Lawrence Livermore National Laboratory



Jaime Ruz Armendáriz

Research Staff
Physics Division


 +1 925-423-9800


DegreeDiscipline/InstitutionYear
Ph.D. Experimental Astroparticle Physics
University of Zaragoza, Spain
2008

Research Interests

My research interests are focused on Astroparticle Physics, Nuclear Physics and rare-event searches. Currently my work concentrates on the application of novel TPC detectors techniques to characterize nuclear cross sections as well as axion dark matter searches. Recent detector developments together with ultra-low background techniques allow for the search of dark matter particles in phase-space parameter regions so far inaccessible to experiments.


Selected (Recent) Publications

Search for sub-eV mass solar axions by the CERN Axion Solar Telescope with 3He buffer gas, CAST Collaboration (M. Arik et al.), Phys. Rev.Lett., 2011.

CAST: Recent results & future outlook, I. G. Irastorza et al., J.Phys.Conf.Ser. 309:012001, 2011.

Towards a new generation axion helioscope, I. G. Irastorza et al., arXiv: 1103.5334, 2011.

New Micromegas for axion searches in CAST, T. Dafni et al., Nucl.Instrum.Meth.A 628:172-176, 2011.

Search for solar axion emission from 7Li and D(p,gamma)3He nuclear decays with the CAST gamma-ray calorimeter, CAST Collaboration (S. Andriamonje et al.), JCAP 1003:032, 2010.

Development and performance of Microbulk Micromegas detectors, S. Andriamonje et al., JINST 5:P02001, 2010.

Technique to measure the cosmic muon flux at the old Canfranc Underground Laboratory, A. Rodriguez et al., J.Phys.Conf.Ser. 203:012140, 2010.

New Micromegas detectors in the CAST experiment, S. Aune et al., Nucl.Instrum.Meth.A 604:15-19, 2009.

NEXT: A neutrinoless double beta decay experiment with gaseous xenon TPC, Thorsten Lux et al., PoS EPS-HEP2009:122, 2009.

Search for 14.4 keV solar axions emitted in the M1-transition of Fe-57 nuclei with CAST, CAST Collaboration (S. Andriamonje et al.), JCAP 0912:002, 2009.

Probing eV-scale axions with CAST, CAST Collaboration (E. Arik et al.), JCAP 0912:002, 2009.

Search for solar axions with the Time Projection Chamber of the CERN Axion Solar Telescope with 4-helium as buffer gas, Jaime Ruz Armendáriz, CERN-THESIS-2009-010, 2008.

The CAST experiment, J. Ruz et al., J.Phys.Conf.Ser. 110:062023, 2008.

CAST. CERN Axion Solar Telescope, J. Ruz for the CAST collaboration, Nucl.Instr. and Meth.A. 572:498-499, 2007.

Background studies and shielding effects for the TPC detector of the CAST experiment, G. Luzon et al., New J.Phys. 9:208, 2007.

The CAST Time Projection Chamber, D. Autiero et al., New J.Phys. 9:171, 2007.

An improved limit on the axion–photon coupling from the CAST experiment, CAST Collaboration (S. Andriamonje et al.), JCAP 0704:010, 2007.

The TPC shielding of the CAST experiment, J. Ruz et al., J.Phys.Conf.Ser. 39:191- 193, 2006.

First Results from the CERN Axion Solar Telescope, CAST Collaboration (K. Zioutas et al.), Phys.Rev.Lett. 94:121301, 2005.