# Photon 2015

15-19 June 2015
Asia/Novosibirsk timezone
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# Small x, diffraction, and total cross sections

Date: 18 Jun 15:45 - 17:10

## Conveners

• Dr. Uehara, Sadaharu (KEK, High Energy Accelerator Research Organization)

## Timetable | Contribution List

Displaying 5 contributions out of 5
Session: Small x, diffraction, and total cross sections
Track: Small x, diffraction, and total cross sections
The shockwave formalism gives us tools for calculations beyond the usual approximations (dipole model...). Using it , we calculate the impact factor for jet production in diffractive DIS and for jet broadening in pA collisions.
Presented by Mr. Renaud BOUSSARIE on 18/6/2015 at 10:00
Type: Oral presentation Session: Small x, diffraction, and total cross sections
Track: Small x, diffraction, and total cross sections
We will discuss a possibility to study the $\rho^0(770)$ mesons production in ultrarelativistic ultraperipheral heavy ion collisions. We evaluate for the first time differential distributions for exclusive production of two $\rho^0(770)$ mesons (four charged pions) in the double scattering (photon-Pomeron) process [1]. The results will be compared with the contribution of two-photon mechanis ... More
Presented by Dr. Mariola KLUSEK-GAWENDA on 18/6/2015 at 10:50
Session: Small x, diffraction, and total cross sections
Track: Small x, diffraction, and total cross sections
The NLO nonlinear evolution equation for quadrupole operator is presented in the coordinate space. The quasi-conformal evolution equation is presented for the composite quadrupole opertor.
Presented by Dr. Andrey GRABOVSKY on 18/6/2015 at 9:45
Session: Small x, diffraction, and total cross sections
Track: Small x, diffraction, and total cross sections
J/Psi mesons are copiously produced at LHC. Inspired by the Mueller Navelet jet studies which allows to distinguish between BFKL and DGLAP dynamics, we propose to consider the production of a forward J/Psi accompanied by a backward jet. We make a feasibility study and compute the leading order differential cross section for such events in the BFKL framework.
Presented by Mr. Renaud BOUSSARIE on 18/6/2015 at 10:15
Session: Small x, diffraction, and total cross sections
Track: Related topics
The OLYMPUS experiment will measure the two-photon exchange amplitude in the elastic electron-proton scattering. This amplitude is a possible explanation for the significant, experimental discrepancy in the determination of the ratio of the proton electric to magnetic form factors, $R=\mu_p G_E^p/G_M^p$, determined using Rosenbluth separation and polarization transfer techniques. A measurem ... More
Presented by Dr. Uwe SCHNEEKLOTH on 18/6/2015 at 10:30
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