USE OF PI P ---> PI PI N REACTIONS TO STUDY PI PI SCATTERING IN THE ELASTIC INTERACTION REGION

Alekseeva, E.a. ; Kartamyshev, A.a. ; Makarin, V.k. ; et al.
Sov.Phys.JETP 55 (1982) 591-600, 1982.
Inspire Record 185170 DOI 10.17182/hepdata.2406
10 data tables

No description provided.

No description provided.

No description provided.

More…

Exclusive electroproduction of J/psi mesons at HERA

The ZEUS collaboration Chekanov, S. ; Derrick, M. ; Krakauer, D. ; et al.
Nucl.Phys.B 695 (2004) 3-37, 2004.
Inspire Record 647777 DOI 10.17182/hepdata.46277

The exclusive electroproduction of J/psi mesons, ep->epJ/psi, has been studied with the ZEUS detector at HERA for virtualities of the exchanged photon in the ranges 0.15<Q^2<0.8 GeV^2 and 2<Q^2<100 GeV^2 using integrated luminosities of 69 pb^-1 and 83 pb^-1, respectively.The photon-proton centre-of-mass energy was in the range 30<W<220 GeV and the squared four-momentum transfer at the proton vertex |t|<1.The cross sections and decay angular distributions are presented as functions of Q^2, W and t. The effective parameters of the Pomeron trajectory are in agreement with those found in J/psi photoproduction. The spin-density matrix elements, calculated from the decay angular distributions, are consistent with the hypothesis of s-channel helicity conservation. The ratio of the longitudinal to transverse cross sections, sigma_L/sigma_T, grows with Q^2, whilst no dependence on W or t is observed. The results are in agreement with perturbative QCD calculations and exhibit a strong sensitivity to the gluon distribution in the proton.

20 data tables

Cross sections for exclusive J/PSI production as a function of W in the Q**2 region 0.15 to 0.18 GeV**2.

Cross sections for exclusive J/PSI production as a function of W in the Q**2 region 2 to 5 GeV**2.

Cross sections for exclusive J/PSI production as a function of W in the Q**2 region 5 to 10 GeV**2.

More…

Parity-Nonconserving Optical Rotation at 876 nm in Bismuth

Macpherson, M.J. ; Stacey, D.N. ; Baird, P.E.G. ; et al.
Europhys.Lett. 4 (1987) 811-816, 1987.
Inspire Record 1408819 DOI 10.17182/hepdata.70515

We have measured parity-nonconserving optical rotation in the vicinity of the M1 absorption transition at 876 nm in bismuth. The result, R = Im(E1PNC/M1) = (-10.0 ± 1.0) centerdot 10-8, is in agreement with calculations based on the standard model of the electroweak interaction. The predicted form of the PNC rotation spectrum has been verified to high accuracy.

1 data table

No description provided.


Measurement of optical activity of bismuth vapor

Barko, L.M. ; Zolotarev, M.S ;
JETP Lett. 28 (1978) 503, 1978.
Inspire Record 1408596 DOI 10.17182/hepdata.70464
1 data table

OPTICAL ROTATION ANGLE DUE TO PARITY NONCONSERVING INTERACTIONS.


Determination of the Charge-exchange Cross Section for Pion-pion Collision from the Analysis of the $\pi^- + p\to \pi^- + \pi^+ + n$ Reaction at 290 Mev

Batusov, Yu.A. ; Bunyatov, S.A. ; Yarba, V.A. ; et al.
Zh.Eksp.Teor.Fiz. 12 (1960) 354-356, 1960.
Inspire Record 1388104 DOI 10.17182/hepdata.70445
1 data table

No description provided.


Study of ω, φ Resonances and ω φ Interference

Kurdadze, L.M. ; Lelchuk, M.Y. ; Pakhtusova, E.V. ; et al.
1984.
Inspire Record 1408355 DOI 10.17182/hepdata.70433
2 data tables

No description provided.

No description provided.


MEASUREMENTS OF THE STRUCTURE FUNCTIONS F2 (x, Q**2) FROM neutrino p AND ANTI-NEUTRINO p INTERACTIONS

The WA21 collaboration Grassler, H. ; Lanske, D. ; Schulte, R. ; et al.
1984.
Inspire Record 15788 DOI 10.17182/hepdata.1180
2 data tables

NORMALISATION UNCERTAINTY IS 7 PCT.

NORMALISATION UNCERTAINTY IS 7 PCT.


No description provided.

No description provided.

No description provided.

More…

Observation of the Decay $\rho \to \pi^+ \pi^- \gamma$. (In Russian)

Vasserman, I.B. ; Golubev, V.B. ; Dolinsky, S.I. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 1035-1037, 1988.
Inspire Record 272215 DOI 10.17182/hepdata.37130
2 data tables

No description provided.

No description provided.


INVESTIGATION OF THE PROCESS E+ E- ---> E+ E- GAMMA IN THE ENERGY REGION 0.64-GEV - 1.40-GEV. (IN RUSSIAN)

Bukin, A.D. ; Kurdadze, L.M. ; Lelchuk, M.Yu. ; et al.
Yad.Fiz. 35 (1982) 1444-1447, 1982.
Inspire Record 182031 DOI 10.17182/hepdata.37152
3 data tables

No description provided.

No description provided.

No description provided.