arXiv subjects

A. Jacholkowska

Publications and source records attributed to A. Jacholkowska.

113 records · Page 7Linked to original sources

arXiv2002

High energy photon flux prediction from neutralino annihilation in the globular cluster Palomar 13

The distant globular cluster Palomar 13 has been found to have a very high mass-to-light ratio and its profile can be well fitted either by a King model with a tail, or with a NFW model. This cluster may be the first case of the many clumps predicted by CDM simulations that would not be disrupted by the galactic halo potential. We make the hypothesis that Pal 13 is made of neutralinos and run the DarkSuspect code to estimate the high-energy photon flux due to the annihilation of neutralinos through various channels in some benchmark scenarios. These low fluxes may be used as targets to be reached in proposals for future ground-based high altitude Cerenkov telescopes.

astro-ph↗

arXiv2001

Bottom Production

We review the prospects for bottom production physics at the LHC.

hep-ph↗

arXiv2000

B decays at the LHC

We review the prospects for B decay studies at the LHC.

hep-ph↗

arXiv1999

Library of SM and anomalous WWgamma couplings for the e+e- -> f \bar{f} nγMonte Carlo programs

A brief description of the library of the Standard Model and anomalous WWgamma coupling contribution to the matrix element for e+e- -> ν\barν nγprocess is given. It can be used with any Monte Carlo program for e+e- -> f \bar f nγprocesses. A working example of the application for the KORALZ version 4.04 is also provided.

hep-ph↗

arXiv1998

Higher-order QED corrections to e+e- to nu bar nu gamma at LEP2

The process e+e- to nu barnu + gamma with a distinctive ``photon-plus-missing-energy'' signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or to search for weakly interacting and invisible (s)particles. For meaningful comparisons of experimental data with theoretical predictions, higher-order QED corrections due to multiphoton emission must be taken into account. In the present paper we explain how the WW gamma coupling has been incorporated into the KORALZ Monte Carlo program, which can now be used for simulations of e+e- to nu bar nu + gamma events with higher-order QED corrections. The strategy of how to perform an experimental analysis in the presence of experimental cuts is proposed. The question of systematic uncertainties is addressed and some numerical results for the phenomenologically interesting case of anomalous WW gamma couplings are also given.

hep-ph↗