The search for Higgs boson is the primary task for the LHC collider being now constructed at CERN. Although the predicted cross section is not small it may not be easy to discover Higgs in inclusive reaction due to large background in each of the final channel considered. An alternative way is to search for Higgs in exclusive or semi-exclusive reactions with large rapidity gaps. Kaidalov, Khoze...

We analyse the exclusive channel p¯ p → γ π 0 , assuming handbag dominance. The soft parts are parametrized in terms of CGLN amplitudes for the q ¯ q → γπ 0 transition and form factors for the p¯ p → q ¯ q ones, the latter represent moments of Generalized Distribution Amplitudes. We present a combined fit to Fermilab data from E760 taking simultaneously into account information from other exclu...

The next-to-leading order (NLO) evolution of the parton distribution functions (PDF’s) in QCD is the “industry standard” in the lepton-hadron and hadron-hadron collider data analysis. The standard NLO DGLAP evolution is formulated for inclusive (integrated) PDFs and is done using inclusive NLO kernels. We report here on the ongoing project, called KRKMC, in which NLO DGLAP evolution is performe...

Using state space technique and GF(2) theory, a simulation model for external exclusive NOR type LFSR structures is developed. Through this tool a systematic procedure is devised for computing pseudo-random binary sequences from such structures. Keywords—LFSR, external exclusive NOR type, recursive binary sequence, initial state next state, state transition matrix.

We present results for total cross sections, single and double differential distributions and correlations between pairs of outgoing particles in the reactions p + ¯ p → W + + γ and p + ¯ p → W + + γ + jet at √ S = 1.8 TeV. Order α S QCD corrections and leading logarithm photon bremsstrahlung contributions are included in the MS mass factorization scheme for three experimental scenarios: 1) 2-b...

Vector mesons are produced copiously in peripheral relativistic heavy-ion collisions. Virtual photons from one ion can fluctuate into quark-antiquark pairs and scatter from the second ion, emerging as vector mesons. The emitter and target are indistinguishable, so emission from the two ions will interfere. Vector mesons have negative parity so the interference is destructive, reducing the produ...

Exclusive vector meson production reactions such as Au + Au → Au + Au + V, where V = ρ, ω, φ or J/ψ can proceed through photon-Pomeron and photon-meson interactions. Photons from the electromagnetic field of one nucleus interact coherently with the other nucleus. Photonuclear cross sections are scaled from γp data, and convoluted with the photon spectrum to find the exclusive rates. The cross s...

I discuss recent results of inclusive and exclusive electroproduction experiments at Jefferson Lab. They include measurements of the spin response for protons and neutrons in the resonance region, exclusive single pion and multiple pion production to measure resonance transition multipoles, and searches for missing quark model states. A brief outlook to the new domain of Generalized Parton Dist...

The spin and flavor symmetries of the heavy quark effective theory are employed to discuss the exclusive cross sections for pair production of heavy mesons in photon-photon collision. The ratios of the exclusive cross sections for heavy mesons are obtained explicitly and the validity of results is discussed.