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Electroproduction of K+ Mesons Along the Virtual Photon Direction

Bebek, C.J. ; Brown, C.N. ; Bucksbaum, P. ; et al.

Phys.Rev.D 15 (1977) 594, 1977.

Inspire Record 110317 DOI 10.17182/hepdata.24604

We report measurements of kaon electroproduction from hydrogen and deuterium targets carried out at the Wilson Synchrotron Laboratory at Cornell University. The reactions γVp→K+X0, K+Γ, and K+Σ0 were studied in the kinematic region 2.15≤W≤3.1 GeV and 1.2<Q2<4.0 GeV2 as a function of Q2, W, and ω. The K+Σ0 cross sections fall much more rapidly with increasing Q2 than the K+Λ cross sections so that K+Σ0KΛ→0 as Q2 increases.

3 data tables

Table 1

No description provided.

Table 2

FIRST 11 DATA POINTS ARE FROM THE PRESENT EXPERIMENT. THE NEXT 4 DATA POINTS ARE HARVARD-CORNELL DATA: BEBEK ET AL., PRL 32, 21 (1974). THE LAST 8 DATA POINTS ARE CEA DATA: BROWN ET AL., PRL 28, 1086 (1972).

Table 3

No description provided.

Scalar-Transverse Separation of Electroproduced K+ Lambda and K+ Sigma0 Final States

Bebek, C.J. ; Browman, A. ; Brown, C.N. ; et al.

Phys.Rev.D 15 (1977) 3082, 1977.

Inspire Record 4932 DOI 10.17182/hepdata.24615

We present evidence for a large scalar contribution to the cross section for the reaction ep→eK+Λ. No evidence for a scalar contribution is found for the reaction ep→eK+Σ0. This is reminiscent of the results for the π+n and π+Δ0 final states.

2 data tables

Table 1

AVERAGED OVER PHI. FOR LOW EPSILON, SOME DEUTERIUM DATA ARE INCLUDED. INCLUDING EARLIER MEASUREMENTS AT HIGH EPSILON.

Table 2

AVERAGED OVER PHI. INCLUDING EARLIER MEASUREMENTS AT HIGHER EPSILON.

Electroproduction of Single Pions at Low Epsilon and a Measurement of the Pion Form-Factor Up to Q2 = 10-GeV2

Bebek, C.J. ; Brown, C.N. ; Holmes, Stephen D. ; et al.

Phys.Rev.D 17 (1978) 1693, 1978.

Inspire Record 120118 DOI 10.17182/hepdata.4472

We report measurements of the electroproduction of single charged pions from hydrogen and deuterium targets for values of ε in the range 0.35<ε<0.45. Data were taken with a hydrogen target at the (W, Q2) points (2.15 GeV, 1.2 GeV2), (2.65, 2.0), (2.65, 3.4), (2.65, 6.0), and (2.65, 10.0). Data were taken with a deuterium target at the (W, Q2) points (2.15, 1.2) and (2.65, 2.0). The transverse cross section obtained by using these data in conjunction with earlier data at high ε to separate the longitudinal and transverse components is used in conjunction with the new data and the t-channel Born term to determine the pion form factor and to re-evaluate previously reported measurements. In the range 0.15 GeV2<Q2<10.0 GeV2 the pion form factor can be described by the simple pole form [1+Q2(0.462±0.024)]−1.

46 data tables

Table 1

SEPARATED TRANSVERSE AND LONGITUDINAL VIRTUAL-PHOTON CROSS SECTIONS PREVIOUSLY PUBLISHED IN C. J. BEBEK ET AL., PRL 37, 1326 (1976).

Table 2

DATA POINT 1 (HYDROGEN TARGET).

Table 3

DATA POINT 1 (HYDROGEN TARGET).

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Scalar Transverse Separation for Single pi+ Electroproduction

Bebek, C.J. ; Browman, A. ; Brown, C.N. ; et al.

Phys.Rev.Lett. 37 (1976) 1326, 1976.

Inspire Record 110318 DOI 10.17182/hepdata.21075

We report measurements of the exclusive electroproduction reaction e+p→e+π++n for pions produced near 0° in the virtual-photon-proton center-of-mass system with values of ε in the range 0.35<ε<0.45. Combination with data taken at ε near 1 allows us to separate the contributions from transversely polarized and scalar photons in the range 1.2 GeV2<Q2<3.3 GeV2.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

BACKWARD PRODUCTION OF THE B (1235) MESON IN 11.46-GEV/C PI+ P INTERACTIONS

Wong, M.K. ; Key, A.W. ; Schwarzschild, B.M. ; et al.

Phys.Rev.Lett. 46 (1981) 974, 1981.

Inspire Record 169864 DOI 10.17182/hepdata.20643

Evidence for the backward production of the B(1235) meson in the final state π+p→pfπ+ω at 11.46 GeV/c with σ(|u′|<1.5 GeV2)=1.28±0.26 μb is presented. When nucleon exchange is assumed to dominate, estimates for the SU(3) mixing parameter FD as well as the B coupling to the nucleon-antinucleon are given. Some indication of a narrow enhancement at M(π+ω)≃1.03 GeV/c2 is seen, but confirmation of this as a resonant state is not yet possible.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Channel cross-sections of k- p reactions from 1.26 to 1.84 gev/c

de Bellefon, A. ; Berthon, A. ; Rangan, L.K. ; et al.

Nuovo Cim.A 7 (1972) 567-583, 1972.

Inspire Record 78277 DOI 10.17182/hepdata.37482

We present the results on total channel cross-sections obtained in the Saclay 180 l HBC exposed to a separated K− beam at Nimrod. The cross-sections for each channel are given at 13 incident K− momenta between 1.26 and 1.84 GeV/c.

1 data table

Table 1

No description provided.

COHERENT REGENERATION IN HYDROGEN FROM 3-GeV/c TO 10-GeV/c

Buchanan, C.D. ; Drickey, Darrell James ; Rudnick, F.D. ; et al.

Phys.Lett.B 37 (1971) 213-216, 1971.

Inspire Record 67654 DOI 10.17182/hepdata.28377

We have studied the proper time distribution of coherent π + π − decays from a 3 – 10 GeV/ c K L o beam incident on a one meter liquid hydrogen target using a wire spark chamber spectrometer in the 3 0 neutral beam at SLAC. We find ∣(ƒ(0) − ƒ (0))/k∣ = 0.43 ± 0.11 mb , φ(ƒ(0) − ƒ (0)) = -101 0 ± 42 0 .

1 data table

Table 1

No description provided.

STUDY OF THE REACTION anti-D P ---> anti-P P anti-N AT 12-GeV/c AND anti-N P ELASTIC SCATTERING AT 6-GeV/c

The Dubna-Bucharest-Helsinki-Kosice-Moscow-Prague-Sofiya-Tbilisi-Yerevan collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Bruncko, D. ; et al.

Yad.Fiz. 42 (1985) 903-912, 1985.

Inspire Record 209931 DOI 10.17182/hepdata.39518

None

2 data tables

Table 1

No description provided.

Table 2

DATA WERE EXTRACTED FROM ADEUT-BREAKUP EVENTS,SEE R=PR D10, 3573 FOR EXAMPLE.

CHARACTERISTICS OF CHARGED PARTICLE MULTIPLICITY IN anti-n n AND n n INTERACTIONS AND anti-n n ANNIHILATION PROCESSES AT 6.1-GeV

The Dubna-Bucharest-Yerevan-Kosice-Moscow-Prague-Sofiya-Tbilisi collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Bruncko, D. ; et al.

Czech.J.Phys.B 36 (1986) 1273, 1986.

Inspire Record 222985 DOI 10.17182/hepdata.38975

Topological cross sections and characteristics of charged particle multiplicity distributions for¯nn andnn interactions and¯nn annihilations at 6·1 GeV/c are presented. KNO-distributions for¯nn andnn interactions are very similar. Characteristics for¯nn and¯pp annihilations are identical at equal energies.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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