A Study of e+ e- ---> p anti-p using initial state radiation with BABAR

The BaBar collaboration Aubert, Bernard ; Barate, R. ; Boutigny, D. ; et al.
Phys.Rev.D 73 (2006) 012005, 2006.
Inspire Record 700020 DOI 10.17182/hepdata.41831

The e+e- -> p anti-p cross section is determined over a range of p anti-p masses, from threshold to 4.5 GeV/c^2, by studying the e+e- -> p anti-p gamma process. The data set corresponds to an integrated luminosity of 232 fb^-1, collected with the BABAR detector at the PEP-II storage ring, at an e+e- center-of-mass energy of 10.6 GeV. The mass dependence of the ratio of electric and magnetic form factors, |G_E/G_M|, is measured for p anti-p masses below 3 GeV/c^2: its value is found to be significantly larger than 1 for masses up to 2.2 GeV/c^2. We also measure J/psi -> p anti-p and psi(2S) -> p anti-p branching fractions and set an upper limit on Y(4260) -> p anti-p production and decay.

2 data tables

The cross section and effective form factor for E+ E- --> PBAR P.

The cross section and effective form factor for E+ E- --> PBAR P.


A-dependence of $\eta$ Meson Inclusive Production at 10.5-{GeV}/$c$

Bitsadze, G.S. ; Budagov, Yu.A. ; Chirikov-Zorin, I.E. ; et al.
Nucl.Phys.B 279 (1987) 770, 1987.
Inspire Record 231123 DOI 10.17182/hepdata.39482

The experimental results are presented for ratios of ν-meson inclusive differential cross sections in 10.5 GeV/ c π + p, π + D and π + A collisions, R D/p =(d σ /d x F )( π + D → η X)/ (d σ /d x F ) π + p→ η X), R A =(d σ /d x F )( π + D→ η X) in the beam fragmentation region. The results are based on the statistics of ≈ 5 × 10 4 detected η → 2 γ decays. It is shown that the power α in the parametrisation R A ≈ A α ( xf ) does not change significantly with x F and its mean value is 0.50±0.02. The lower limit is obtained for the effective coefficient with string tension in the colour string model, κ ⩾ 3 GeV/fm. The observed growth of R A with x F can be explained by an assumption of a neutron halo with the factor H ≈ 4 in the nuclei.

5 data tables

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A-dependence of the Production Cross-section of $\Lambda(c$)+ Charmed Baryons in Neutron - Nucleus Interactions

The BIS-2 collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.
Sov.J.Nucl.Phys. 46 (1987) 657, 1987.
Inspire Record 235393 DOI 10.17182/hepdata.39661

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1 data table

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ANALYSIS OF ANGULAR DEPENDENCE OF INCLUSIVE CROSS-SECTIONS FOR PRODUCTION OF PROTONS AND LIGHT IONS ON NUCLEI IN THE REGION OF TARGET FRAGMENTATION

Bayukov, Yu.D. ; Gavrilov, V.B. ; Efremenko, V.I. ; et al.
Sov.J.Nucl.Phys. 33 (1981) 94, 1981.
Inspire Record 154931 DOI 10.17182/hepdata.17816

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1 data table

IN 'YN' OF THIS TABLE 'A' MEANS CHEMICAL WEIGHT OF TANTALUM NUCLEUS.


ANALYSIS OF RAPIDITY DISTRIBUTION OF pi MESONS IN pi- p AND pi- C-12 REACTIONS BY MEANS OF THE FOURIER ALGORITHM

Anoshin, A.I. ; Belashev, B.Z. ; Lyubimov, V.B. ; et al.
JINR-P1-81-681, 1981.
Inspire Record 169007 DOI 10.17182/hepdata.39101

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4 data tables

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ANGULAR DEPENDENCE OF YIELD AND SHAPE OF NEUTRON SPECTRA PRODUCED IN p A AND pi- A INTERACTIONS

Bayukov, Yu.D. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.
ITEP-122-1982, 1982.
Inspire Record 181621 DOI 10.17182/hepdata.40231

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4 data tables

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ANGULAR DEPENDENCE OF YIELD AND SPECTRUM OF PROTONS PRODUCED IN p A INTERACTIONS AT 7.5-GeV/c

Bayukov, Yu.D. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.
ITEP-90-1981, 1981.
Inspire Record 168853 DOI 10.17182/hepdata.40246

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4 data tables

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APPLICATION OF ROBUST FITTING TO DETERMINATION OF ISOBARIC CROSS-SECTIONS OF RESIDUAL NUCLEI IN RELATIVISTIC INTERACTIONS

Damdinsuren, Ts. ; Kozma, P. ; Zlokazov, V.B. ;
JINR-P1-88-312, 1988.
Inspire Record 265677 DOI 10.17182/hepdata.39436

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3 data tables

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ASYMMETRY MEASUREMENTS IN PION PHOTOPRODUCTION BY POLARIZED PHOTONS IN THE ENERGY RANGE FROM 250-MeV TO 600-MeV

Antufev, Yu.P. ; Agranovich, V.L. ; Ganenko, V.B. ; et al.
PRINT-70-2307, 1970.
Inspire Record 1105361 DOI 10.17182/hepdata.75432

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1 data table

No description provided.


Angular dependence of the asymmetry of the cross section for the reaction $\gamma$p $\rightarrow$ $\Delta^{++}\pi^{-}$ at a photon energy 650 MeV

Ganenko, V.B. ; Gorbenko, V.B. ; Zhebrovskii, Yu.V. ; et al.
JETP Lett. 16 (1972) 310-312, 1972.
Inspire Record 1393130 DOI 10.17182/hepdata.39786

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1 data table

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