Speaker
Dr
Mariola Klusek-Gawenda
(Institute of Nuclear Physics PAN Krakow)
Description
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 mechanism discussed previously in the literature [2]. The double scattering mechanism populates large
dimeson invariant masses and large rapidity distance between mesons. The resulting distributions for four pions will be presented and compared to the STAR data [3]. Predictions for the LHC will be shown. We will discuss a possibility of identifying the double scattering mechanism at the LHC energy. The above analysis includes
the smearing of $\rho^0$ mass which was presented recently by the ALICE Collaboration [4].
[1] M. Klusek-Gawenda and A. Szczurek, Phys. Rev. C 89 (2013) 024912,
[2] M. Klusek, W. Schafer and A. Szczurek, Phys. Lett. B 674 (2009) 92,
[3] B. I. Abelev et al. (STAR Collaboration), Phys. Rev. C 81 (2010) 044901,
[4] Adam, Jaroslav et al. (ALICE Collaboration), arXiv:1503.09177 [nucl-ex].
Primary author
Prof.
Antoni Szczurek
(Institute of Nuclear Physics PAN Krakow)
Co-author
Dr
Mariola Klusek-Gawenda
(Institute of Nuclear Physics PAN Krakow)
