Modis, T.
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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
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


rivet Analysis
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
Table 1

UNCORRECTED VALUES OF R.

Table 2

UNCORRECTED R VALUES BELOW AND ABOVE UPSI(10.5).

Table 3

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

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NEW DECAY MODE OF THE CHARMED BARYON, LAMBDA(C)+ ---> SIGMA0 PI+

Kitagaki, T. ; Tanaka, S. ; Yuta, H. ; et al.
Phys.Rev.Lett. 48 (1982) 299-301, 1982.
Inspire Record 177920 DOI 10.17182/hepdata.20615

In a sample of approximately 17500 charged-current neutrino-deuterium interactions from an exposure of the Fermilab 15-ft bubble chamber to a high-energy wide-band neutrino beam, the charmed baryon Λc+ is observed in a new decay mode, Λc+→Σ0π+. The product of branching ratio and production rate is estimated to be (3.2±2.1)×10−3 for this Σ0π+ channel.

1 data table
Table 1

No description provided.


MEASUREMENT OF DIFFERENTIAL CROSS-SECTION FOR GAMMA D ---> P N BY MONOCHROMATIC PHOTONS IN THE ENERGY RANGE OF DIBARYON RESONANCES

Baba, K. ; Endo, I. ; Fukuma, H. ; et al.
Phys.Rev.Lett. 48 (1982) 729-731, 1982.
Inspire Record 180617 DOI 10.17182/hepdata.20596

The differential cross section for γd→pn has been measured in the energy range between 180 and 600 MeV at c.m. angles 15°, 30°, 42°, and 72°, by using tagged photons. The results, in particular at smaller angles, are in disagreement with theoretical calculations which take into account the effect of dibaryon resonances.

4 data tables
Table 1

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

Table 2

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

Table 3

FIRST TABLE IS EXACT AVERAGE CM ANGLE AGAINST PHOTON ENERGY FOR THE SECOND TABLE.

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Evidence of a Rise in the Anti-proton - Proton Total Cross-section at the {CERN} Intersecting Storage Rings

Carboni, G. ; Lloyd Owen, D. ; Ambrosio, M. ; et al.
Phys.Lett.B 113 (1982) 87-92, 1982.
Inspire Record 176729 DOI 10.17182/hepdata.30895

We measured the total cross section for p p scattering at s = 52.8 GeV at the CERN ISR, using the direct, total-rate method. The result obtained, σ tot ( p p ) = 44.70 ± 0.53 mb , shows that, in common with σ tot (pp), this cross section also starts to rise in the ISR energy range. We remeasured the total cross section for pp scattering at the same energy, obtaining σ tot (pp) = 43.26 ± 0.33 mb, and found for the difference, Δσ tot = σ tot ( p p ) − σ tot ( pp ) , a value of 1.44±0.45 mb.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurement of Hadronic Production of the $\chi$ 1++ (3507) and the $\chi$ 2++ (3553) Through Their Radiative Decay to $J/\psi$

Lemoigne, Y. ; Barate, R. ; Bareyre, P. ; et al.
Phys.Lett.B 113 (1982) 509, 1982.
Inspire Record 176731 DOI 10.17182/hepdata.30918

The χ 1 ++ (3507) and the χ 2 ++ (3553) states have been observed in the Goliath spectrometer at the CERN SPS in 185 GeV/ c π − -Be collisions. Their radiative decays contribute 27.7% (for the χ 1 ++ ) and 12.8% (for the χ 2 ++ ) to J ϕ production. At this energy, their cross sections are 65±19 nb and 96±29 nb, respectively

1 data table
Table 1

No description provided.


rivet Analysis
A Measurement of the Reaction $e^+ e^- \to e^+ e^- \eta^\prime$ and the Radiative Width $\Gamma (\eta^\prime \to \gamma \gamma$) at {PETRA}

The JADE collaboration Bartel, W. ; Cords, D. ; Dittmann, P. ; et al.
Phys.Lett.B 113 (1982) 190-194, 1982.
Inspire Record 177090 DOI 10.17182/hepdata.30958

The reaction e + e - → e + e - η' has been observed in the JADE experiment at PETRA, by detecting the final state π + π - γ, resulting from the decay η' → γϱ 0 . The cross section was measured at an average beam energy of 17.15 GeV to be σ(e + e - → e + e - η') = 2.2 ± 0.2 (stat.) ± 0.4(syst.) nb, yielding the radiative width Γ η'γγ = 5.0 ± 0.5(stat.) ± 0.9 (syst.) keV.

1 data table
Table 1

No description provided.


Transverse Momentum Distributions of Hadrons Produced in $\alpha \alpha$ and $\alpha p$ Collisions at the {CERN} Intersecting Storage Rings

The CERN-Heidelberg-Lund collaboration Bell, W. ; Braune, K. ; Claesson, G. ; et al.
Phys.Lett.B 112 (1982) 271-276, 1982.
Inspire Record 176957 DOI 10.17182/hepdata.30920

The inclusive production of charged hadrons has been measured in αα and αp collisions at nucleon-nucleon c.m. energies (√s nn )of 31 and 44 GeV, respectively, for transverse momenta p T up to 5 GeV/ c in the central rapidity ( y ) region. at high p T the yields are consistent with being 4 times and 16 times highere than the ones in pp interactions at y =0, for αp and αα interactions, respectively. However, an enhancement over these factors, as expected from an earlier FNAL experiment, cannot be ruled out.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of Polarized Target Asymmetry in $\gamma d \to p n$ in the Photon Energy Region Between 0.3-{GeV} and 0.7-{GeV}

Ohashi, Y. ; Awaji, N. ; Hayashii, H. ; et al.
Phys.Lett.B 110 (1982) 441-444, 1982.
Inspire Record 176585 DOI 10.17182/hepdata.30974

The target asymmetry in γ d → pn has been measured at proton c.m. angles of 70°, 100° and 130° in the photon energies between 0.3 and 0.7 GeV. Results show relatively small asymmetry values in contrast to large proton polarizations. A phenomenological analysis by Ikeda et al. does not reproduce the present data, especially in the lower energy region.

3 data tables
Table 1

STATISTICAL ERRORS ONLY. MORE DETAILED DATA SUPPLIED BY S.KATO.

Table 2

STATISTICAL ERRORS ONLY. MORE DETAILED DATA SUPPLIED BY S.KATO.

Table 3

STATISTICAL ERRORS ONLY. MORE DETAILED DATA SUPPLIED BY S.KATO.


Charged Pion Production in $e^+ e^-$ Annihilation at 14-{GeV}, 22-{GeV} and 34-{GeV} Center-of-mass Energy

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 113 (1982) 98-104, 1982.
Inspire Record 176886 DOI 10.17182/hepdata.30892

The inclusive production of π ± mesons in e + e − annihilation has been measured at c.m. energies of 14, 22 and 34 GeV for pion momenta between 0.3 ans 10 GeV/ c . The fraction of pions among the charged hadrons is above 90% at 0.4 GeV/ c and decreases to about 50% at high momenta. The scaled cross sections ( s β ) d σ d x at 14, 22 and 34 GeV as well as the 5.2 GeV data from DASP have a rather similar x dependence. After integration over the x range from 0.2 to 0.6 the cross sections indicate a monotonic decrease with increasing centre-of-mass energy.

16 data tables
Table 1

PION FRACTIONS IDENTIFIED BY INNER TOF COUNTERS (ITOF). ERRORS SHOWN ARE STATISTICAL ONLY.

Table 2

PION FRACTIONS IDENTIFIED BY INNER TOF COUNTERS (ITOF). ERRORS SHOWN ARE STATISTICAL ONLY.

Table 3

PION FRACTIONS IDENTIFIED BY INNER TOF COUNTERS (ITOF). ERRORS SHOWN ARE STATISTICAL ONLY.

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