Search

Your search keyword '"Pavan M"' showing total 2,351 results
Start Over Author "Pavan M"
2,351 results on '"Pavan M"'

1. Timely delivery of PORT for head and neck squamous cell carcinoma in a county hospital

Author

Ana Maria Rosas Herrera, Angela D. Haskins, Alexander N. Hanania, Pavan M. Jhaveri, Christina H. Chapman, Quillan Huang, and David J. Hernandez

Subjects
head and neck cancer, post‐operative radiation, quality improvement, safety‐net hospital, Otorhinolaryngology, RF1-547, Surgery, RD1-811
Abstract

Abstract Objectives The objective of this study was to compare the rate of post‐operative radiation therapy (PORT) initiation within 6 weeks for head and neck squamous cell carcinoma patients treated at a safety net, academic institutio between 2019 and 2021 versus those treated in 2022 after implementation of a new clinical pathway. Methods A retrospective case–control study was performed at a single tertiary care, safety‐net, academic institution. Patient demographics, tumor characteristics, dates of surgery, and other treatment dates were collected from the electronic medical record. The time from surgery to PORT was calculated. Patients who started radiation treatment within 42 days of surgery were regarded as having started PORT on time. The demographics, tumor characteristics, and rate of timely PORT for the two cohorts of patients were compared. Results From 2018 to 2021, our rate of PORT initiation within 6 weeks of surgery was 12% (n = 57). In 2022, our rate of timely PORT was 88% (n = 16), p

Published
2024
Full Text
View/download PDF

2. HISTOPATHOLOGICAL EVALUATION OF BRAIN AND RETINA OFADULT ZEBRAFISH EXPOSED TO SILVER NITRATE

Author

Pavan M. Patel, Chirag M. Modi, Divya M. Ramchandani, Urvesh D. Patel, Harshad B. Patel, Harsh R. Patel, Bhulesh V. Paida, and Amit R. Bhadaniya

Subjects
zebrafish, silver nitrate, histopathology, brain, retina, Veterinary medicine, SF600-1100
Abstract

The purpose of the study was to assess the histological alterations in the adult zebrafish (Danio rerio L.) brain and retina after long-term exposure to silver nitrate (AgNO3 ) at concentrations of 6.25, 12.5, 25, and 50 µg/L for 28 days. Although zebrafish subjected to varying concentrations of AgNO3 did not die, they did demonstrate a progression in the anatomical abnormalities in their brains. Following exposure to silver nitrate at various concentrations for 28 days, mild to moderate pathological changes have been seen in the corpus cerebella, hypothalamus, lobuscaudalis cerebella, medulla, and dorsal telencephalic area of the opticum tectum in the brain, but there have been no discernible changes in the retina. It was concluded that silver nitrate has the potential to harm the nervous system.

Published
2023
Full Text
View/download PDF

3. Photovoltaic based Hybrid Nanogrid

Author

Hazarathaiah Y., Deepak Karanam, Pavan M., Rahaman Shaik Abdul, Kumar Bonthala Dinesh, and Madhubabu C.

Subjects
nanogrid, wind, pv, energy management, inverter, Environmental sciences, GE1-350
Abstract

The hybrid photovoltaic (PV)- wind based power generation systems are installing on many rooftops of individual houses, apartments, institutions, hospitals and small scale industries worldwide. Even though it is connected to single phase utility grid, a battery is used for backup power supply during power cuts. The diesel generators also can be integrated to this system for supplying continuous power long term. This configuration can establish a nanogrid under low power systems. Many loads are operated under this nanogrid system, hence a proper control technique is required to maintain power quality as well as to compensate reactive power. Compensating reactive power demanded in nanogrid through the inverter can reduce the reactive power demand on the main utility grid. Individual maximum power point tracker (MPPT) circuits are employed for both PV and wind to harvest maximum power. The system is synchronized with single phase utility grid through the control of the inverter. In order to maintain the good power quality, controller is designed for inverter to maintain the single phase voltages at its reference values. MATLAB Simulink platform is used to present the results for testing the performance of the proposed method.

Published
2024
Full Text
View/download PDF

4. Gelatin methacrylate hydrogels culture model for glioblastoma cells enriches for mesenchymal-like state and models interactions with immune cells

Author

Nameeta Shah, Pavan M. Hallur, Raksha A. Ganesh, Pranali Sonpatki, Divya Naik, Komal Prasad Chandrachari, Ralph B. Puchalski, and Aditya Chaubey

Subjects
Medicine, Science
Abstract

Abstract Glioblastoma is the most lethal primary malignant brain tumor in adults. Simplified two-dimensional (2D) cell culture and neurospheres in vitro models fail to recapitulate the complexity of the tumor microenvironment, limiting its ability to predict therapeutic response. Three-dimensional (3D) scaffold-based models have emerged as a promising alternative for addressing these concerns. One such 3D system is gelatin methacrylate (GelMA) hydrogels, and we aimed to understand the suitability of using this system to mimic treatment-resistant glioblastoma cells that reside in specific niches. We characterized the phenotype of patient-derived glioma cells cultured in GelMA hydrogels (3D-GMH) for their tumorigenic properties using invasion and chemoresponse assays. In addition, we used integrated single-cell and spatial transcriptome analysis to compare cells cultured in 3D-GMH to neoplastic cells in vivo. Finally, we assessed tumor-immune cell interactions with a macrophage infiltration assay and a cytokine array. We show that the 3D-GMH system enriches treatment-resistant mesenchymal cells that are not represented in neurosphere cultures. Cells cultured in 3D-GMH resemble a mesenchymal-like cellular phenotype found in perivascular and hypoxic regions and recruit macrophages by secreting cytokines, a hallmark of the mesenchymal phenotype. Our 3D-GMH model effectively mimics the phenotype of glioma cells that are found in the perivascular and hypoxic niches of the glioblastoma core in situ, in contrast to the neurosphere cultures that enrich cells of the infiltrative edge of the tumor. This contrast highlights the need for due diligence in selecting an appropriate model when designing a study‘s objectives.

Published
2021
Full Text
View/download PDF

5. Measurement of the electric potential and the magnetic field in the shifted analysing plane of the KATRIN experiment

Author

Aker, M., Batzler, D., Beglarian, A., Behrens, J., Beisenkötter, J., Biassoni, M., Bieringer, B., Biondi, Y., Block, F., Bobien, S., Böttcher, M., Bornschein, B., Bornschein, L., Caldwell, T. S., Carminati, M., Chatrabhuti, A., Chilingaryan, S., Daniel, B. A., Debowski, K., Descher, M., Barrero, D. Díaz, Doe, P. J., Dragoun, O., Drexlin, G., Edzards, F., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Felden, A., Fengler, C., Fiorini, C., Formaggio, J. A., Forstner, C., Fränkle, F. M., Gauda, K., Gavin, A. S., Gil, W., Glück, F., Grössle, R., Gumbsheimer, R., Hannen, V., Hasselmann, L., Haußmann, N., Helbing, K., Heyns, S., Hickford, S., Hiller, R., Hillesheimer, D., Hinz, D., Höhn, T., Huber, A., Jansen, A., Karl, C., Kellerer, J., Khosonthongkee, K., Köhler, C., Köllenberger, L., Kopmann, A., Kovač, N., Krause, H., La Cascio, L., Lasserre, T., Lauer, J., Le, T. L., Lebeda, O., Lehnert, B., Li, G., Lokhov, A., Machatschek, M., Mark, M., Marsteller, A., Martin, E. L., McMichael, K., Melzer, C., Mertens, S., Mohanty, S., Mostafa, J., Müller, K., Nava, A., Neumann, H., Niemes, S., Parno, D. S., Pavan, M., Pinsook, U., Poon, A. W. P., Poyato, J. M. L., Pozzi, S., Priester, F., Ráliš, J., Ramachandran, S., Robertson, R. G. H., Rodenbeck, C., Röllig, M., Sack, R., Saenz, A., Salomon, R., Schäfer, P., Schlösser, M., Schlösser, K., Schlüter, L., Schneidewind, S., Schrank, M., Schürmann, J., Schütz, A. K., Schwemmer, A., Schwenck, A., Šefčík, M., Siegmann, D., Simon, F., Spanier, F., Spreng, D., Sreethawong, W., Steidl, M., Štorek, J., Stribl, X., Sturm, M., Suwonjandee, N., Jerome, N. Tan, Telle, H. H., Thorne, L. A., Thümmler, T., Titov, N., Tkachev, I., Urban, K., Valerius, K., Vénos, D., Weinheimer, C., Welte, S., Wendel, J., Wiesinger, C., Wilkerson, J. F., Wolf, J., Wüstling, S., Wydra, J., Xu, W., Zadorozhny, S., and Zeller, G.

Subjects
Physics - Instrumentation and Detectors
Abstract

The projected sensitivity of the effective electron neutrino-mass measurement with the KATRIN experiment is below 0.3 eV (90 % CL) after five years of data acquisition. The sensitivity is affected by the increased rate of the background electrons from KATRIN's main spectrometer. A special shifted-analysing-plane (SAP) configuration was developed to reduce this background by a factor of two. The complex layout of electromagnetic fields in the SAP configuration requires a robust method of estimating these fields. We present in this paper a dedicated calibration measurement of the fields using conversion electrons of gaseous $^\mathrm{83m}$Kr, which enables the neutrino-mass measurements in the SAP configuration., Comment: 19 pages, 11 figures

Published
2024

6. Direct neutrino-mass measurement based on 259 days of KATRIN data

Author

Aker, M., Batzler, D., Beglarian, A., Behrens, J., Beisenkötter, J., Biassoni, M., Bieringer, B., Biondi, Y., Block, F., Bobien, S., Böttcher, M., Bornschein, B., Bornschein, L., Caldwell, T. S., Carminati, M., Chatrabhuti, A., Chilingaryan, S., Daniel, B. A., Debowski, K., Descher, M., Barrero, D. Díaz, Doe, P. J., Dragoun, O., Drexlin, G., Edzards, F., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Felden, A., Fengler, C., Fiorini, C., Formaggio, J. A., Forstner, C., Fränkle, F. M., Gauda, K., Gavin, A. S., Gil, W., Glück, F., Grohmann, S., Grössle, R., Gumbsheimer, R., Gutknecht, N., Hannen, V., Hasselmann, L., Haußmann, N., Helbing, K., Henke, H., Heyns, S., Hickford, S., Hiller, R., Hillesheimer, D., Hinz, D., Höhn, T., Huber, A., Jansen, A., Karl, C., Kellerer, J., Khosonthongkee, K., Kleifges, M., Klein, M., Kohpeiß, J., Köhler, C., Köllenberger, L., Kopmann, A., Kovač, N., Kovalík, A., Krause, H., La Cascio, L., Lasserre, T., Lauer, J., Le, T., Lebeda, O., Lehnert, B., Li, G., Lokhov, A., Machatschek, M., Mark, M., Marsteller, A., Martin, E. L., Melzer, C., Mertens, S., Mohanty, S., Mostafa, J., Müller, K., Nava, A., Neumann, H., Niemes, S., Onillon, A., Parno, D. S., Pavan, M., Pinsook, U., Poon, A. W. P., Poyato, J. M. Lopez, Pozzi, S., Priester, F., Ráliš, J., Ramachandran, S., Robertson, R. G. H., Rodenbeck, C., Röllig, M., Röttele, C., Ryšavý, M., Sack, R., Saenz, A., Salomon, R., Schäfer, P., Schlösser, M., Schlösser, K., Schlüter, L., Schneidewind, S., Schnurr, U., Schrank, M., Schürmann, J., Schütz, A., Schwemmer, A., Schwenck, A., Šefčík, M., Siegmann, D., Simon, F., Spanier, F., Spreng, D., Sreethawong, W., Steidl, M., Štorek, J., Stribl, X., Sturm, M., Suwonjandee, N., Jerome, N. Tan, Telle, H. H., Thorne, L. A., Thümmler, T., Tirolf, S., Titov, N., Tkachev, I., Urban, K., Valerius, K., Vénos, D., Weinheimer, C., Welte, S., Wendel, J., Wiesinger, C., Wilkerson, J. F., Wolf, J., Wüstling, S., Wydra, J., Xu, W., Zadorozhny, S., and Zeller, G.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The fact that neutrinos carry a non-vanishing rest mass is evidence of physics beyond the Standard Model of elementary particles. Their absolute mass bears important relevance from particle physics to cosmology. In this work, we report on the search for the effective electron antineutrino mass with the KATRIN experiment. KATRIN performs precision spectroscopy of the tritium $\beta$-decay close to the kinematic endpoint. Based on the first five neutrino-mass measurement campaigns, we derive a best-fit value of $m_\nu^{2} = {-0.14^{+0.13}_{-0.15}}~\mathrm{eV^2}$, resulting in an upper limit of $m_\nu < {0.45}~\mathrm{eV}$ at 90 % confidence level. With six times the statistics of previous data sets, amounting to 36 million electrons collected in 259 measurement days, a substantial reduction of the background level and improved systematic uncertainties, this result tightens KATRIN's previous bound by a factor of almost two., Comment: 61 pages, 20 figures, 2 tables

Published
2024

7. Search for fractionally charged particles with CUORE

Author

CUORE Collaboration, Adams, D. Q., Alduino, C., Alfonso, K., Avignone III, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Cao, J., Capelli, S., Capelli, C., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Copello, S., Cremonesi, O., Creswick, R. J., D'Addabbo, A., Dafinei, I., Del Corso, F., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dixon, T., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Ghislandi, S., Giachero, A., Girola, M., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Guillaumon, P. V., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Helis, D. L., Huang, H. Z., Keppel, G., Kolomensky, Yu. G., Kowalski, R., Liu, R., Ma, L., Ma, Y. G., Marini, L., Maruyama, R. H., Mayer, D., Mei, Y., Moore, M. N., Napolitano, T., Nastasi, M., Nones, C., Norman, E. B., Nucciotti, A., Nutini, I., O'Donnell, T., Olmi, M., Oregui, B. T., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Pottebaum, E. G., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rosenfeld, C., Schmidt, B., Sharma, V., Singh, V., Sisti, M., Speller, D., Stark, P., Surukuchi, P. T., Taffarello, L., Tomei, C., Torres, A., Torres, J. A., Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Zimmermann, S., and Zucchelli, S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is a detector array comprised by 988 5$\;$cm$\times$5$\;$cm$\times$5$\;$cm TeO$_2$ crystals held below 20 mK, primarily searching for neutrinoless double-beta decay in $^{130}$Te. Unprecedented in size amongst cryogenic calorimetric experiments, CUORE provides a promising setting for the study of exotic through-going particles. Using the first tonne-year of CUORE's exposure, we perform a search for hypothesized fractionally charged particles (FCPs), which are well-motivated by various Standard Model extensions and would have suppressed interactions with matter. No excess of FCP candidate tracks is observed over background, setting leading limits on the underground FCP flux with charges between $e/24-e/5$ at 90\% confidence level. Using the low background environment and segmented geometry of CUORE, we establish the sensitivity of tonne-scale sub-Kelvin detectors to diverse signatures of new physics., Comment: 7 pages, 5 figures

Published
2024

8. Data-driven background model for the CUORE experiment

Author

CUORE Collaboration, Adams, D. Q., Alduino, C., Alfonso, K., Avignone III, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Cao, J., Capelli, S., Capelli, C., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Cremonesi, O., Creswick, R. J., D'Addabbo, A., Dafinei, I., Del Corso, F., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dixon, T., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Ghislandi, S., Giachero, A., Girola, M., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Guillaumon, P. V., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Helis, D. L., Huang, H. Z., Keppel, G., Kolomensky, Yu. G., Kowalski, R., Liu, R., Ma, L., Ma, Y. G., Marini, L., Maruyama, R. H., Mayer, D., Mei, Y., Moore, M. N., Napolitano, T., Nastasi, M., Nones, C., Norman, E. B., Nucciotti, A., Nutini, I., O'Donnell, T., Olmi, M., Oregui, B. T., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Ponce, I., Pottebaum, E. G., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rosenfeld, C., Schmidt, B., Sharma, V., Singh, V., Sisti, M., Speller, D., Surukuchi, P. T., Taffarello, L., Tomei, C., Torres, J. A, Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Zimmermann, S., and Zucchelli, S.

Subjects
Nuclear Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

We present the model we developed to reconstruct the CUORE radioactive background based on the analysis of an experimental exposure of 1038.4 kg yr. The data reconstruction relies on a simultaneous Bayesian fit applied to energy spectra over a broad energy range. The high granularity of the CUORE detector, together with the large exposure and extended stable operations, allow for an in-depth exploration of both spatial and time dependence of backgrounds. We achieve high sensitivity to both bulk and surface activities of the materials of the setup, detecting levels as low as 10 nBq kg$^{-1}$ and 0.1 nBq cm$^{-2}$, respectively. We compare the contamination levels we extract from the background model with prior radio-assay data, which informs future background risk mitigation strategies. The results of this background model play a crucial role in constructing the background budget for the CUPID experiment as it will exploit the same CUORE infrastructure.

Published
2024

9. Searching for Beyond the Standard Model physics using the improved description of $^{100}$Mo $2\nu\beta\beta$ decay spectral shape with CUPID-Mo

Author

Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Helis, D. L., Huang, H. Z., Huang, R., Imbert, L., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Mariam, R., Marini, L., Marnieros, S., Navick, X. F., Nones, C., Norman, E. B., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Pozzi, S., Previtali, E., Redon, Th., Rojas, A., Rozov, S., Sanglard, V., Scarpaci, J. A., Schmidt, B., Shen, Y., Shlegel, V. N., Šimkovic, F., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., War, B., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

The current experiments searching for neutrinoless double-$\beta$ ($0\nu\beta\beta$) decay also collect large statistics of Standard Model allowed two-neutrino double-$\beta$ ($2\nu\beta\beta$) decay events. These can be used to search for Beyond Standard Model (BSM) physics via $2\nu\beta\beta$ decay spectral distortions. $^{100}$Mo has a natural advantage due to its relatively short half-life, allowing higher $2\nu\beta\beta$ decay statistics at equal exposures compared to the other isotopes. We demonstrate the potential of the dual read-out bolometric technique exploiting a $^{100}$Mo exposure of 1.47 kg $\times$ y, acquired in the CUPID-Mo experiment at the Modane underground laboratory (France). We set limits on $0\nu\beta\beta$ decays with the emission of one or more Majorons, on $2\nu\beta\beta$ decay with Lorentz violation, and $2\nu\beta\beta$ decay with a sterile neutrino emission. In this analysis, we investigate the systematic uncertainty induced by modeling the $2\nu\beta\beta$ decay spectral shape parameterized through an improved model, an effect never considered before. This work motivates searches for BSM processes in the upcoming CUPID experiment, which will collect the largest amount of $2\nu\beta\beta$ decay events among the next-generation experiments.

Published
2024

10. With or without $\nu$? Hunting for the seed of the matter-antimatter asymmetry

Author

CUORE Collaboration, Adams, D. Q., Alduino, C., Alfonso, K., Avignone III, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Cao, J., Capelli, S., Capelli, C., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Cremonesi, O., Creswick, R. J., D'Addabbo, A., Dafinei, I., Del Corso, F., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dixon, T., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Ghislandi, S., Giachero, A., Girola, M., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Guillaumon, P. V., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Helis, D. L., Huang, H. Z., Keppel, G., Kolomensky, Yu. G., Kowalski, R., Liu, R., Ma, L., Ma, Y. G., Marini, L., Maruyama, R. H., Mayer, D., Mei, Y., Moore, M. N., Napolitano, T., Nastasi, M., Nones, C., Norman, E. B., Nucciotti, A., Nutini, I., O'Donnell, T., Olmi, M., Oregui, B. T., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Ponce, I., Pottebaum, E. G., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rosenfeld, C., Schmidt, B., Sharma, V., Singh, V., Sisti, M., Speller, D., Surukuchi, P. T., Taffarello, L., Tomei, C., Torres, J. A, Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Zimmermann, S., and Zucchelli, S.

Subjects
Nuclear Experiment
Abstract

The matter-antimatter asymmetry underlines the incompleteness of the current understanding of particle physics. Neutrinoless double-beta ($0\nu \beta\beta$) decay may help explain this asymmetry, while unveiling the Majorana nature of the neutrino. The CUORE experiment searches for $0\nu \beta\beta$ decay of $^{130}$Te using a tonne-scale cryogenic calorimeter operated at milli-kelvin temperatures. We report no evidence for $0\nu \beta\beta$ decay and place a lower limit on the half-life of T$_{1/2}$ $>$ 3.8 $\times$ 10$^{25}$ years (90% C.I.) with over 2 tonne$\cdot$year TeO$_2$ exposure. The tools and techniques developed for this result and the 5 year stable operation of nearly 1000 detectors demonstrate the infrastructure for a next-generation experiment capable of searching for $0\nu \beta\beta$ decay across multiple isotopes.

Published
2024

11. EFFECT OF GAMMA RAY STERILISATION ON DIFFERENTLY DECELLULARISED OMENTUM BASED SCAFFOLDS

Author

Ashna S., Dhanush Krishna B, Sajitha I.S, Vasudevan V.N, Pavan M, and Mammen J. Abraham

Subjects
extracellular matrix, gamma ray irradiation, omental scaffold, triton x-100, bile, texture profile analyser, Veterinary medicine, SF600-1100
Abstract

Terminal sterilisation of extracellular matrix scaffolds is an essential step in biomedical applications as well as ensuring product safety. Selection of appropriate sterilisation method is crucial in order to retain the structural and mechanical properties of the scaffold. The present study evaluated the effect of gamma ray sterilisation (25KGy) on biomechanical properties of differently decellularised omental scaffolds. Triton X- 100 and bile were used as decellularising agents and un-processed defattened omentum as control. Effect of irradiation on maximum force, tensile strength and Young’s modulus before and after irradiation was evaluated using Texture Profile Analyser. Our results indicated that, gamma ray irradiation reduced the maximum force and tensile strength of differently processed omental scaffolds. Bile treatment was found to have more protective action on the structural component of the scaffolds than triton X-100. Thus, bile treated omental scaffold showed better biomechanical properties for maximum force and tensile strength than triton X- 100 after irradiation.

Published
2019

12. Stubble burning: Root cause, impacts and its management in Indian scenario

Author

Rohith Gottipati, Pavan M N Burra, and Sandeep Menon

Subjects
Greenhouse gases, Happy seeder, In-situ management, Stubble burning, Stubble management, Environmental sciences, GE1-350
Abstract

The practice of purposefully setting fire to the residue that remained after harvest of rice and wheat crop is increasing periodically. Stubble burning has become one of the challenging issues in India in recent times. Government has been consistently instructing farmers not to burn the crop residues, instead asking them for in-situ management. Farmers are citing various complications in stubble management which pulling them to setting up fire to the stubble. Rice straw burning generates life threatening greenhouse gases which causes air pollution injury. Particulate matter (PM2.5) levels in the capital state of India (New Delhi) have been exceeded by 14 times than threshold level because of episodic agricultural fires in the neighbouring states namely Punjab, Haryana. A very limited study has been done so far on this complete issue despite of its importance. The present review tried to expose root cause, impacts on ecosystem and management strategies of stubble burning especially in India. There are plethora of possibilities in managing residue in sustainable ways including in-situ residue management, mushroom production, livestock feed, composting, biochar preparation, bio-thermal power plants and paper industries. Mechanical and effective method of in-situ management has been come into existence in the form of happy seeder. Depending on the land holding farmers can follow any of the said methods and manage their residue in sustainable way by overcoming the constraints thereby reducing the impacts on ecosystem.

Published
2021
Full Text
View/download PDF

13. Direct neutrino-mass measurement based on 259 days of KATRIN data

Author

Aker, M, Batzler, D, Beglarian, A, Behrens, J, Beisenkötter, J, Biassoni, M, Bieringer, B, Biondi, Y, Block, F, Bobien, S, Böttcher, M, Bornschein, B, Bornschein, L, Caldwell, TS, Carminati, M, Chatrabhuti, A, Chilingaryan, S, Daniel, BA, Debowski, K, Descher, M, Barrero, D Díaz, Doe, PJ, Dragoun, O, Drexlin, G, Edzards, F, Eitel, K, Ellinger, E, Engel, R, Enomoto, S, Felden, A, Fengler, C, Fiorini, C, Formaggio, JA, Forstner, C, Fränkle, FM, Gauda, K, Gavin, AS, Gil, W, Glück, F, Grohmann, S, Grössle, R, Gumbsheimer, R, Gutknecht, N, Hannen, V, Hasselmann, L, Haußmann, N, Helbing, K, Henke, H, Heyns, S, Hickford, S, Hiller, R, Hillesheimer, D, Hinz, D, Höhn, T, Huber, A, Jansen, A, Karl, C, Kellerer, J, Khosonthongkee, K, Kleifges, M, Klein, M, Kohpeiß, J, Köhler, C, Köllenberger, L, Kopmann, A, Kovač, N, Kovalík, A, Krause, H, Cascio, L La, Lasserre, T, Lauer, J, Le, T, Lebeda, O, Lehnert, B, Li, G, Lokhov, A, Machatschek, M, Mark, M, Marsteller, A, Martin, EL, Melzer, C, Mertens, S, Mohanty, S, Mostafa, J, Müller, K, Nava, A, Neumann, H, Niemes, S, Onillon, A, Parno, DS, Pavan, M, Pinsook, U, Poon, AWP, Poyato, JM Lopez, Pozzi, S, Priester, F, Ráliš, J, Ramachandran, S, Robertson, RGH, and Rodenbeck, C

Subjects
nucl-ex, hep-ex
Abstract

The fact that neutrinos carry a non-vanishing rest mass is evidence ofphysics beyond the Standard Model of elementary particles. Their absolute massbears important relevance from particle physics to cosmology. In this work, wereport on the search for the effective electron antineutrino mass with theKATRIN experiment. KATRIN performs precision spectroscopy of the tritium$\beta$-decay close to the kinematic endpoint. Based on the first fiveneutrino-mass measurement campaigns, we derive a best-fit value of $m_u^{2} ={-0.14^{+0.13}_{-0.15}}~\mathrm{eV^2}$, resulting in an upper limit of $m_u <{0.45}~\mathrm{eV}$ at 90 % confidence level. With six times the statistics ofprevious data sets, amounting to 36 million electrons collected in 259measurement days, a substantial reduction of the background level and improvedsystematic uncertainties, this result tightens KATRIN's previous bound by afactor of almost two.

Published
2024

15. Gold nanoparticle-based rapid detection and isolation of cells using ligand-receptor chemistry

Author

Pradipta Ranjan Rauta, Pavan M. Hallur, and Aditya Chaubey

Subjects
Medicine, Science
Abstract

Abstract Identification and isolation of low-frequency cells of interest from a heterogeneous cell mixture is an important aspect of many diagnostic applications (including enumeration of circulating tumor cells) and is integral to various assays in (cancer) biology. Current techniques typically require expensive instrumentation and are not amenable to high throughput. Here, we demonstrate a simple and effective platform for cell detection and isolation using gold nanoparticles (Au NPs) conjugated with hyaluronic acid (HA) i.e. Au-PEG-HA NPs. The proposed platform exploits ligand-receptor chemistry to detect/isolate cells with high specificity and efficiency. When the Au-PEG-HA NPs come in contact with cells that express CD44 (the receptor for HA), a clear colorimetric change occurs (along with an accompanying SPR peak shift from 521 nm to 559 nm) in the solution due to NPs-cell interaction. This clearly discernible, colorimetric change can be leveraged by point-of-care devices employed in diagnostic applications. Finally, we show that we can successfully isolate viable cells from a heterogeneous cell population (including from human blood samples) with high specificity, which can be used in further downstream applications. The developed NPs-based platform can be a convenient and cost-efficient alternative for diagnostic applications and for cell isolation or sorting in research laboratories.

Published
2018
Full Text
View/download PDF

16. Measurement of the $2\nu\beta\beta$ decay rate and spectral shape of $^{100}$Mo from the CUPID-Mo experiment

Author

Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, 6 M., Berge, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Helis, D. L., Huang, H. Z., Huang, R., Imbert, L., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Mariam, R., Marini, L., Marnieros, S., Navick, X. -F., Nones, C., Norman, E. B., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Pozzi, S., Previtali, E., Redon, Th., Rojas, A., Rozov, S., Sanglard, V., Scarpaci, J. A., Schmidt, B., Shen, Y., Shlegel, V. N., Simkovic, F., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velazquez, M., Ware, B., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Neutrinoless double beta decay ($0\nu\beta\beta$) is a yet unobserved nuclear process which would demonstrate Lepton Number violation, a clear evidence of beyond Standard Model physics. The process two neutrino double beta decay ($2\nu\beta\beta)$ is allowed by the Standard Model and has been measured in numerous experiments. In this letter, we report a measurement of $2\nu\beta\beta$ decay half-life of $^{100}$Mo to the ground state of $^{100}$Ru of $(7.07~\pm~0.02~\text{(stat.)}~\pm~0.11~\text{(syst.)})~\times~10^{18}$~yr by the CUPID-Mo experiment. With a relative precision of $\pm~1.6$ \% this is the most precise measurement to date of a $2\nu\beta\beta$ decay rate in $^{100}$Mo. In addition, we constrain higher-order corrections to the spectral shape which provides complementary nuclear structure information. We report a novel measurement of the shape factor $\xi_{3,1}=0.45~\pm 0.03~\text{(stat.)} \ \pm 0.05 \ \text{(syst.)}$, which is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of $2\nu\beta\beta$ decay., Comment: 8 pages, 5 figures

Published
2023

17. Searching for beyond the Standard Model physics using the improved description of 100Mo 2νββ decay spectral shape with CUPID-Mo

Author

Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Helis, D. L., Huang, H. Z., Huang, R., Imbert, L., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Mariam, R., Marini, L., Marnieros, S., Navick, X. F., Nones, C., Norman, E. B., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Pozzi, S., Previtali, E., Redon, Th., Rojas, A., Rozov, S., Sanglard, V., Scarpaci, J. A., Schmidt, B., Shen, Y., Shlegel, V. N., Šimkovic, F., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Ware, B., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Published
2024
Full Text
View/download PDF

18. Erratum: Measurement of the 2νββ Decay Half-Life of Te130 with CUORE [Phys. Rev. Lett. 126, 171801 (2021)]

Author

Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Davis, CJ, Dell’Oro, S, Di Domizio, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Ligi, C, Ma, L, G., Y, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O’Donnell, T, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Sharma, V, Singh, V, Sisti, M, Speller, D, Surukuchi, PT, and Taffarello, L

Subjects
Nuclear and Plasma Physics, Physical Sciences, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

This corrects the article DOI: 10.1103/PhysRevLett.126.171801.

Published
2023

19. Measurement of the 2νββ Decay Rate and Spectral Shape of Mo100 from the CUPID-Mo Experiment

Author

Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Celi, E, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Šimkovic, F, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Ware, B, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CUPID-Mo Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

Neutrinoless double beta decay (0νββ) is a yet unobserved nuclear process that would demonstrate Lepton number violation, a clear evidence of beyond standard model physics. The process two neutrino double beta decay (2νββ) is allowed by the standard model and has been measured in numerous experiments. In this Letter, we report a measurement of 2νββ decay half-life of ^{100}Mo to the ground state of ^{100}Ru of [7.07±0.02(stat)±0.11(syst)]×10^{18}  yr by the CUPID-Mo experiment. With a relative precision of ±1.6% this is the most precise measurement to date of a 2νββ decay rate in ^{100}Mo. In addition, we constrain higher-order corrections to the spectral shape, which provides complementary nuclear structure information. We report a novel measurement of the shape factor ξ_{3,1}=0.45±0.03(stat)±0.05(syst) based on a constraint on the ratio of higher-order terms from theory, which can be reliably calculated. This is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of 2νββ decay.

Published
2023

20. Partial conversion of elite maintainer genotype mas99 into new male sterile line suitable for aerobic and drought conditions through backcross breeding in rice

Author

Raghavendra P, Shailaja Hittalmani, Pavan M P and, and Uma M S

Subjects
aerobic rice, backcross, conversion, male sterility, spikelet fertility, Plant culture, SB1-1110
Abstract

Two populations were developed and advanced to BC3 generation using IR70369A and KCMS31A CMS lines as donors and MAS 99 as recurrent parent. In BC3F1 generation, the populations were evaluated with parents for morpho-floral traits under aerobic field condition. In both crosses, the mean values of number of tillers/plant (22 & 27), plant height at maturity (74 & 73cm), days to 50% flowering (95 & 97 days) were found comparable to the recurrent parent with superior floral traits such as pollen sterility (100%), stigma exertion (30% & 25%) and spikelet sterility (100%). IR70369A × MAS99 cross derived plants, A04, A35, A47, A65, A84 and KCMS31A × MAS99 cross derived plants, B06, B27, B30, B34 and B44 were identified as superior MAS99 converted CMS plants as indicated by morpho-floral traits and advanced to BC4F1. Between two crosses, IR70369A × MAS99 cross derived population was superior for days to 50% flowering and stigma exertion rate.

Published
2016
Full Text
View/download PDF

21. Electroless Deposition of Cu-SWCNT Composites

Author

Pavan M. V. Raja, Gibran L. Esquenazi, Daniel R. Jones, Jianhua Li, Bruce E. Brinson, Kourtney Wright, Cathren E. Gowenlock, and Andrew R. Barron

Subjects
single walled carbon nanotube, swcnt, copper, electroless, coating, Organic chemistry, QD241-441
Abstract

In this work, as-received HiPCO single walled carbon nanotubes (SWCNTs) are incorporated in a controllable manner at various concentrations into Cu-SWCNT composites via electroless plating, by varying the related reaction times, with polyethylene glycol (PEG) used as a dispersing agent. The resultant samples were analyzed using scanning electron microscopy (SEM) for morphology assessment, energy dispersive X-ray analysis (EDX) and X-ray photoelectron spectroscopy (XPS) for elemental analysis, X-ray diffraction (XRD) for the assessment of crystal phase identification, and Raman spectroscopy for the confirmation of the presence of the incorporated SWCNTs. The Cu-SWCNT composites were found to contain carbon, catalytic iron (associated with the raw, as-received SWCNTs), oxygen, and copper; the latter was found to be inversely proportional to carbon and iron contents. The oxygen (associated with both the SWCNT defect sites and oxidized copper surfaces) remained more or less constant regardless of the proportion of SWCNTs in the composites. The Raman IG:ID ratio remains within the experimental error constant, indicating that the electroless deposition does not have a deleterious effect on the SWCNTs. At short deposition times, SEM revealed a relatively dense structure comprising a distinctive fibrous morphology, suggestive of an underlying SWCNT substrate coated with copper; however, with increasing deposition, a more porous morphology is observed. The size of the granular particles increases up until 10 min of reaction, after which time it remains unchanged.

Published
2019
Full Text
View/download PDF

22. Measurement of the 2$\nu\beta\beta$ Decay Half-Life of Se-82 with the Global CUPID-0 Background Model

Author

Azzolini, O., Beeman, J. W., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., Bucci, C., Capelli, S., Caracciolo, V., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Colantoni, I., Cremonesi, O., Cruciani, A., D'Addabbo, A., Dafinei, I., Di Domizio, S., Dompè, V., Fantini, G., Ferroni, F., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Keppel, G., Kotila, J., Martinez, M., Nagorny, S. S., Nastasi, M., Nisi, S., Nones, C., Orlandi, D., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Ressa, A., Rusconi, C., Schäffner, K., Tomei, C., Vignati, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

We report on the results obtained with the global CUPID-0 background model, which combines the data collected in the two measurement campaigns for a total exposure of 16.6 kg$\times$yr. We identify with improved precision the background sources in the region of interest for neutrinoless double $\beta$-decay, making more solid the foundations for the background budget of the next-generation CUPID experiment. Relying on the excellent data reconstruction, we measure the two-neutrino double $\beta$-decay half-life of $^{82}$Se with unprecedented accuracy: $T_{1/2}^{2\nu} = [8.69 \pm 0.05 \textrm{(stat.)}~^{+0.09}_{-0.06} \textrm{(syst.)}] \times 10^{19}~\textrm{yr}$.

Published
2023

23. The background model of the CUPID-Mo $0\nu\beta\beta$ experiment

Author

Collaboration, CUPID-Mo, Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., de Marcillac, P., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Helis, D. L., Huang, H. Z., Huang, R., Imbert, L., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., Mariam, R., Marini, L., Marnieros, S., Navick, X. F., Nones, C., Norman, E. B., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pattavina, L., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Pozzi, S., Previtali, E., Redon, Th., Rojas, A., Rozov, S., Sanglard, V., Scarpaci, J. A., Schmidt, B., Shen, Y., Shlegel, V. N., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0\nu\beta\beta$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the $2\nu\beta\beta$ decay and other processes with high precision. We also measure the radio-purity of the Li$_{2}$$^{100}$MoO$_4$ crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7$^{+0.9}_{-0.8}$(stat)$^{+1.5}_{-0.7}$(syst)$\times10^{-3}$counts/$\Delta$E$_{FWHM}$/mol$_{iso}$/yr, the lowest in a bolometric $0\nu\beta\beta$ decay experiment.

Published
2023
Full Text
View/download PDF

24. A first test of CUPID prototypal light detectors with NTD-Ge sensors in a pulse-tube cryostat

Author

CUPID collaboration, Alfonso, K., Armatol, A., Augier, C., Avignone III, F. T., Azzolini, O., Balata, M., Barabash, A. S., Bari, G., Barresi, A., Baudin, D., Bellini, F., Benato, G., Berest, V., Beretta, M., Bettelli, M., Biassoni, M., Billard, J., Boldrini, V., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Campani, A., Capelli, C., Capelli, S., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chang, C., Chiesa, D., Clemenza, M., Colantoni, I., Copello, S., Craft, E., Cremonesi, O., Creswick, R. J., Cruciani, A., D'Addabbo, A., D'Imperio, G., Dabagov, S., Dafinei, I., Danevich, F. A., De Jesus, M., de Marcillac, P., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dixon, T., Dompé, V., Drobizhev, A., Dumoulin, L., Fantini, G., Faverzani, M., Ferri, E., Ferri, F., Ferroni, F., Figueroa-Feliciano, E., Foggetta, L., Formaggio, J., Franceschi, A., Fu, C., Fu, S., Fujikawa, B. K., Gallas, A., Gascon, J., Ghislandi, S., Giachero, A., Gianvecchio, A., Girola, M., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Grant, C., Gras, P., Guillaumon, P. V., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Helis, D. L., Huang, H. Z., Imbert, L., Johnston, J., Juillard, A., Karapetrov, G., Keppel, G., Khalife, H., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kowalski, R., Langford, T., Lefevre, M., Liu, R., Liu, Y., Loaiza, P., Ma, L., Madhukuttan, M., Mancarella, F., Marini, L., Marnieros, S., Martinez, M., Maruyama, R. H., Mas, Ph., Mayer, D., Mazzitelli, G., Mei, Y., Milana, S., Morganti, S., Napolitano, T., Nastasi, M., Nikkel, J., Nisi, S., Nones, C., Norman, E. B., Novosad, V., Nutini, I., O'Donnell, T., Olivieri, E., Olmi, M., Ouellet, J. L., Pagan, S., Pagliarone, C., Pagnanini, L., Pattavina, L., Pavan, M., Peng, H., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Poda, D. V., Polischuk, O. G., Ponce, I., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rizzoli, R., Rosenfeld, C., Rosier, P., Scarpaci, J. A., Schmidt, B., Sharma, V., Shlegel, V. N., Singh, V., Sisti, M., Slocum, P., Speller, D., Surukuchi, P. T., Taffarello, L., Tomei, C., Torres, J. A., Tretyak, V. I., Tsymbaliuk, A., Velazquez, M., Vetter, K. J., Wagaarachchi, S. L., Wang, G., Wang, L., Wang, R., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Xue, M., Yan, L., Yang, J., Yefremenko, V., Umatov, V. I., Zarytskyy, M. M., Zhang, J., Zolotarova, A., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

CUPID is a next-generation bolometric experiment aiming at searching for neutrinoless double-beta decay with ~250 kg of isotopic mass of $^{100}$Mo. It will operate at $\sim$10 mK in a cryostat currently hosting a similar-scale bolometric array for the CUORE experiment at the Gran Sasso National Laboratory (Italy). CUPID will be based on large-volume scintillating bolometers consisting of $^{100}$Mo-enriched Li$_2$MoO$_4$ crystals, facing thin Ge-wafer-based bolometric light detectors. In the CUPID design, the detector structure is novel and needs to be validated. In particular, the CUORE cryostat presents a high level of mechanical vibrations due to the use of pulse tubes and the effect of vibrations on the detector performance must be investigated. In this paper we report the first test of the CUPID-design bolometric light detectors with NTD-Ge sensors in a dilution refrigerator equipped with a pulse tube in an above-ground lab. Light detectors are characterized in terms of sensitivity, energy resolution, pulse time constants, and noise power spectrum. Despite the challenging noisy environment due to pulse-tube-induced vibrations, we demonstrate that all the four tested light detectors comply with the CUPID goal in terms of intrinsic energy resolution of 100 eV RMS baseline noise. Indeed, we have measured 70--90 eV RMS for the four devices, which show an excellent reproducibility. We have also obtained outstanding energy resolutions at the 356 keV line from a $^{133}$Ba source with one light detector achieving 0.71(5) keV FWHM, which is -- to our knowledge -- the best ever obtained when compared to $\gamma$ detectors of any technology in this energy range., Comment: Prepared for submission to JINST; 16 pages, 7 figures, and 1 table

Published
2023
Full Text
View/download PDF

25. Twelve-crystal prototype of Li$_2$MoO$_4$ scintillating bolometers for CUPID and CROSS experiments

Author

CUPID, collaborations, CROSS, Alfonso, K., Armatol, A., Augier, C., Avignone III, F. T., Azzolini, O., Balata, M., Bandac, I. C., Barabash, A. S., Bari, G., Barresi, A., Baudin, D., Bellini, F., Benato, G., Berest, V., Beretta, M., Bettelli, M., Biassoni, M., Billard, J., Boldrini, V., Branca, A., Brofferio, C., Bucci, C., Calvo-Mozota, J. M., Camilleri, J., Campani, A., Capelli, C., Capelli, S., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chang, C., Chiesa, D., Clemenza, M., Colantoni, I., Copello, S., Craft, E., Cremonesi, O., Creswick, R. J., Cruciani, A., D'Addabbo, A., D'Imperio, G., Dabagov, S., Dafinei, I., Danevich, F. A., De Jesus, M., de Marcillac, P., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dixon, T., Dompé, V., Drobizhev, A., Dumoulin, L., Fantini, G., Faverzani, M., Ferri, E., Ferri, F., Ferroni, F., Figueroa-Feliciano, E., Foggetta, L., Formaggio, J., Franceschi, A., Fu, C., Fu, S., Fujikawa, B. K., Gallas, A., Gascon, J., Ghislandi, S., Giachero, A., Gianvecchio, A., Girola, M., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Grant, C., Gras, P., Guillaumon, P. V., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Helis, D. L., Huang, H. Z., Ianni, A., Imbert, L., Johnston, J., Juillard, A., Karapetrov, G., Keppel, G., Khalife, H., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kowalski, R., Langford, T., Lefevre, M., Liu, R., Liu, Y., Loaiza, P., Ma, L., Madhukuttan, M., Mancarella, F., Marrache-Kikuchi, C. A., Marini, L., Marnieros, S., Martinez, M., Maruyama, R. H., Mas, Ph., Mayer, D., Mazzitelli, G., Mei, Y., Milana, S., Morganti, S., Napolitano, T., Nastasi, M., Nikkel, J., Nisi, S., Nones, C., Norman, E. B., Novosad, V., Nutini, I., O'Donnell, T., Olivieri, E., Olmi, M., Ouellet, J. L., Pagan, S., Pagliarone, C., Pagnanini, L., Pattavina, L., Pavan, M., Peng, H., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Poda, D. V., Polischuk, O. G., Ponce, I., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rizzoli, R., Rosenfeld, C., Rosier, P., Scarpaci, J. A., Schmidt, B., Sharma, V., Shlegel, V. N., Singh, V., Sisti, M., Slocum, P., Speller, D., Surukuchi, P. T., Taffarello, L., Tomei, C., Torres, J. A., Tretyak, V. I., Tsymbaliuk, A., Velazquez, M., Vetter, K. J., Wagaarachchi, S. L., Wang, G., Wang, L., Wang, R., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Xue, M., Yan, L., Yang, J., Yefremenko, V., Umatov, V. I., Zarytskyy, M. M., Zhang, J., Zolotarova, A., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

An array of twelve 0.28 kg lithium molybdate (LMO) low-temperature bolometers equipped with 16 bolometric Ge light detectors, aiming at optimization of detector structure for CROSS and CUPID double-beta decay experiments, was constructed and tested in a low-background pulse-tube-based cryostat at the Canfranc underground laboratory in Spain. Performance of the scintillating bolometers was studied depending on the size of phonon NTD-Ge sensors glued to both LMO and Ge absorbers, shape of the Ge light detectors (circular vs. square, from two suppliers), in different light collection conditions (with and without reflector, with aluminum coated LMO crystal surface). The scintillating bolometer array was operated over 8 months in the low-background conditions that allowed to probe a very low, $\mu$Bq/kg, level of the LMO crystals radioactive contamination by $^{228}$Th and $^{226}$Ra., Comment: Prepared for submission to JINST; 23 pages, 9 figures, and 4 tables

Published
2023
Full Text
View/download PDF

29. Human Action Recognition Based on Body Shape and Orbicular Grid

Author

Pavan, M., Jyothi, K., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Das, Swagatam, editor, Saha, Snehanshu, editor, Coello, Carlos A. Coello, editor, Rathore, Hemant, editor, and Bansal, Jagdish Chand, editor

Published
2024
Full Text
View/download PDF

33. Pentoxifylline in the Treatment of Acute Alcoholic Hepatitis

Author

Arun S, Anjith Vupputur, M Venkatraya Prabhu, Mahesha P, Suresh Shenoy, and Pavan M R

Subjects
acute alcoholic hepatitis, pentoxifylline, india, Microbiology, QR1-502, Chemistry, QD1-999
Abstract

Background/Aim: It has recently been reported that treatment with pentoxifylline, an inhibitor of tumour necrosis factor, improves survival in severe alcoholic hepatitis. The present study was initiated to test the hypothesis that pentoxifylline improves short term survival in patients with acute alcoholic hepatitis in Indian scenario. Materials and Methods: Single center prospective observational study. We evaluated patients diagnosed with alcoholic hepatitis who were admitted to our hospitals from September 2008 to September 2010. Patients with history of chronic alcohol intake or a recent alcoholic binge, Jaundice and one or more of the following clinical and laboratory findings: palpable tender hepatomegaly, Leucocytosis, hepatic encephalopathy and AST:ALT ratio>2 with absolute values of AST < 500 IU/L and ALT < 200 IU/L were included in the study. Patients with gastrointestinal hemorrhage and other possible causes of hepatitis were excluded. Results: Twenty of the 49 patients were treated with pentoxifylline. Pentoxyfylline treatment did not affect mortality significantly (p=0.081). However, treatment with pentoxyfylline in those with severe alcoholic hepatitis with DF≥32, MELD score≥21 and GAHS ≥9 significantly reduced mortality (p=0.037, 0.025, 0.001 respectively). Baseline bilirubin, creatinine, urea, MELD score and GAHS were significantly high among the patients who succumbed to the disease as compared to those who survived. Conclusion: Patients with severe alcoholic hepatitis (Maddrey’s discriminant function ≥32; or MELD score ≥21: or GAHS ≥9), can be treated with pentoxifylline, as it is safe, economical, and appears to be useful in improving short term mortality, especially in the Indian scenario

Published
2014
Full Text
View/download PDF

34. Electrodeposition of Cu–SWCNT Composites

Author

Pavan M. V. Raja, Gibran L. Esquenazi, Cathren E. Gowenlock, Daniel R. Jones, Jianhua Li, Bruce Brinson, and Andrew R. Barron

Subjects
single walled carbon nanotube, SWCNT, copper, electrodeposition, coating, Organic chemistry, QD241-441
Abstract

Single walled carbon nanotubes (SWCNTs) are used as a component of a plating solution of CuSO4 for direct current electrodeposition of Cu−SWCNT composites with varying nanotube proportions without the use of either a surfactant, a dispersing agent, or functionalization of the SWCNTs. The Cu−SWCNT composites are characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Raman spectroscopy. The composites are comprised of metallic Cu and SWCNTs with minor oxide impurities, as well as the residual (Fe) catalyst from the unpurified SWCNTs, in addition to displaying nanotube-mediated morphological differences. EDX analysis of carbon (wt%) is close to quantitative with respect to the wt% of SWCNTs added to the electrolysis solution. The presence of SWCNTs decreases the oxidation of the copper, as well as changing the identity of the oxide from CuO, for electrolysis of Cu, to Cu2O. Hard adherent Cu−SWCNT coatings are prepared by the addition of Cu powder to the electrolysis solution. The approach described in this paper will enable controlled synthesis of metal-nanomaterial composites that can potentially be processed further into high ampacity electrical conductors.

Published
2019
Full Text
View/download PDF

35. Outcomes associated with isoniazid preventive therapy for tuberculosis prevention among human immunodeficiency virus positive patients attending antiretroviral therapy clinics in Mangalore [version 1; peer review: awaiting peer review]

Author

Steffi Coelho, Vaishnavi Satish, Adail Lorainne Dsouza, Basavaprabhu Achappa, Nikhil Victor Dsouza, Ramesh Holla, Himani Kotian, and Pavan M R

Subjects
Research Article, Articles, HIV, AIDS, TB, PLHIV, IPT, ART
Abstract

Background The World Health Organization recommends that Isoniazid Preventive Therapy (IPT) should be administered to all People living with Human immunodeficiency virus (PLHIV) not currently suffering from tuberculosis (TB) to reduce the incidence of the same. The objectives of this study were to determine the incidence of PLHIV who contracted TB after receiving 6 months of IPT (followed up for ≥ 2 years), the incidence of PLHIV who developed tuberculosis when not on IPT, and the occurrence of adverse drug reactions due to IPT. Methods A Retrospective Cohort study was conducted in two ART centers in Mangalore, which included PLHIV who had completed 6 months of IPT from January 2017 to May 2018 and were followed up until May 2020; patients in the comparison group consisted of those attending ART centers during the same period who did not receive IPT. These data were retrieved from the case files of these patients from June to November 2020, entered into MS Excel, and analyzed using statistical package for social science (SPSS) version 25. Results The study included 1014 patients: 525 (51.8%) received IPT and 489 (48.2%) did not. Eight (1.5%) patients developed TB after IPT completion compared to 32 (6.5%) patients who developed TB from the non-IPT group. There was a 77% reduction in the incidence of developing TB in those patients who received IPT as compared to those who haven’t receive IPT (RR of 0.23, p value Conclusions This study indicated that the completion of IPT significantly reduced the TB burden, showing significant protection against TB for a minimum duration of 2 years. Thus, implementation of IPT should be strengthened, and strict compliance should be ensured to reduce TB infection among PLHIV.

Published
2024
Full Text
View/download PDF

37. Neutrinoless Double Beta Decay

Author

Adams, C., Alfonso, K., Andreoiu, C., Angelico, E., Arnquist, I. J., Asaadi, J. A. A., Avignone, F. T., Axani, S. N., Barabash, A. S., Barbeau, P. S., Baudis, L., Bellini, F., Beretta, M., Bhatta, T., Biancacci, V., Biassoni, M., Bossio, E., Breur, P. A., Brodsky, J. P., Brofferio, C., Brown, E., Brugnera, R., Brunner, T., Burlac, N., Caden, E., Calgaro, S., Cao, G. F., Cao, L., Capelli, C., Cardani, L., Fernandez, R. Castillo, Cattadori, C. M., Chana, B., Chernyak, D., Christofferson, C. D., Chu, P. -H., Church, E., Cirigliano, V., Collister, R., Comellato, T., Dalmasson, J., D'Andrea, V., Daniels, T., Darroch, L., Decowski, M. P., Demarteau, M., Peixoto, S. De Meireles, Detwiler, J. A., DeVoe, R. G., Di Domizio, S., Di Marco, N., di Vacri, M. L., Dolinski, M. J., Efremenko, Yu., Elbeltagi, M., Elliott, S. R., Engel, J., Fabris, L., Fairbank, W. M., Farine, J., Febbraro, M., Figueroa-Feliciano, E., Fields, D. E., Formaggio, J. A., Foust, B. T., Franke, B., Fu, Y., Fujikawa, B. K., Gallacher, D., Gallina, G., Garfagnini, A., Gingras, C., Gironi, L., Giuliani, A., Gold, M., Gornea, R., Grant, C., Gratta, G., Green, M. P., Grinyer, G. F., Gruszko, J., Guan, Y., Guinn, I. S., Guiseppe, V. E., Gutierrez, T. D., Hansen, E. V., Hardy, C. A., Hauptman, J., Heffner, M., Heeger, K. M., Henning, R., Hergert, H., Aguilar, D. Hervas, Hodak, R., Holt, J. D., Hoppe, E. W., Horoi, M., Huang, H. Z., Inoue, K., Jamil, A., Jochum, J., Jones, B. J. P., Kaizer, J., Karapetrov, G., Kharusi, S. Al, Kidd, M. F., Kishimoto, Y., Klein, J. R., Kolomensky, Yu. G., Kontul, I., Kornoukhov, V. N., Krause, P., Krucken, R., Kumar, K. S., Lang, K., Leach, K. G., Lenardo, B. G., Leonhardt, A., Li, A., Li, G., Li, Z., Licciardi, C., Lindsay, R., Lippi, I., Liu, J., Macko, M., MacLellan, R., Macolino, C., Majidi, S., Mamedov, F., Masbou, J., Massarczyk, R., Mastbaum, A. T., Mayer, D., Mazumdar, A., Mei, D. M., Mei, Y., Meijer, S. J., Mereghetti, E., Mertens, S., Mistry, K., Mitsui, T., Moore, D. C., Morella, M., Nattress, J. T., Neuberger, M., Ngwadla, X. E., Nones, C., Novosad, V., Nygren, D. R., Ondze, J. C. Nzobadila, O'Donnell, T., Gann, G. D. Orebi, Orrell, J. L., Ortega, G. S., Ouellet, J. L., Overman, C., Pagani, L., Palusova, V., Para, A., Pavan, M., Perna, A., Pertoldi, L., Pettus, W., Piepke, A., Piseri, P., Pocar, A., Povinec, P., Psihas, F., Pullia, A., Radford, D. C., Ramonnye, G. J, Rasiwala, H., Redchuk, M., Riboldi, S., Richardson, G., Rielage, K., Rogers, L., Rowson, P. C., Rukhadze, E., Saakyan, R., Sada, C., Salamanna, G., Salamida, F., Saldanha, R., Salvat, D. J., Sangiorgio, S., Schaper, D. C., Schoenert, S., Schwarz, M., Schwartz, S. E., Shitov, Y., Simkovic, F., Singh, V., Slavickova, M., Sousa, A. C., Spadoni, F. L., Speller, D. H., Stekl, I., Sumathi, R. R., Surukuchi, P. T., Tayloe, R., Tornow, W., Torres, J. A., Totev, T. I., Triambak, S., Tyuka, O. A., Vasilyev, S. I., Velazquez, M., Viel, S., Vogl, C., von Strum, K., Wang, Q., Waters, D., Watkins, S. L., Watts, M., Wei, W. -Z., Welliver, B., Wen, Liangjian, Wichoski, U., Wilde, S., Wilkerson, J. F., Winslow, L., Wiseman, C., Wu, X., Xu, W., Yang, H., Yang, L., Yu, C. H., Zeman, J., Zennamo, J., and Zuzel, G.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

This White Paper, prepared for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting related to the 2023 Nuclear Physics Long Range Plan, makes the case for double beta decay as a critical component of the future nuclear physics program. The major experimental collaborations and many theorists have endorsed this white paper., Comment: white paper submitted for the Fundamental Symmetries, Neutrons, and Neutrinos Town Meeting in support of the US Nuclear Physics Long Range Planning Process

Published
2022

38. New measurement of double-β decays of Mo100 to excited states of Ru100 with the CUPID-Mo experiment

Author

Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

The CUPID-Mo experiment, located at the Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20Li2Mo100O4 (LMO) calorimeters, each equipped with a Ge light detector for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double-β decays of Mo100 to the first 0+ and 2+ excited states of Ru100 using the full CUPID-Mo exposure (2.71kgyr of LMO). We measure the half-life of 2νββ decay to the 01+ state as T1/22ν→01+=(7.5±0.8(stat.)-0.3+0.4(syst.))×1020yr. The bolometric technique enables measurement of the electron energies as well as the γ rays from nuclear deexcitation and this allows us to set new limits on the two-neutrino decay to the 21+ state of T1/22ν→21+>4.4×1021yr(90% c.i.) and on the neutrinoless modes of T1/20ν→21+>2.1×1023yr(90% c.i.), T1/20ν→01+>1.2×1023yr(90% c.i.). Information on the electrons' spectral shape is obtained, which allows us to make the first comparison of the single and higher state dominance 2νββ decay models for the 01+ excited state of Ru100.

Published
2023

39. The background model of the CUPID-Mo 0νββ experiment

Author

Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Celi, E, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, de Marcillac, P, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation 0 νββ decay experiment, CUPID. It consisted of an array of 20 enriched Li 2100 MoO 4 bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the 2 νββ decay and other processes with high precision. We also measure the radio-purity of the Li 2100 MoO 4 crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7 -0.8+0.9 (stat) -0.7+1.5 (syst) ×10-3 counts/ Δ EFWHM/ mol iso/ year , the lowest in a bolometric 0 νββ decay experiment.

Published
2023

40. Status and prospects of discovery of 0??? decay with the CUORE detector

Author

Adams, DQ, Alduino, C, Alfonso, K, Avignone, FTIII, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Capelli, C, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D'Addabbo, A, Dafinei, I, Del Corso, F, Dell'Oro, S, Di Domizio, S, Di Lorenzo, S, Dompe, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gianvecchio, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Kowalski, R, Ligi, C, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O'Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Ponce, I, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, and Rosenfeld, C

Subjects
Astronomy & Astrophysics, Geophysics, Particle and high energy physics
Abstract

In this contribution we present the achievements of the CUORE experiment so far. It is the first tonne-scale bolometric detector and it is in stable data taking since 2018. We reached to collect about 1800 kg×yr of exposure of which more than 1 ton×year have been analysed. The CUORE detector is meant to search for the neutrinoless double β decay (0νββ) of the 130Te isotope. This is a beyond Standard Model process which could establish the nature of the neutrino to be Dirac or a Majorana particle. It is an alternative mode of the two-neutrinos double β decay, a rare decay which have been precisely measured by CUORE in the 130Te. We found no evidence of the 0νββ and we set a Bayesian lower limit of 2.2 ×1025yr on its half-life. The expertise achieved by CUORE set a milestone for any future bolometric detector, including CUPID, which is the planned next generation experiment searching for 0νββ with scintillating bolometers.

Published
2023

41. Search for Majoron-like particles with CUPID-0

Author

Collaboration, CUPID-0, Azzolini, O., Beeman, J. W., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., Bucci, C., Capelli, S., Caracciolo, V., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Colantoni, I., Cremonesi, O., Cruciani, A., D'Addabbo, A., Dafinei, I., Di Domizio, S., Dompè, V., Fantini, G., Ferroni, F., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Keppel, G., Kotila, J., Martinez, M., Nagorny, S., Nastasi, M., Nisi, S., Nones, C., Orlandi, D., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Ressa, A., Rusconi, C., Schäffner, K., Tomei, C., Vignati, M., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

We present the first search for the Majoron-emitting modes of the neutrinoless double $\beta$ decay ($0\nu\beta\beta\chi_0$) using scintillating cryogenic calorimeters. We analysed the CUPID-0 Phase I data using a Bayesian approach to reconstruct the background sources activities, and evaluate the potential contribution of the $^{82}$Se $0\nu\beta\beta\chi_0$. We considered several possible theoretical models which predict the existence of a Majoron-like boson coupling to the neutrino. The energy spectra arising from the emission of such bosons in the neutrinoless double $\beta$ decay have spectral indices $n=$ 1, 2, 3 or 7. We found no evidence of any of these decay modes, setting a lower limit (90% of credibility interval) on the half-life of 1.2 $\times$ 10$^{23}$ yr in the case of $n=$ 1, 3.8 $\times$ 10$^{22}$ yr for $n=$ 2, 1.4 $\times$ 10$^{22}$ yr for $n=$ 3 and 2.2 $\times$ 10$^{21}$ yr for $n=$ 7. These are the best limits on the $0\nu\beta\beta\chi_0$ half-life of the $^{82}$Se, and demonstrate the potentiality of the CUPID-0 technology in this field.

Published
2022
Full Text
View/download PDF

42. New measurement of double beta decays of $^{100}$Mo to excited states of $^{100}$Ru with the CUPID-Mo experiment

Author

Collaboration, CUPID-Mo, Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Helis, D. L., Huang, H. Z., Huang, R., Imbert, L., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotilla, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Mariam, R., Marini, L., Marnieros, S., Navick, X. -F., Nones, C., Norman, E. B., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Pozzi, S., Previtali, E., Redon, Th., Rojas, A., Rozov, S., Sanglard, V., Scarpaci, J. A., Schmidt, B., Shen, Y., Shlegel, V. N., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

The CUPID-Mo experiment, located at Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li$_2^{100}$MoO$_4$ (LMO) calorimeters each equipped with a Ge light detector (LD) for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double beta decays of $^{100}$Mo to the first 0$^+$ and $2^+$ excited states of $^{100}$Ru using the full CUPID-Mo exposure (2.71 kg$\times$yr of LMO). We measure the half-life of $2\nu\beta\beta$ decay to the $0^{+}_1$ state as $T_{1/2}^{2\nu \rightarrow 0_1^+}=7.5\pm 0.8 \ \text{(stat.)} \ ^{+ 0.4}_{-0.3} \ \text{(syst.)} )\times 10^{20} \ \mathrm{yr}$. The bolometric technique enables measurement of the electron energies as well as the gamma rays from nuclear de-excitation and this allows us to set new limits on the two-neutrino decay to the $2_1^+$ state of $T^{2\nu \rightarrow 2_1^+}_{1/2}>4.4\times 10^{21} \ \mathrm{yr} \ \text{(90 % c.i.)}$ and on the neutrinoless modes of $T_{1/2}^{0\nu\rightarrow 2_1^+}>2.1\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$, $T_{1/2}^{0\nu\rightarrow 0_1^+}>1.2\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$. Information on the electrons spectral shape is obtained which allows us to make the first comparison of the single state (SSD) and higher state (HSD) $2\nu\beta\beta$ decay models for the $0_1^+$ excited state of $^{100}$Ru., Comment: 22 pages, 15 figures

Published
2022

43. Final Result on the Neutrinoless Double Beta Decay of $^{82}$Se with CUPID-0

Author

Azzolini, O., Beeman, J. W., Bellini, F., Beretta, M., Biassoni, M., Brofferio, C., Bucci, C., Capelli, S., Caracciolo, V., Cardani, L., Carniti, P., Casali, N., Chiesa, D., Clemenza, M., Colantoni, I., Cremonesi, O., Cruciani, A., D'Addabbo, A., Dafinei, I., De Dominics, F., Di Domizio, S., Ferroni, F., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Keppel, G., Martinez, M., Nagorny, S., Nastasi, M., Nisi, S., Nones, C., Orlandi, D., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Rusconi, C., Schaeffner, K., Tomei, C., Vignati, M., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

CUPID-0, an array of Zn$^{82}$Se cryogenic calorimeters, was the first medium-scale demonstrator of the scintillating bolometers technology. The first project phase (March 2017 - December 2018) allowed the most stringent limit on the neutrinoless double beta decay half-life of the isotope of interest, $^{82}$Se, to be set. After a six months long detector upgrade, CUPID-0 began its second and last phase (June 2019 - February 2020). In this letter, we describe the search for neutrinoless double beta decay of $^{82}$Se with a total exposure (phase I + II) of 8.82 kg$\times$yr of isotope. We set a limit on the half-life of $^{82}$Se to the ground state of $^{82}$Kr of T$^{0\nu}_{1/2}$($^{82}$Se)$>$ 4.6$\times \mathrm{10}^{24}$ yr (90\% credible interval), corresponding to an effective Majorana neutrino mass m$_{\beta\beta} <$ (263 -- 545) meV. We also set the most stringent lower limits on the neutrinoless decays of $^{82}$Se to the 0$_1^+$, 2$_1^+$ and 2$_2^+$ excited states of $^{82}$Kr, finding 1.8$\times$10$^{23}$ yr, 3.0$\times$10$^{23}$ yr, 3.2$\times$10$^{23}$ yr (90$\%$ credible interval) respectively.

Published
2022
Full Text
View/download PDF

44. An Energy-dependent Electro-thermal Response Model of CUORE Cryogenic Calorimeter

Author

CUORE Collaboration, Adams, D. Q., Alduino, C., Alfonso, K., Avignone III, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Canonica, L., Cao, X. G., Capelli, S., Capelli, C., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Copello, S., Cremonesi, O., Creswick, R. J., D'Addabbo, A., Dafinei, I., Del Corso, F., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Ghislandi, S., Giachero, A., Gianvecchio, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Huang, R. G., Huang, H. Z., Johnston, J., Keppel, G., Kolomensky, Yu. G., Kowalski, R., Li, M., Liu, R., Ma, L., Ma, Y. G., Marini, L., Maruyama, R. H., Mayer, D., Mei, Y., Morganti, S., Napolitano, T., Nastasi, M., Nikkel, J., Nones, C., Norman, E. B., Nucciotti, A., Nutini, I., O'Donnell, T., Olmi, M., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rosenfeld, C., Sangiorgio, S., Schmidt, B., Scielzo, N. D., Sharma, V., Singh, V., Sisti, M., Speller, D., Surukuchi, P. T., Taffarello, L., Terranova, F., Tomei, C., Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Wang, B. S., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Zimmermann, S., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is the most sensitive experiment searching for neutrinoless double-beta decay ($0\nu\beta\beta$) in $^{130}\text{Te}$. CUORE uses a cryogenic array of 988 TeO$_2$ calorimeters operated at $\sim$10 mK with a total mass of 741 kg. To further increase the sensitivity, the detector response must be well understood. Here, we present a non-linear thermal model for the CUORE experiment on a detector-by-detector basis. We have examined both equilibrium and dynamic electro-thermal models of detectors by numerically fitting non-linear differential equations to the detector data of a subset of CUORE channels which are well characterized and representative of all channels. We demonstrate that the hot-electron effect and electric-field dependence of resistance in NTD-Ge thermistors alone are inadequate to describe our detectors' energy dependent pulse shapes. We introduce an empirical second-order correction factor in the exponential temperature dependence of the thermistor, which produces excellent agreement with energy-dependent pulse shape data up to 6 MeV. We also present a noise analysis using the fitted thermal parameters and show that the intrinsic thermal noise is negligible compared to the observed noise for our detectors., Comment: 34 pages, 14 figures, 6 tables

Published
2022

45. New direct limit on neutrinoless double beta decay half-life of $^{128}$Te with CUORE

Author

Adams, D. Q., Alduino, C., Alfonso, K., Avignone III, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Canonica, L., Cao, X. G., Capelli, C., Capelli, S., Cappelli, L., Cardani, L., Carniti, P., Casali, N., Celi, E., Chiesa, D., Clemenza, M., Copello, S., Cremonesi, O., Creswick, R. J., D'Addabbo, A., Dafinei, I., Del Corso, F., Dell'Oro, S., Di Domizio, S., Di Lorenzo, S., Dompè, V., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Ghislandi, S., Giachero, A., Gianvecchio, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Han, K., Hansen, E. V., Heeger, K. M., Huang, R. G., Huang, H. Z., Johnston, J., Keppel, G., Kolomensky, Yu. G., Kowalski, R., Ligi, C., Liu, R., Ma, L., Ma, Y. G., Marini, L., Maruyama, R. H., Mayer, D., Mei, Y., Morganti, S., Napolitano, T., Nastasi, M., Nikkel, J., Nones, C., Norman, E. B., Nucciotti, A., Nutini, I., O'Donnell, T., Olmi, M., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Ressa, A., Rosenfeld, C., Sangiorgio, S., Schmidt, B., Scielzo, N. D., Sharma, V., Singh, V., Sisti, M., Speller, D., Surukuchi, P. T., Taffarello, L., Terranova, F., Tomei, C., Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Wang, B. S., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Zimmermann, S., and Zucchelli, S.

Subjects
Nuclear Experiment
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) at Laboratori Nazionali del Gran Sasso of INFN in Italy is an experiment searching for neutrinoless double beta (0$\nu\beta\beta$) decay. Its main goal is to investigate this decay in $^{130}$Te, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. In this work, we present our first results on the search for \nbb decay of $^{128}$Te, the Te isotope with the second highest natural isotopic abundance. We find no evidence for this decay, and using a Bayesian analysis we set a lower limit on the $^{128}$Te \nbb decay half-life of T$_{1/2} > 3.6 \times 10^{24}$ yr (90\% CI). This represents the most stringent limit on the half-life of this isotope, improving by over a factor 30 the previous direct search results, and exceeding those from geochemical experiments for the first time.

Published
2022
Full Text
View/download PDF

46. Latest Results from the CUORE Experiment

Author

Nutini, I, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Dell’Oro, S, Domizio, SD, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Kowalski, R, Ligi, C, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, O’Donnell, T, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, and Sharma, V

Subjects
Mathematical Physics, Classical Physics, Condensed Matter Physics, General Physics, Classical physics, Condensed matter physics
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for 0 νββ decay that has been able to reach the one-tonne mass scale. The detector, located at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, consists of an array of 988 TeO 2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of about 10 mK and in April 2021 released its 3 rd result of the search for 0 νββ, corresponding to a tonne-year of TeO 2 exposure. This is the largest amount of data ever acquired with a solid state detector and the most sensitive measurement of 0 νββ decay in 130Te ever conducted. We present the current status of CUORE search for 0 νββ with the updated statistics of one tonne-yr. We finally give an update of the CUORE background model and the measurement of the 130Te 2 νββ decay half-life and decay to excited states of 130Xe , studies performed using an exposure of 300.7 kg yr.

Published
2022

47. Expected sensitivity to 128Te neutrinoless double beta decay with the CUORE TeO2 cryogenic bolometers

Author

Dompè, V, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Dell’Oro, S, Di Domizio, S, Di Lorenzo, S, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Kowalski, R, Ligi, C, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O’Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, Rosenfeld, C, Rusconi, C, Sakai, M, and Sangiorgio, S

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Neutrinoless double beta decay, Tellurium, 128-Te, Cryogenic bolometers, Mathematical Physics, Classical Physics, Condensed Matter Physics, General Physics, Classical physics, Condensed matter physics
Abstract

The CUORE experiment is a ton-scale array of TeO 2 cryogenic bolometers located at the underground Laboratori Nazionali del Gran Sasso of Istituto Nazionale di Fisica Nucleare (INFN), in Italy. The CUORE detector consists of 988 crystals operated as source and detector at a base temperature of ∼ 10 mK. Such cryogenic temperature is reached and maintained by means of a custom built cryogen-free dilution cryostat, designed with the aim of minimizing the vibrational noise and the environmental radioactivity. The primary goal of CUORE is the search for neutrinoless double beta decay of 130Te , but thanks to its large target mass and ultra-low background it is suitable for the study of other rare processes as well, such as the neutrinoless double beta decay of 128Te. This tellurium isotope is an attractive candidate for the search of this process, due to its high natural isotopic abundance of 31.75%. The transition energy at (866.7 ± 0.7) keV lies in a highly populated region of the energy spectrum, dominated by the contribution of the two-neutrino double beta decay of 130Te. As the first ton-scale infrastructure operating cryogenic TeO 2 bolometers in stable conditions, CUORE is able to achieve a factor > 10 higher sensitivity to the neutrinoless double beta decay of this isotope with respect to past direct experiments.

Published
2022

48. New Direct Limit on Neutrinoless Double Beta Decay Half-Life of Te128 with CUORE

Author

Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Capelli, C, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Del Corso, F, Dell’Oro, S, Di Domizio, S, Di Lorenzo, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gianvecchio, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Kowalski, R, Liu, R, Ma, L, G., Y, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O’Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, Rosenfeld, C, Sangiorgio, S, and Schmidt, B

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Half-Life, Bayes Theorem, Granisetron, CUORE Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) at Laboratori Nazionali del Gran Sasso of INFN in Italy is an experiment searching for neutrinoless double beta (0νββ) decay. Its main goal is to investigate this decay in ^{130}Te, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. In this Letter, we present our first results on the search for 0νββ decay of ^{128}Te, the Te isotope with the second highest natural isotopic abundance. We find no evidence for this decay, and using a Bayesian analysis we set a lower limit on the ^{128}Te 0νββ decay half-life of T_{1/2}>3.6×10^{24}  yr (90% CI). This represents the most stringent limit on the half-life of this isotope, improving by over a factor of 30 the previous direct search results, and exceeding those from geochemical experiments for the first time.

Published
2022

49. An energy-dependent electro-thermal response model of CUORE cryogenic calorimeter

Author

Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Capelli, C, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D'Addabbo, A, Dafinei, I, Del Corso, F, Dell'Oro, S, Di Domizio, S, Di Lorenzo, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gianvecchio, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, Yu G, Kowalski, R, Li, M, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O'Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, Rosenfeld, C, and Sangiorgio, S

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Cryogenic detectors, Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter etc), Double-beta decay detectors, Engineering, Nuclear & Particles Physics, Physical sciences
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is the most sensitive experiment searching for neutrinoless double-beta decay (0νββ) in 130Te. CUORE uses a cryogenic array of 988 TeO2 calorimeters operated at ∼10 mK with a total mass of 741 kg. To further increase the sensitivity, the detector response must be well understood. Here, we present a non-linear thermal model for the CUORE experiment on a detector-by-detector basis. We have examined both equilibrium and dynamic electro-thermal models of detectors by numerically fitting non-linear differential equations to the detector data of a subset of CUORE channels which are well characterized and representative of all channels. We demonstrate that the hot-electron effect and electric-field dependence of resistance in NTD-Ge thermistors alone are inadequate to describe our detectors' energy-dependent pulse shapes. We introduce an empirical second-order correction factor in the exponential temperature dependence of the thermistor, which produces excellent agreement with energy-dependent pulse shape data up to 6 MeV. We also present a noise analysis using the fitted thermal parameters and show that the intrinsic thermal noise is negligible compared to the observed noise for our detectors.

Published
2022

50. The CUORE and CUORE-0 experiments at LNGS

Author

D’Addabbo A., Alduino C., Alfonso K., Artusa D. R., Avignone F. T., Azzolini O., Banks T. I., Bari G., Beeman J.W., Bellini F., Bersani A., Biassoni M., Branca A., Brofferio C., Bucci C., Camacho A., Caminata A., Canonica L., Cao X. G., Capelli S., Cappelli L., Carbone L., Cardani L., Carniti P., Casali N., Cassina L., Chiesa D., Chott N., Clemenza M., Copello S., Cosmelli C., Cremonesi O., Creswick R. J., Cushman J. S., Dafinei I., Davis C. J., Dell’Oro S., Deninno M. M., Di Domizio S., Di Vacri M. L., Drobizhev A., Fang D. Q., Faverzani M., Fernandes G., Ferri E., Ferroni F., Fiorini E., Franceschi M. A., Freedman S. J., Fujikawa B. K., Giachero A., Gironi L., Giuliani A., Gladstone L., Gorla P., Gotti C., Gutierrez T. D., Haller E. E., Han K., Hansen E., Heeger K. M., Hennings-Yeomans R., Hickerson K. P., Huang H. Z., Kadel R., Keppel G., Kolomensky Yu. G., Leder A., Ligi C., Lim K. E., Liu X., Ma Y. G., Maino M., Marini L., Martinez M., Maruyama R. H., Mei Y., Moggi N., Morganti S., Mosteiro P. J., Napolitano T., Nones C., Norman E. B., Nucciotti A., O’Donnell T., Orio F., Ouellet J. L., Pagliarone C. E., Pallavicini M., Palmieri V., Pattavina L., Pavan M., Pessina G., Pettinacci V., Piperno G., Pira C., Pirro S., Pozzi S., Previtali E., Rosenfeld C., Rusconi C., Sangiorgio S., Santone D., Scielzo N.D., Singh V., Sisti M., Smith A. R., Taffarello L., Tenconi M., Terranova F., Tomei C., Trentalange S., Vignati M., Wagaarachchi S. L., Wang B. S., Wang H. W., Wilson J., Winslow L. A., Wise T., Woodcraft A., Zanotti L., Zhang G. Q., Zhu B. X., Zimmermann S., and Zucchelli S.

Subjects
Physics, QC1-999
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is a 1-ton scale bolometric experiment devoted to the search of the neutrinoless double-beta decay (0νββ) in 130Te. The CUORE detector consists of an array of 988 TeO2 crystals operated at 10 mK. CUORE-0 is the CUORE demonstrator: it has been built to test the performance of the upcoming CUORE experiment and represents the largest 130Te bolometric setup ever operated. CUORE-0 has been running at Laboratori Nazionali del Gran Sasso (Italy) from 2013 to 2015. The final CUORE-0 analysis on 0νββ and the corresponding detector performance are presented. The present status of the CUORE experiment, now in its final construction and commissioning phase, are discussed. The results from assembly of the detector and the commissioning of the cryostat are reported.

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results