XeSAT2022 - International Workshop on Applications of Noble Gas Xenon to Science and Technology

Session

0√2β session 1, chair Julien Masbou

24 mai 2022, 15:30

Main auditorium

28. Invited: Searching for Majorana neutrinos with nEXO, Andrea Pocar

Dr Andrea Pocar (University of Massachusetts, Amherst), Dr Thomas Brunner (McGill University and TRIUMF), Julien Masbou (SUBATECH)

24/05/2022 15:30

nEXO will search for neutrinoless double beta (0νββ) decay in 5 tonnes of xenon enriched to 90% in the ββ-decaying isotope xenon-136 [1]. The observation of 0νββ decay would imply lepton number non-conservation of an otherwise conserved quantity in nature. At the same time, it would require neutrinos and anti-neutrinos to be the same particle, i.e., a Majorana fermion, a unique property among...

51. Invited : Searching the Grail: A background free bb0nu experiment using Ba2+ tagging in a High-Pressure Xenon Chamber, Ivan Rivilla

24/05/2022 16:20

53. Invited: Neutrinoless double-beta decay in a high-pressure gaseous Xenon-136 TPC: the PandaX-III experiment, Damien Neyret

Damien Neyret (CEA Saclay, Université Paris-Saclay (FR))

24/05/2022 16:50

19. Energy Resolution of the LZ detector to High Energy Electronic Recoils, Guilherme Pereira

Guilherme Pereira (LIP)

24/05/2022 17:20

The LUX-ZEPLIN (LZ) detector, currently operating at the SURF laboratory (South Dakota, USA), is a 10-ton liquid xenon dual-phase time projection chamber designed to search for dark matter particles. Due to its large mass and low backgrounds, the LZ scientific program also includes the search for the neutrinoless double beta decay of ¹³⁶Xe, highlighting the importance of achieving...

54. R2D2: a xenon TPC for neutrinoless double beta decay search, Anselmo Meregaglia

Anselmo Meregaglia (CENBG)

24/05/2022 17:35

21. Invited : AXEL : high pressure xenon gas time projection chamber foor neutrinoless double beta decay search

Sei Ban (ICEPP, The University of Tokyo)

The AXEL (A Xe ELectroluminescence) project aims to search for neutrinoless
double beta (0νββ) decay of 136Xe using high xenon gas time projection chamber.
Electroluminescence (EL) mode is used to readout the ionization signal in order to
achieve high energy resolution. We have developed a new modularized cellular
readout method called “Electroluminescence Light Collection Cell...

52. Invited : The NEXT experiment for ββ0ν searches: status and perspectivesstatus, Alberto Uson

97. Invited : The NEXT experiment for ββ0ν searches: status and perspectivesstatus, Alberto Uson

49. Invited: AXEL: high pressure xenon gas time projection chamber for neutrinoless double beta decay search, Sei Ban

Sei Ban (ICEPP, The University of Tokyo)

85. Invited: AXEL: high pressure xenon gas time projection chamber for neutrinoless double beta decay search, Sei Ban

86. Invited: Neutrinoless double-beta decay search results from KamLAND-Zen with 1 ton-year 136Xe exposure, Hideyoshi Ozaki

50. Invited: Neutrinoless double-beta decay search results from KamLAND-Zen with 1 ton-year 136Xe exposure, Hideyoshi Ozaki

84. Invited: Searching for Majorana neutrinos with nEXO, Thomas Brunner

48. Invited: Searching for Majorana neutrinos with nEXO, Thomas Brunner

76. Neutrinoless double-beta decay in a high pressure gaseous Xenon-136 TPC: the PandaX-III experiment

Damien Neyret (CEA Saclay, Université Paris-Saclay (FR))

The PandaX-III (Particle And Astrophysical Xenon Experiment III) experiment aims to search for Neutrinoless Double Beta Decay (NLDBD) of 136Xe at the China Jinping underground Laboratory (CJPL, Province of Sichuan, China), in order to study the Majorana nature of the neutrino. PandaX-III exploits the tracking capability of high pressure gaseous time projection chamber (TPC) to effectively...

17. Neutrinoless double-beta decay search results from KamLAND-Zen with 1 ton-year ^{136}Xe exposure

Hideyoshi Ozaki (Tohoku university)

KamLAND-Zen is a neutrinoless double-beta decay search experiment using a large size liquid scintillator(LS) detector (KamLAND). We started KamLAND-Zen 800 phase with 745 kg of Xenon in 2019.
We achieved to conduct an extremely low radioactive background experiment by reducing the radioactive impurities in the newly fabricated 25-um-thick and 3.8-m-diameter nylon film container for the...

75. NEXT status and prospects

Alberto Usón Andrés

Neutrinoless double beta decay is a hypothetical rare process that
violates lepton number conservation and implies the Majorana nature of
neutrinos, which could also give insight into their absolute mass
scale. The NEXT collaboration searches for such decay with Xe-136,
exploiting high-pressure xenon gas TPCs with electroluminescent
amplification. The principal trademarks of the...

8. R2D2: a xenon TPC for neutrinoless double beta decay search

The search for neutrinoless double beta decay could cast light on one critical piece missing in our knowledge i.e. the nature of the neutrino mass. Its observation is indeed the most sensitive experimental way to prove that neutrino is a Majorana particle. The observation of such a potentially rare process demands a detector with an excellent energy resolution, an extremely low radioactivity...

73. Searching the Grail: A background free bb0nu experiment usig Ba2+ tagging in a High Pressure Xenon Chamber

Juan-Jose Gomez-Cadenas

Autor : JJ Gomez-Cadenas
If the neutrino hierarchy is normal, the search for neutrinoless double beta decay, will need to be extended to reach a sensitivity of 10^27 or even 10^28 y. This will require exposures in the range of tens of ton year, but more importantly, a background free experiments, since even the slightest background will spoil their sensitivity. In this talk I will argue that...