Measurement of the total cross section for e+e-âƒTMhadrons at â‹ıs=10.52 GeV

Measurement of the B+ total cross section and B+ differential cross section dÏ.../dpT in ppÌ– collisions at â‹ıs=1.8 TeV

Measurement of the total cross section for hadronic production by e(+)e(-) annihilation at energies between 2.6-5 GeV

Using the upgraded Beijing Spectrometer, we have measured the total cross section for e(+)e(-) annihilation into hadronic final states at center-of-mass energies of 2.6, 3.2, 3.4, 3.55, 4.6, and 5.0 GeV. Values of R, sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->&mgr;(+)&mgr;(-)), are determined.

بررسی و مطالعه توابع ساختار و توزیع زاویه‌ای پراکندگی لپتون‌ها از هسته‌های 40Ca و 56Fe

 In this paper, we calculate nuclear structure function and EMC effect of 40Ca and 56Fe nuclei. To achive the goals, we consider Fermi motion and binding energy contrbiution in the harmonic oscillator model. In this model, harmonic oscillator parameter ħω related to shells root mean square radius and for free nucleon structure functions, is obtained from GRV’s free nucleon structure functions. ...

PHYSICS WITH LOW-ENERGY e+e- AND e-e- COLLISIONS AT TAU-CHARM FACTORY*

The physics opportunities in e+ecollisions with fi 21 1-2 GeV and e-ecollisions with $ N 5 GeV at Tau-Charm Factory are being explored. The low-energy e+eoption allows precise measurements of e+ecross sections into r’s and q’s and hence stringent tests of the conserved-vector-current (CVC) hypothesis in r decays. Precise measurement of the total hadronic cross section also permits a more precis...

MULTIHADRON PRODUCTION FOR e e FOR FROM 50 TO 61 GeV, C. M. ENERGIES AND COMPARISON WITH MULTIHADRON PRODUCTION IN HADRONIC INTERACTIONS

Average values of< 1- T >where T is the thrust are presented for e: e: AMY data and are compared with their values in hadronic interactions. As far as possible, similar analysis techniques have been employed in the two different interactions. Similar variation with E is observed for this average in both data. The values of < PT> and < PL > relative to the thrust axis in e e are simila...