Inspire Record 185559 DOI 10.17182/hepdata.39758

None

2 data tables

No description provided.

No description provided.


INCLUSIVE RESONANCE PRODUCTION IN 7.3-GEV/C ANTI-P P INTERACTIONS

Whyman, B.M. ; Johnson, P. ; Mason, P. ; et al.
Z.Phys.C 12 (1982) 203-216, 1982.
Inspire Record 179887 DOI 10.17182/hepdata.16423

We present results on inclusive baryon and meson resonance production in\(\bar pp\) interactions at 7.3 GeV/c. Total inclusive and semi-inclusive cross sections are given for Δ(1232),∑*(1385), ϱ0,f andK*±(892) production. For the meson resonances separation into annihilation and non-annihilation components has been made, the annihilation component being dominant at this energy. We find that the energy dependence of inclusive cross sections for ϱ0 production inpp interactions and\(\bar pp\) non-annihilations shows a type of scaling behaviour previously reported for ϕ, ψ, ψ′ and ϒ production inpp interactions.Δ++, ϱ0 andK*± production are studied in terms of Feynmanx,y* andpT2. For the vector mesons we compare they* andx dependences with the predictions of simple quark models.

9 data tables

No description provided.

No description provided.

RHO0 ANNIHILATION AND NON-ANNIHILATION DATA.

More…

THE REACTION ANTI-P P ---> DELTA (1236) ANTI-DELTA (1236) AT BEAM MOMENTA OF 7.23-GEV/C AND 12.0-GEV/C

Van Apeldoorn, G.W. ; Harting, D. ; Holthuizen, D.J. ; et al.
Z.Phys.C 12 (1982) 95-98, 1982.
Inspire Record 179937 DOI 10.17182/hepdata.16432

The reactionp→Δ(1236)\(\bar \Delta \)(1236) is studied at 7.23 GeV/c and at 12GeV/c in terms of the OPE model of Wolf. Good agreement between the model and experimental data is found for the mass andt distributions whereas for decay angular distributions the agreement is less satisfactory. A modified model, allowing for a spin orbit coupling, gives good agreement also for the angular distribution.

3 data tables

No description provided.

No description provided.

CROSS SECTION FOR -T < 0.14 GEV**2.


MEASUREMENT OF THE muon-neutrino CHARGED CURRENT CROSS-SECTION

Baker, N.J. ; Connolly, P.L. ; Kahn, S.A. ; et al.
Phys.Rev.Lett. 51 (1983) 735-738, 1983.
Inspire Record 183068 DOI 10.17182/hepdata.20488

The Fermilab 15-ft bubble chamber, filled with a heavy neon-hydrogen mix, was exposed to a narrow-band νμ beam. Based on the observation of 830 charged-current νμ interactions, the cross section was found consistent with a linear rise with the neutrino energy in the interval 10 GeV<~Eν≲240 GeV. The average slope was determined to be σνEν=(0.62±0.05)×10−38 cm2 GeV−1.

2 data tables

Measured charged current total cross section.

No description provided.


GENERAL FEATURES OF ANTI-P P INTERACTIONS AT 7.3-GEV/C

Patel, G.D. ; Johnson, P. ; Mason, P. ; et al.
Z.Phys.C 12 (1982) 189-202, 1982.
Inspire Record 179888 DOI 10.17182/hepdata.2239

Absolute inclusive cross sections for\(\bar pp\) interactions at 7.3 GeV/c are given. The data cover prong cross sections,V0, γ production and inclusive charged particle (p/π) production. Separation has been made into annihilation and non-annihilation components. Inclusive π+, π− production in the processes of\(\bar pp\) annihilation and non-annihilation are compared with simple quark models.

26 data tables

No description provided.

No description provided.

ANNIHILATION AND NON-ANNIHILATION TOPOLOGICAL CROSS SECTIONS.

More…

Charge Asymmetry and Weak Interaction Effects in $e^+ e^- \to \mu^+ \mu^-$ and $e^+ e^- \to \tau^+ \tau^-$

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 110 (1982) 173-180, 1982.
Inspire Record 176719 DOI 10.17182/hepdata.6699

We have measured, at an average centre-of-mass energy of 34.22 GeV a forward-backward charge asymmetry in the reaction e + e − → μ + μ − of value −0.161 ± 0.032. This demonstrates the existence of an axial vector neutral current with coupling strength of g e a g μ a =0.53 ± 0.10. We have also obtained a limit on the vector coupling strength of g e v g μ v <0.12. The Weinberg angle is found to be sin 2 θ W =0.29 +0.09 −0.11 . From the reaction e + e − → τ + τ − we have found g e a g τ a <0.34, g e v g τ v <0.55.

7 data tables

No description provided.

No description provided.

No description provided.

More…

STRUCTURE OBSERVED IN THE SPIN SPIN CORRELATION PARAMETER C(LL) = (L, L, 0, 0) IN P P ELASTIC SCATTERING AROUND THETA (C.M.) = 90-DEGREES IN THE REGION P(LAB) = 2.5-GEV/C - 5.0-GEV/C

Auer, I.P. ; Chang-Fang, C. ; Colton, E. ; et al.
Phys.Rev.Lett. 48 (1982) 1150-1152, 1982.
Inspire Record 180637 DOI 10.17182/hepdata.20626

The spin-spin correlation parameter CLL=(L, L; 0, 0) has been measured for p−p elastic scattering around θc.m.=90° up to plab=5 GeV/c. An interesting energy dependence is observed in CLL and the results are interpreted by comparison with other available data.

1 data table

NUMERICAL VALUES OF DATA IN FIGURE SUPPLIED BY A. YOKOSAWA.


Neutral Current $\nu_\mu \eta$ and $\nu_\mu \rho$ Cross-sections from High-energy Neutrino Interactions in Deuterium

Kafka, T. ; Mann, W.A. ; Sommars, S. ; et al.
Phys.Rev.Lett. 48 (1982) 910-914, 1982.
Inspire Record 180620 DOI 10.17182/hepdata.20576

In an exposure of the deuterium-filled 15 ft bubble chamber, σ(νμn→νμX)σ(νμp→νμX) is measured to be 1.01±0.14. The ratios of neutral-current to charged-current cross sections are 0.30±0.03, 0.22±0.03, and 0.49±0.06 for D2, n, and p targets, respectively, which imply values uL2=0.19±0.06 and dL2=0.13±0.04 for the neutral-current chiral couplings. Evidence for both u- and d-quark jets in neutral-current reactions is observed in distributions of energy fraction of the fastest hadron of either charge from each event.

3 data tables

No description provided.

No description provided.

No description provided.


SEARCH FOR STRUCTURE IN SIGMA (E+ E- ---> HADRONS) BETWEEN S**(1/2) = 10.34-GEV AND 11.6-GEV

Rice, E. ; Bohringer, T. ; Franzini, P. ; et al.
Phys.Rev.Lett. 48 (1982) 906-910, 1982.
Inspire Record 180613 DOI 10.17182/hepdata.20593

The CUSB detector at the Cornell Electron Storage Ring has been used to measure R=σ(e+e−→hadrons)σ(e+e−→μ+μ−) in the c.m. energy regions between the ϒ′′ and the ϒ′′′, and above the ϒ′′′ up to s=11.6 GeV, with integrated luminosities of 5000 and 2100 nb−1, respectively. No narrow resonances are observed, and limits on the leptonic widths are presented. The average value of R increases by 0.31±0.06 across the flavor threshold.

4 data tables

UNCORRECTED VALUES OF R.

UNCORRECTED R VALUES BELOW AND ABOVE UPSI(10.5).

FULLY CORRECTED R VALUES, ASSUMING B AB PRODUCTION IS TOTALLY RESPONSIBLE FOR THE EXCESS ABOVE UPSI(10.5).

More…

SOME G (1700) DECAY MODES

Bugg, W.M. ; Condo, G.T. ; Handler, T. ; et al.
Phys.Rev.D 26 (1982) 2183, 1982.
Inspire Record 184846 DOI 10.17182/hepdata.23946

From a study of 8-GeV/c π−p interactions, the various two-pion and four-pion decay channels available to the g− meson have been investigated. Our results indicate that the dominant 4π decay modes involve intermediate ρ and ω production without significant A2 formation.

3 data tables

No description provided.

No description provided.

No description provided.