Person:
Bueno García, Juan Manuel

Profile Picture
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
Bueno García
First Name
Juan Manuel
Name
Bueno García, Juan Manuel

Filters

20201
1
1
Reset filters

Settings

Author: Aparicio, Borja ×

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Publication
    Open Access
    Fluorescent bicolour sensor for low-background neutrinoless double β decay experiments
    (Nature Research, 2020-06-22) Rivilla, Iván; Aparicio, Borja; Bueno García, Juan Manuel; Casanova, David; Tonnelé, Claire; Freixa, Zoraida; Herrero, Pablo; Rogero, Celia; Miranda, José I.; Martínez-Ojeda, Rosa M.; Monrabal, Francesc; Olave, Beñat; Schäfer, Thomas; Artal, Pablo; Nygren, David; Cossío, Fernando P.; Gómez-Cadenas, Juan J.; Física
    Observation of the neutrinoless double β decay is the only practical way to establish that neutrinos are their own antiparticles1. Because of the small masses of neutrinos, the lifetime of neutrinoless double β decay is expected to be at least ten orders of magnitude greater than the typical lifetimes of natural radioactive chains, which can mimic the experimental signature of neutrinoless double β decay2. The most robust identification of neutrinoless double β decay requires the definition of a signature signal—such as the observation of the daughter atom in the decay—that cannot be generated by radioactive backgrounds, as well as excellent energy resolution. In particular, the neutrinoless double β decay of 136Xe could be established by detecting the daughter atom, 136Ba2+, in its doubly ionized state3–8. Here we demonstrate an important step towards a ‘barium-tagging’ experiment, which identifies double β decay through the detection of a single Ba2+ ion. We propose a fluorescent bicolour indicator as the core of a sensor that can detect single Ba2+ ions in a high-pressure xenon gas detector. In a sensor made of a monolayer of such indicators, the Ba2+ dication would be captured by one of the molecules and generate a Ba2+-coordinated species with distinct photophysical properties. The presence of such a single Ba2+-coordinated indicator would be revealed by its response to repeated interrogation with a laser system, enabling the development of a sensor able to detect single Ba2+ ions in high-pressure xenon gas detectors for barium-tagging experiments.
Ir a Estadísticas