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Based on a reliable mechanism, the cross sections of the B , hadronic production at the TeV energies of the CERN SppS, Fermilab Tevatron, CERN LHC, and SSC, as well as their possible fixed target experiments, are calculated. The results are presented numerically and indicate that the cross sections at the energies reached at the Tevatron, LHC, and SSC or higher are sufficiently large for further considering experimental studies of the B , meson at these colliders. PACS number(s1: 13.85.Ni, 12.38.Bx, 14.40.J~ The physics of the B, meson is very interesting, due to the nature of its structure. Comparing it with 77,,J/3, and v b , Y , etc., the B, meson, on one hand the same as them, is a double heavy-quark-antiquark bound state, so the QCD-inspired potential model should work well, and, on the other hand different from them, it carries flavors explicitly; thus it may decay by the weak interaction only, and has a much longer lifetime than the others [I-3,151. The B, meson (or its antiparticle) probably is the only object having the above twofold nature in the hadron world if there are only three generations of fundamental fermions as indicated by the standard model, and a very heavy top m , indicated by 140 GeV. The reason is as follows: In addition to the c 6 o r Sb bound states, of the three families a double heavy-quark-antiquark system with this feature must contain a top or top antiquark inside. However, the top quark probably would not have time to form any hadron before decaying itself: The lowest bound of the top quark mass is proved up to m , ? 91 GeV [7] now, and the top's lifetime will become shorter as the bound is increasing. It is easy to estimate that m, 2 140 GeV happens to be the case that the top quark would not have time to form any hadron before decaying itself. Therefore the B,, as well as its antiparticle, probably is the unique object having this nature. The properties of the meson B, may potentially make it become a fruitful "laboratory" for testing potential models and understanding the weak decay mechanism for heavy flavors.The reason the experimental study of B, physics has not really started yet, interesting though the physics may be, is due to the difficulty of producing the B, mesons. The difficulty may be understood by inspecting the following most possible mechanisms of the production. The first is to produce the meson B, or its antiparticle B, by the so-called fragmentation mechanism. In fact it is practically impossible by this mechanism to produce a number of the mesons, although it is very important for *Mailing address. the production of the single heavy mesons (with one heavy quark and one light quark) such as D O , Do, D', D -, D , , &, B +, B -, B O , and Po, etc. The reason is that the possibility to create a pair of heavy quarks from the vacuum (in the B, production case) is much smaller than that to create a pair of light ones (in the latter case). According to the hadron string model [4], the relative possibilities for producing quark pairs of various flavors from the v...

Measurements of the forward-angle differential cross section for elastic electron-proton scattering were made in the range of momentum transfer from Q2 = 2.9 to 31.3 (GeV/c)2 using an electron beam at the Stanford Linear Accelerator Center. The data span six orders of magnitude in cross section. Combined statistical and systematic uncertainties in the cross section measurements ranged from 3.6% at low Q2 to 19% at high Q2. These data have been used to extract the proton magnetic form factor Gb(Q2) and Dirac form-factor F:(Q2) by using form factor scaling. The logarithmic falloff of Q4F'f expected from leading twist predictions of perturbative quantum chromodynamics (&CD) is consistent with the new data at high Q 2. Some nonperturbative and hybrid calculations also agree with our result 9.