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1. Direct Measurement of the $^{39}$Ar Half-life from 3.4 Years of Data with the DEAP-3600 Detector

Author

DEAP Collaboration, Adhikari, P., Ajaj, R., Alpízar-Venegas, M., Amaudruz, P. -A., Anstey, J., Auty, D. J., Batygov, M., Beltran, B., Bina, C. E., Bonivento, W. M., Boulay, M. G., Bueno, J. F., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Chen, Y., Choudhary, S., Cleveland, B. T., Crampton, R., Daugherty, S., DelGobbo, P., Di Stefano, P., Dolganov, G., Doria, L., Duncan, F. A., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Ford, R. J., Gahan, D., Gallacher, D., Garai, A., Abia, P. García, Garg, S., Giampa, P., Giménez-Alcázar, A., Goeldi, D., Golovko, V. V., Gorel, P., Graham, K., Grobov, A., Hallin, A. L., Hamstra, M., Haskins, S., Hu, J., Hucker, J., Hugues, T., Ilyasov, A., Jigmeddorj, B., Jillings, C. J., Joy, A., Kaur, G., Kemp, A., Yazdi, M. Khoshraftar, Kuźniak, M., La Zia, F., Lai, M., Langrock, S., Lehnert, B., LePage-Bourbonnais, J., Levashko, N., Lissia, M., Luzzi, L., Machulin, I., Maru, A., Mason, J., McDonald, A. B., McElroy, T., McLaughlin, J. B., Mielnichuk, C., Mirasola, L., Moharana, A., Monroe, J., Murray, A., Ng, C., Oliviéro, G., Olszewski, M., Pal, S., Papi, D., Park, B., Perry, M., Pesudo, V., Pollmann, T. R., Rad, F., Rethmeier, C., Retière, F., García, I. Rodríguez, Roszkowski, L., Santorelli, R., Schuckman II, F. G., Seth, S., Shalamova, V., Skensved, P., Smirnova, T., Sobotkiewich, K., Sonley, T., Sosiak, J., Soukup, J., Stainforth, R., Stringer, M., Tang, J., Vázquez-Jáuregui, E., Viel, S., Vyas, B., Walczak, M., Walding, J., Ward, M., Westerdale, S., Wormington, R., and Zuñiga-Reyes, A.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

The half-life of $^{39}$Ar is measured using the DEAP-3600 detector located 2 km underground at SNOLAB. In 2016-2020, DEAP-3600 used a target mass of (3269 $\pm$ 24) kg of liquid argon distilled from the atmosphere in a direct-detection dark matter search. Such an argon mass also enables direct measurements of argon isotope properties. The decay of $^{39}$Ar in DEAP-3600 is the dominant source of triggers by two orders of magnitude, ensuring high statistics and making DEAP-3600 well-suited for measuring this isotope's half-life. Use of the pulse-shape discrimination technique in DEAP-3600 allows for powerful discrimination between nuclear recoils and electron recoils, resulting in the selection of a clean sample of $^{39}$Ar decays. Observing over a period of 3.4 years, the $^{39}$Ar half-life is measured to be $(302 \pm 8_{\rm stat} \pm 6_{\rm sys})$ years. This new direct measurement suggests that the half-life of $^{39}$Ar may be significantly longer than the accepted value, with potential implications for measurements using this isotope's half-life as input., Comment: 11 pages, 8 figures

Published
2025

2. Relative Measurement and Extrapolation of the Scintillation Quenching Factor of $\alpha$-Particles in Liquid Argon using DEAP-3600 Data

Author

The DEAP Collaboration, Adhikari, P., Alpízar-Venegas, M., Amaudruz, P. -A., Anstey, J., Auty, D. J., Batygov, M., Beltran, B., Bina, C. E., Bonivento, W., Boulay, M. G., Bueno, J. F., Cai, B., Cárdenas-Montes, M., Choudhary, S., Cleveland, B. T., Crampton, R., Daugherty, S., DelGobbo, P., Di Stefano, P., Dolganov, G., Doria, L., Duncan, F. A., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Ford, R. J., Gahan, D., Gallacher, D., Abia, P. García, Garg, S., Giampa, P., Giménez-Alcázar, A., Goeldi, D., Gorel, P., Graham, K., Hallin, A. L., Hamstra, M., Haskins, S., Hu, J., Hucker, J., Hugues, T., Ilyasov, A., Jigmeddorj, B., Jillings, C. J., Kaur, G., Yazdi, M. Khoshraftar, Kemp, A., Kuźniak, M., La Zia, F., Lai, M., Langrock, S., Lehnert, B., Levashko, N., Lissia, M., Luzzi, L., Machulin, I., Maru, A., Mason, J., McDonald, A. B., McElroy, T., McLaughlin, J. B., Mielnichuk, C., Mirasola, L., Moharana, A., Monroe, J., Murray, A., Ng, C., Oliviéro, G., Olszewski, M., Pal, S., Papi, D., Park, B., Perry, M., Pesudo, V., Pollmann, T. R., Rad, F., Rethmeier, C., Retière, F., Roszkowski, L., Santorelli, R., Schuckman II, F. G., Seth, S., Shalamova, V., Skensved, P., Smirnova, T., Sobotkiewich, K., Sonley, T., Sosiak, J., Soukup, J., Stainforth, R., Stringer, M., Tang, J., Vázquez-Jáuregui, E., Viel, S., Vyas, B., Walczak, M., Walding, J., Ward, M., Westerdale, S., and Wormington, R.

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

The knowledge of scintillation quenching of $\alpha$-particles plays a paramount role in understanding $\alpha$-induced backgrounds and improving the sensitivity of liquid argon-based direct detection of dark matter experiments. We performed a relative measurement of scintillation quenching in the MeV energy region using radioactive isotopes ($^{222}$Rn, $^{218}$Po and $^{214}$Po isotopes) present in trace amounts in the DEAP-3600 detector and quantified the uncertainty of extrapolating the quenching factor to the low-energy region., Comment: 9 pages, 6 figures (added 1 figure, revised 3 figures), 2 tables, revised sections 3, 4, 5. Accepted in Eur. Phys. J. C

Published
2024

3. Precision Measurement of the Specific Activity of $^{39}$Ar in Atmospheric Argon with the DEAP-3600 Detector

Author

Adhikari, P., Ajaj, R., Alpízar-Venegas, M., Amaudruz, P. -A., Anstey, J., Araujo, G. R., Auty, D. J., Baldwin, M., Batygov, M., Beltran, B., Benmansour, H., Bina, C. E., Bonatt, J., Bonivento, W., Boulay, M. G., Broerman, B., Bueno, J. F., Burghardt, P. M., Butcher, A., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, M., Chen, Y., Choudhary, S., Cleveland, B. T., Corning, J. M., Crampton, R., Cranshaw, D., Daughtery, S., DelGobbo, P., Dering, K., Di Stefano, P., DiGioseffo, J., Dolganov, G., Doria, L., Duncan, F. A., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Florian, S., Flower, A., Ford, R. J., Gagnon, R., Gallacher, D., Abia, P. García, Garg, S., Giampa, P., Giménez-Alcázar, A., Goeldi, D., Golovko, V. V., Gorel, P., Graham, K., Grant, D. R., Grobov, A., Hallin, A. L., Hamstra, M., Harvey, P. J., Haskins, S., Hearns, C., Hu, J., Hucker, J., Hugues, T., Ilyasov, A., Jigmeddorj, B., Jillings, C. J., Joy, A., Kamaev, O., Kaur, G., Kemp, A., Kuźniak, M., La Zia, F., Lai, M., Langrock, S., Lehnert, B., Leonhardt, A., LePage-Bourbonnais, J., Levashko, N., Lidgard, J., Lindner, T., Lissia, M., Lock, J., Machulin, I., Majewski, P., Maru, A., Mason, J., McDonald, A. B., McElroy, T., McGinn, T., McLaughlin, J. B., Mehdiyev, R., Mielnichuk, C., Mirasola, L., Monroe, J., Nadeau, P., Nantais, C., Ng, C., Noble, A. J., O'Dwyer, E., Oliviéro, G., Ouellet, C., Pal, S., Papi, D., Pasuthip, P., Peeters, S. J. M., Perry, M., Pesudo, V., Picciau, E., Piro, M. -C., Pollmann, T. R., Rad, F., Rand, E. T., Rethmeier, C., Retière, F., García, I. Rodríguez, Roszkowski, L., Ruhland, J. B., Santorelli, R., Schuckman II, F. G., Seeburn, N., Seth, S., Shalamova, V., Singhrao, K., Skensved, P., Smith, N. J. T., Smith, B., Sobotkiewich, K., Sonley, T., Sosiak, J., Soukup, J., Stainforth, R., Stone, C., Strickland, V., Stringer, M., Sur, B., Tang, J., Vázquez-Jáuregui, E., Veloce, L., Viel, S., Vyas, B., Walczak, M., Walding, J., Ward, M., Westerdale, S., Willis, J., and Zuñiga-Reyes, A.

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

The specific activity of the beta decay of $^{39}$Ar in atmospheric argon is measured using the DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total of (3269 $\pm$ 24) kg of liquid argon distilled from the atmosphere to search for dark matter. This detector with very low background uses pulseshape discrimination to differentiate between nuclear recoils and electron recoils and is well-suited to measure the decay of $^{39}$Ar. With 167 live-days of data, the measured specific activity at the time of atmospheric extraction is [0.964 $\pm$ 0.001 (stat) $\pm$ 0.024 (sys)] Bq/kg$_{\rm atmAr}$ which is consistent with results from other experiments. A cross-check analysis using different event selection criteria provides a consistent result.

Published
2023
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4. Measurement of double-$\beta$ decay of $^{150}$Nd to the 0$^+_1$ excited state of $^{150}$Sm in NEMO-3

Author

Collaboration, NEMO-3, Aguerre, X., Arnold, R., Augier, C., Barabash, A. S., Basharina-Freshville, A., Blondel, S., Blot, S., Bongrand, M., Breier, R., Brudanin, V., Busto, J., Bystryakov, A., Caffrey, A. J., Cerna, C., Cesar, J. P., Ceschia, M., Chauveau, E., Chopra, A., Dawson, L., Duchesneau, D., Durand, D., Evans, J. J., Flack, R., Franchini, P., Garrido, X., Girard-Carillo, C., Guillon, B., Guzowski, P., Hoballah, M., Hodák, R., Hubert, P., Hussain, M. H., Jullian, S., Klimentko, A., Kochetov, O., Konovalov, S. I., Koňařík, F., Křižák, T., Lalanne, D., Lang, K., Lemière, Y., Li, P., Loaiza, P., Lutter, G., Macko, M., Mamedov, F., Marquet, C., Mauger, F., Minotti, A., Morgan, B., Nemchenok, I., Nomachi, M., Nowacki, F., Ohsumi, H., Oliviéro, G., Palušová, V., Patrick, C., Perrot, F., Petro, M., Pin, A., Piquemal, F., Povinec, P., Pratt, S., Přidal, P., Quinn, W. S., Ramachers, Y. A., Remoto, A., Reyss, J. L., Riddle, C. L., Rukhadze, E., Saakyan, R., Salamatin, A., Salazar, R., Sarazin, X., Sedgbeer, J., Shitov, Yu., Simard, L., Šimkovic, F., Smetana, A., Smolnikov, A., Söldner-Rembold, S., Štekl, I., Suhonen, J., Szklarz, G., Tedjditi, H., Thomas, J., Timkin, V., Tretyak, V. I., Umatov, V. I., Vanushin, I., Vereshchaka, Y., Vorobel, V., Waters, D., and Xie, F.

Subjects
Nuclear Experiment
Abstract

The NEMO-3 results for the double-$\beta$ decay of $^{150}$Nd to the 0$^+_1$ and 2$^+_1$ excited states of $^{150}$Sm are reported. The data recorded during 5.25 yr with 36.6 g of the isotope $^{150}$Nd are used in the analysis. For the first time, the signal of the $2\nu\beta\beta$ transition to the 0$^+_1$ excited state is detected with a statistical significance exceeding 5$\sigma$. The half-life is measured to be $T_{1/2}^{2\nu\beta\beta}(0^+_1) = \left[ 1.11 ^{+0.19}_{-0.14} \,\left(\mbox{stat}\right) ^{+0.17}_{-0.15}\, \left(\mbox{syst}\right) \right] \times10^{20}\,\mbox{yr}$. The limits are set on the $2\nu\beta\beta$ decay to the 2$^+_1$ level and on the $0\nu\beta\beta$ decay to the 0$^+_1$ and 2$^+_1$ levels of $^{150}$Sm., Comment: Minor corrections

Published
2022

5. First direct detection constraints on Planck-scale mass dark matter with multiple-scatter signatures using the DEAP-3600 detector

Author

Adhikari, P., Ajaj, R., Alpízar-Venegas, M., Auty, D. J., Benmansour, H., Bina, C. E., Bonivento, W., Boulay, M. G., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, Y., Cleveland, B. T., Corning, J. M., Daugherty, S., DelGobbo, P., Di Stefano, P., Doria, L., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Gallacher, D., Abia, P. García, Garg, S., Giampa, P., Goeldi, D., Gorel, P., Graham, K., Grobov, A., Hallin, A. L., Hamstra, M., Hugues, T., Ilyasov, A., Joy, A., Jigmeddorj, B., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I., Ku{ź}niak, M., Lai, M., Langrock, S., Lehnert, B., Leonhardt, A., Levashko, N., Li, X., Lissia, M., Litvinov, O., Lock, J., Longo, G., Machulin, I., McDonald, A. B., McElroy, T., McLaughlin, J. B., Mielnichuk, C., Mirasola, L., Monroe, J., Oliviéro, G., Pal, S., Peeters, S. J. M., Perry, M., Pesudo, V., Picciau, E., Piro, M. -C., Pollmann, T. R., Raj, N., Rand, E. T., Rethmeier, C., Retière, F., Rodríguez-García, I., Roszkowski, L., Ruhland, J. B., García, E. Sanchez, Sánchez-Pastor, T., Santorelli, R., Seth, S., Sinclair, D., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Stainforth, R., Stringer, M., Sur, B., Vázquez-Jáuregui, E., Viel, S., Walding, J., Waqar, M., Ward, M., Westerdale, S., Willis, J., and Zuñiga-Reyes, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

Dark matter particles with Planck-scale mass ($\simeq10^{19}\text{GeV}/c^2$) arise in well-motivated theories and could be produced by several cosmological mechanisms. Using a blind analysis of data collected over a 813 d live time with DEAP-3600, a 3.3 t single-phase liquid argon-based dark matter experiment at SNOLAB, a search for supermassive dark matter was performed, looking for multiple-scatter signals. No candidate signal events were observed, leading to the first direct detection constraints on Planck-scale mass dark matter. Leading limits constrain dark matter masses between $8.3\times10^{6}$ and $1.2\times10^{19} \text{GeV}/c^2$, and cross sections for scattering on $^{40}$Ar between $1.0\times10^{-23}$ and $2.4\times10^{-18} \text{cm}^2$. These are used to constrain two composite dark matter models.

Published
2021
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6. Measurement of the distribution of $^{207}$Bi depositions on calibration sources for SuperNEMO

Author

Arnold, R., Augier, C., Barabash, A. S., Basharina-Freshville, A., Birdsall, E., Blondel, S., Bongrand, M., Boursette, D., Breier, R., Brudanin, V., Busto, J., Calvez, S., Cerna, C., Cesar, J. P., Ceschia, M., Chapon, A., Chauveau, E., Chopra, A., Dawson, L., De Capua, S., Duchesneau, D., Durand, D., Eurin, G., Evans, J. J., Filosofov, D., Flack, R., Franchini, P., Girard-Carillo, C., Gómez, H., Guillon, B., Guzowski, P., Hoballah, M., Hodák, R., Hussain, M. H., Jeremie, A., Jullian, S., Kaizer, J., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lang, K., Lemière, Y., Noblet, T. Le, Liptak, Z., Liu, X. R., Loaiza, P., Macko, M., Macolino, C., Marquet, C., Mauger, F., Minotti, A., Mora, Y., Morgan, B., Mott, J., Nemchenok, I., Nomachi, M., Nova, F., Nowacki, F., Ohsumi, H., Oliviéro, G., Pahlka, R. B., Palušová, V., Patrick, C., Perrot, F., Pin, A., Piquemal, F., Povinec, P., Proga, M., Quinn, W. S., Ramachers, Y. A., Remoto, A., Reyss, J. L., Saakyan, R., Salamatin, A., Salazar, R., Sarazin, X., Sedgbeer, J., Shitov, Yu., Simard, L., Šimkovic, F., Smolnikov, A., Söldner-Rembold, S., Štekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Tedjditi, H., Thomas, J., Timkin, V., Torre, S., Tretyak, Vl. I., Tretyak, V. I., Umatov, V. I., Vilela, C., Vorobel, V., Waters, D., Xie, F., and Žemlička, J.

Subjects
Physics - Instrumentation and Detectors
Abstract

The SuperNEMO experiment will search for neutrinoless double-beta decay ($0\nu\beta\beta$), and study the Standard-Model double-beta decay process ($2\nu\beta\beta$). The SuperNEMO technology can measure the energy of each of the electrons produced in a double-beta ($\beta\beta$) decay, and can reconstruct the topology of their individual tracks. The study of the double-beta decay spectrum requires very accurate energy calibration to be carried out periodically. The SuperNEMO Demonstrator Module will be calibrated using 42 calibration sources, each consisting of a droplet of $^{207}$Bi within a frame assembly. The quality of these sources, which depends upon the entire $^{207}$Bi droplet being contained within the frame, is key for correctly calibrating SuperNEMO's energy response. In this paper, we present a novel method for precisely measuring the exact geometry of the deposition of $^{207}$Bi droplets within the frames, using Timepix pixel detectors. We studied 49 different sources and selected 42 high-quality sources with the most central source positioning., Comment: 16 pages, 12 figures, submitted to JINST, response to reviewer comments

Published
2021
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7. Pulseshape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data

Author

The DEAP Collaboration, Adhikari, P., Ajaj, R., Alpízar-Venegas, M., Amaudruz, P. -A., Auty, D. J., Batygov, M., Beltran, B., Benmansour, H., Bina, C. E., Bonatt, J., Bonivento, W., Boulay, M. G., Broerman, B., Bueno, J. F., Burghardt, P. M., Butcher, A., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, M., Chen, Y., Cleveland, B. T., Corning, J. M., Cranshaw, D., Daugherty, S., DelGobbo, P., Dering, K., DiGioseffo, J., Di Stefano, P., Doria, L., Duncan, F. A., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Florian, S., Flower, T., Ford, R. J., Gagnon, R., Gallacher, D., Abia, P. García, Garg, S., Giampa, P., Goeldi, D., Golovko, V., Gorel, P., Graham, K., Grant, D. R., Grobov, A., Hallin, A. L., Hamstra, M., Harvey, P. J., Hearns, C., Hugues, T., Ilyasov, A., Joy, A., Jigmeddorj, B., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I., Kuźniak, M., Lai, M., Langrock, S., Lehnert, B., Leonhardt, A., Levashko, N., Li, X., Lidgard, J., Lindner, T., Lissia, M., Lock, J., Longo, G., Machulin, I., McDonald, A. B., McElroy, T., McGinn, T., McLaughlin, J. B., Mehdiyev, R., Mielnichuk, C., Monroe, J., Nadeau, P., Nantais, C., Ng, C., Noble, A. J., O'Dwyer, E., Oliviéro, G., Ouellet, C., Pal, S., Pasuthip, P., Peeters, S. J. M., Perry, M., Pesudo, V., Picciau, E., Piro, M. -C., Pollmann, T. R., Rand, E. T., Rethmeier, C., Retière, F., Rodríguez-García, I., Roszkowski, L., Ruhland, J. B., Sánchez-García, E., Santorelli, R., Sinclair, D., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Soukup, J., Stainforth, R., Stone, C., Strickland, V., Stringer, M., Sur, B., Tang, J., Vázquez-Jáuregui, E., Viel, S., Walding, J., Waqar, M., Ward, M., Westerdale, S., Willis, J., and Zuñiga-Reyes, A.

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

The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from $^{39}$Ar beta decays and is suppressed using pulseshape discrimination (PSD). We use two types of PSD algorithm: the prompt-fraction, which considers the fraction of the scintillation signal in a narrow and a wide time window around the event peak, and the log-likelihood-ratio, which compares the observed photon arrival times to a signal and a background model. We furthermore use two algorithms to determine the number of photons detected at a given time: (1) simply dividing the charge of each PMT pulse by the charge of a single photoelectron, and (2) a likelihood analysis that considers the probability to detect a certain number of photons at a given time, based on a model for the scintillation pulseshape and for afterpulsing in the light detectors. The prompt-fraction performs approximately as well as the log-likelihood-ratio PSD algorithm if the photon detection times are not biased by detector effects. We explain this result using a model for the information carried by scintillation photons as a function of the time when they are detected., Comment: 14 pages, 9 figures

Published
2021
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8. Search for Periodic Modulations of the Rate of Double-Beta Decay of $^{100}$Mo in the NEMO-3 Detector

Author

Collaboration, NEMO-3, Arnold, R., Augier, C., Barabash, A. S., Basharina-Freshville, A., Blondel, S., Blot, S., Bongrand, M., Boursette, D., Breier, R., Brudanin, V., Busto, J., Caffrey, A. J., Calvez, S., Cerna, C., Cesar, J. P., Ceschia, M., Chapon, A., Chauveau, E., Chopra, A., Dawson, L., Duchesneau, D., Durand, D., Eurin, G., Evans, J. J., Fajt, L., Filosofov, D., Flack, R., Franchini, P., Garrido, X., Girard-Carillo, C., Gómez, H., Guillon, B., Guzowski, P., Hodák, R., Huber, A., Hubert, P., Hugon, C., Hussain, M. H., Jullian, S., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lang, K., Lemière, Y., Noblet, T. Le, Liptak, Z., Liu, X. R., Loaiza, P., Lutter, G., Macko, M., Macolino, C., Mamedov, F., Marquet, C., Mauger, F., Minotti, A., Morgan, B., Mott, J., Nemchenok, I., Nomachi, M., Nova, F., Nowacki, F., Ohsumi, H., Oliviéro, G., Pahlka, R. B., Palusova, V., Patrick, C., Perrot, F., Pin, A., Piquemal, F., Povinec, P., Přidal, P., Quinn, W. S., Ramachers, Y. A., Remoto, A., Reyss, J. L., Riddle, C. L., Rukhadze, E., Saakyan, R., Salamatin, A., Salazar, R., Sarazin, X., Sedgbeer, J., Shitov, Yu., Simard, L., Šimkovic, F., Smetana, A., Smolnikov, A., Söldner-Rembold, S., Soulé, B., Štekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Tedjditi, H., Thomas, J., Timkin, V., Torre, S., Tretyak, Vl. I., Tretyak, V. I., Umatov, V. I., Vanushin, I., Vilela, C., Vorobel, V., Waters, D., and Xie, F.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Double-beta decays of $^{100}$Mo from the 6.0195-year exposure of a 6.914 kg high-purity sample were recorded by the NEMO-3 experiment that searched for neutrinoless double-beta decays. These ultra-rare transitions to $^{100}$Ru have a half-life of approximately $7\times10^{18}$ years, and have been used to conduct the first ever search for periodic variations of this decay mode. The Lomb-Scargle periodogram technique, and its error-weighted extension, were employed to look for periodic modulations of the half-life. Monte Carlo modeling was used to study the modulation sensitivity of the data over a broad range of amplitudes and frequencies. Data show no evidence of modulations with amplitude greater than 2.5% in the frequency range of $0.33225\,{\rm y^{-1}}$ to $365.25\,{\rm y^{-1}}$.

Published
2020

9. Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector

Author

Adhikari, P., Ajaj, R., Bina, C. E., Bonivento, W., Boulay, M. G., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, Y., Cleveland, B. T., Corning, J. M., Daugherty, S., DelGobbo, P., Di Stefano, P., Doria, L., Dunford, M., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Gallacher, D., Garcés, E. A., Abia, P. García, Garg, S., Giampa, P., Goeldi, D., Gorel, P., Graham, K., Grobov, A., Hallin, A. L., Hamstra, M., Hugues, T., Ilyasov, A., Joy, A., Jigmeddorj, B., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I., Kuźniak, M., Lai, M., Langrock, S., Lehnert, B., Levashko, N., Li, X., Litvinov, O., Lock, J., Longo, G., Machulin, I., McDonald, A. B., McElroy, T., McLaughlin, J. B., Mielnichuk, C., Monroe, J., Oliviéro, G., Pal, S., Peeters, S. J. M., Pesudo, V., Piro, M. -C., Pollmann, T. R., Rand, E. T., Rethmeier, C., Retière, F., Roszkowski, L., García, E. Sanchez, Sánchez-Pastor, T., Santorelli, R., Sinclair, D., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Stainforth, R., Stringer, M., Sur, B., Vázquez-Jáuregui, E., Viel, S., Vincent, A. C., Walding, J., Waqar, M., Westerdale, S., and Zuñiga-Reyes, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

DEAP-3600 is a single-phase liquid argon detector aiming to directly detect Weakly Interacting Massive Particles (WIMPs), located at SNOLAB (Sudbury, Canada). After analyzing data taken during the first year of operation, a null result was used to place an upper bound on the WIMP-nucleon spin-independent, isoscalar cross section. This study reinterprets this result within a Non-Relativistic Effective Field Theory framework, and further examines how various possible substructures in the local dark matter halo may affect these constraints. Such substructures are hinted at by kinematic structures in the local stellar distribution observed by the Gaia satellite and other recent astronomical surveys. These include the Gaia Sausage (or Enceladus), as well as a number of distinct streams identified in recent studies. Limits are presented for the coupling strength of the effective contact interaction operators $\mathcal{O}_1$, $\mathcal{O}_3$, $\mathcal{O}_5$, $\mathcal{O}_8$, and $\mathcal{O}_{11}$, considering isoscalar, isovector, and xenonphobic scenarios, as well as the specific operators corresponding to millicharge, magnetic dipole, electric dipole, and anapole interactions. The effects of halo substructures on each of these operators are explored as well, showing that the $\mathcal{O}_5$ and $\mathcal{O}_8$ operators are particularly sensitive to the velocity distribution, even at dark matter masses above 100 GeV/$c^2$.

Published
2020
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11. The liquid-argon scintillation pulseshape in DEAP-3600

Author

The DEAP collaboration, Adhikari, P., Ajaj, R., Batygov, G. R. Araujoand M., Beltran, B., Bina, C. E., Boulay, M. G., Broerman, B., Bueno, J. F., Butcher, A., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, Y., Cleveland, B. T., Corning, J. M., Dering, S. J. Daughertyand K., Doria, L., Dunford, F. A. Duncan andM., Erlandson, A., Fatemighomi, N., Fiorillo, G., Flower, A., Ford, R. J., Gagnon, R., Gallacher, D., Garcés, E. A., Abia, P. García, Garg, S., Giampa, P., Goeldi, D., Golovko, V. V., Gorel, P., Graham, K., Grant, D. R., Grobov, A., Hallin, A. L., Hamstra, M., Harvey, P. J., Hearns, C., Ilyasov, A., Joy, A., Jillings, C. J., Kamaev, O., Kaur, G., Kemp, A., Kochanek, I., Kuźniak, M., Langrock, S., La Zia, F., Lehnert, B., Levashko, N., Li, X., Litvinov, O., Lock, J., Longo, G., Machulin, I., Majewski, P., McDonald, A. B., McElroy, T., McGinn, T., McLaughlin, J. B., Mehdiyev, R., Mielnichuk, C., Monroe, J., Nadeau, P., Nantais, C., Ng, C., Noble, A. J., Oliviéro, G., Ouellet, C., Pal, S., Pasuthip, P., Peeters, S. J. M., Pesudo, V., Piro, M. -C., Pollmann, T. R., Rand, E. T., Rethmeier, C., Retière, F., García, E. Sanchez, Sánchez-Pastor, T., Santorelli, R., Seeburn, N., Skensved, P., Smith, B., Smith, N. J. T., Sonley, T., Stainforth, R., Stone, C., Strickland, V., Sur, B., Vázquez-Jáuregui, E., Veloce, L., Viel, S., Walding, J., Waqar, M., Ward, M., Westerdale, S., Willis, J., and Zuñiga-Reyes, A.

Subjects
Physics - Instrumentation and Detectors
Abstract

DEAP-3600 is a liquid-argon scintillation detector looking for dark matter. Scintillation events in the liquid argon (LAr) are registered by 255 photomultiplier tubes (PMTs), and pulseshape discrimination (PSD) is used to suppress electromagnetic background events. The excellent PSD performance of LAr makes it a viable target for dark matter searches, and the LAr scintillation pulseshape discussed here is the basis of PSD. The observed pulseshape is a combination of LAr scintillation physics with detector effects. We present a model for the pulseshape of electromagnetic background events in the energy region of interest for dark matter searches. The model is composed of a) LAr scintillation physics, including the so-called intermediate component, b) the time response of the TPB wavelength shifter, including delayed TPB emission at $\mathcal O$(ms) time-scales, and c) PMT response. TPB is the wavelength shifter of choice in most LAr detectors. We find that approximately 10\% of the intensity of the wavelength-shifted light is in a long-lived state of TPB. This causes light from an event to spill into subsequent events to an extent not usually accounted for in the design and data analysis of LAr-based detectors.

Published
2020
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12. Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3

Author

Arnold, The NEMO-3 collaboration R., Augier, C., Barabash, A. S., Basharina-Freshville, A., Blondel, S., Blot, S., Bongrand, M., Boursette, D., Breier, R., Brudanin, V., Busto, J., Caffrey, A. J., Calvez, S., Cascella, M., Cerna, C., Cesar, J. P., Chapon, A., Chauveau, E., Chopra, A., Dawson, L., Duchesneau, D., Durand, D., Egorov, V., Eurin, G., Evans, J. J., Fajt, L., Filosofov, D., Flack, R., Garrido, X., Girard-Carillo, C., Gómez, H., Guillon, B., Guzowski, P., Hodak, R., Huber, A., Hubert, P., Hugon, C., Jullian, S., Klimenko, A., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lang, K., Lemière, Y., Noblet, T. Le, Liptak, Z., Liu, X. R., Loaiza, P., Lutter, G., Macko, M., Macolino, C., Mamedov, F., Marquet, C., Mauger, F., Minotti, A., Morgan, B., Mott, J., Nemchenok, I., Nomachi, M., Nova, F., Nowacki, F., Ohsumi, H., Oliviéro, G., Pahlka, R. B., Palusova, V., Patrick, C., Perrot, F., Pin, A., Piquemal, F., Povinec, P., Přidal, P., Ramachers, Y. A., Remoto, A., Reyss, J. L., Richards, B., Riddle, C. L., Rukhadze, E., Saakyan, R., Salazar, R., Sarazin, X., Sedgbeer, J., Shitov, Yu., Simard, L., Simkovic, F., Smetana, A., Smolek, K., Smolnikov, A., Söldner-Rembold, S., Soulé, B., Štekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Tedjditi, H., Thomas, J., Timkin, V., Torre, S., Tretyak, Vl. I., Tretyak, V. I., Umatov, V. I., Vanushin, I., Vilela, C., Vorobela, V., Waters, D., Xie, F., and Žukauskas, A.

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

The double-beta decay of 82Se to the 0+1 excited state of 82Kr has been studied with the NEMO-3 detector using 0.93 kg of enriched 82Se measured for 4.75 y, corresponding to an exposure of 4.42 kg y. A dedicated analysis to reconstruct the gamma-rays has been performed to search for events in the 2e2g channel. No evidence of a 2nbb decay to the 0+1 state has been observed and a limit of T2n 1/2(82Se; 0+gs -> 0+1) > 1.3 1021 y at 90% CL has been set. Concerning the 0nbb decay to the 0+1 state, a limit for this decay has been obtained with T0n 1/2(82Se; 0+g s -> 0+1) > 2.3 1022 y at 90% CL, independently from the 2nbb decay process. These results are obtained for the first time with a tracko-calo detector, reconstructing every particle in the final state.

Published
2020
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13. Detailed studies of $^{100}$Mo two-neutrino double beta decay in NEMO-3

Author

Collaboration, NEMO-3, Arnold, R., Augier, C., Barabash, A. S., Basharina-Freshville, A., Blondel, S., Blot, S., Bongrand, M., Boursette, D., Brudanin, V., Busto, J., Caffrey, A. J., Calvez, S., Cascella, M., Cerna, C., Cesar, J. P., Chapon, A., Chauveau, E., Chopra, A., Dawson, L., Duchesneau, D., Durand, D., Dvornický, R., Egorov, V., Eurin, G., Evans, J. J., Fajt, L., Filosofov, D., Flack, R., Garrido, X., Girard-Carillo, C., Gómez, H., Guillon, B., Guzowski, P., Hodák, R., Huber, A., Hubert, P., Hugon, C., Jullian, S., Kochetov, O., Konovalov, S. I., Kovalenko, V., Lalanne, D., Lang, K., Lemière, Y., Noblet, T. Le, Liptak, Z., Liu, X. R., Loaiza, P., Lutter, G., Macko, M., Macolino, C., Mamedov, F., Marquet, C., Mauger, F., Minotti, A., Morgan, B., Mott, J., Nemchenok, I., Nomachi, M., Nova, F., Nowacki, F., Ohsumi, H., Oliviéro, G., Pahlka, R. B., Patrick, C., Perrot, F., Pin, A., Piquemal, F., Povinec, P., Přidal, P., Ramachers, Y. A., Remoto, A., Reyss, J. L., Riddle, C. L., Rukhadze, E., Saakyan, R., Salamatin, A., Salazar, R., Sarazin, X., Sedgbeer, J., Shitov, Yu., Simard, L., Šimkovic, F., Smetana, A., Smolek, K., Smolnikov, A., Söldner-Rembold, S., Soulé, B., Štekl, I., Suhonen, J., Sutton, C. S., Szklarz, G., Tedjditi, H., Thomas, J., Timkin, V., Torre, S., Tretyak, Vl. I., Tretyak, V. I., Umatov, V. I., Vanushin, I., Vilela, C., Vorobel, V., Waters, D., Xie, F., and Žukauskas, A.

Subjects
Nuclear Experiment
Abstract

The full data set of the NEMO-3 experiment has been used to measure the half-life of the two-neutrino double beta decay of $^{100}$Mo to the ground state of $^{100}$Ru, $T_{1/2} = \left[ 6.81 \pm 0.01\,\left(\mbox{stat}\right) ^{+0.38}_{-0.40}\,\left(\mbox{syst}\right) \right] \times10^{18}$ y. The two-electron energy sum, single electron energy spectra and distribution of the angle between the electrons are presented with an unprecedented statistics of $5\times10^5$ events and a signal-to-background ratio of ~80. Clear evidence for the Single State Dominance model is found for this nuclear transition. Limits on Majoron emitting neutrinoless double beta decay modes with spectral indices of n=2,3,7, as well as constraints on Lorentz invariance violation and on the bosonic neutrino contribution to the two-neutrino double beta decay mode are obtained., Comment: 11 pages, 9 figures

Published
2019
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15. Thermo-mechanical behavior of surface acoustic waves in ordered arrays of nanodisks studied by near infrared pump-probe diffraction experiments

Author

Giannetti, C., Revaz, B., Banfi, F., Montagnese, M., Ferrini, G., Cilento, F., Maccalli, S., Vavassori, P., Oliviero, G., Bontempi, E., Depero, L. E., Metlushko, V., and Parmigiani, F.

Subjects
Condensed Matter - Materials Science
Abstract

The ultrafast thermal and mechanical dynamics of a two-dimensional lattice of metallic nano-disks has been studied by near infrared pump-probe diffraction measurements, over a temporal range spanning from 100 fs to several nanoseconds. The experiments demonstrate that, in these systems, a two-dimensional surface acoustic wave (2DSAW), with a wavevector given by the reciprocal periodicity of the array, can be excited by ~120 fs Ti:sapphire laser pulses. In order to clarify the interaction between the nanodisks and the substrate, numerical calculations of the elastic eigenmodes and simulations of the thermodynamics of the system are developed through finite-element analysis. At this light, we unambiguously show that the observed 2DSAW velocity shift originates from the mechanical interaction between the 2DSAWs and the nano-disks, while the correlated 2DSAW damping is due to the energy radiation into the substrate., Comment: 13 pages, 10 figures

Published
2007
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16. The BiPo-3 detector

Author

Loaiza, P., Barabash, A.S., Basharina-Freshville, A., Birdsall, E., Blondel, S., Blot, S., Bongrand, M., Boursette, D., Brudanin, V., Busto, J., Caffrey, A.J., Calvez, S., Cascella, M., Cerna, C., Chauveau, E., Chopra, A., Capua, S. De, Duchesneau, D., Durand, D., Egorov, V., Eurin, G., Evans, J.J., Fajt, L., Filosofov, D., Flack, R., Garrido, X., Gómez, H., Guillon, B., Guzowski, P., Holý, K., Hodák, R., Huber, A., Hugon, C., Jeremie, A., Jullian, S., Kauer, M., Klimenko, A., Kochetov, O., Konovalov, S.I., Kovalenko, V., Lang, K., Lemière, Y., Noblet, T. Le, Liptak, Z., Liu, X.R., Lutter, G., Macko, M., Mamedov, F., Marquet, C., Mauger, F., Morgan, B., Mott, J., Nemchenok, I., Nomachi, M., Nova, F., Ohsumi, H., Oliviéro, G., Pahlka, R.B., Pater, J., Perrot, F., Piquemal, F., Povinec, P., Přidal, P., Ramachers, Y.A., Remoto, A., Richards, B., Riddle, C.L., Rukhadze, E., Saakyan, R., Sarazin, X., Shitov, Yu., Simard, L., Šimkovic, F., Smetana, A., Smolek, K., Smolnikov, A., Söldner-Rembold, S., Soulé, B., Štekl, I., Thomas, J., Timkin, V., Torre, S., Tretyak, Vl.I., Tretyak, V.I., Umatov, V.I., Vilela, C., Vorobel, V., Waters, D., and Žukauskas, A.

Published
2017
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20. Two biomarker-directed randomized trials in European and Chinese patients with nonsmall-cell lung cancer: the BRCA1-RAP80 Expression Customization (BREC) studies

Author

Moran, T., Wei, J., Cobo, M., Qian, X., Domine, M., Zou, Z., Bover, I., Wang, L., Provencio, M., Yu, L., Chaib, I., You, C., Massuti, B., Song, Y., Vergnenegre, A., Lu, H., Lopez-Vivanco, G., Hu, W., Robinet, G., Yan, J., Insa, A., Xu, X., Majem, M., Chen, X., de las Peñas, R., Karachaliou, N., Sala, M.A., Wu, Q., Isla, D., Zhou, Y., Baize, N., Zhang, F., Garde, J., Germonpre, P., Rauh, S., ALHusaini, H., Sanchez-Ronco, M., Drozdowskyj, A., Sanchez, J.J., Camps, C., Liu, B., Rosell, R., Colinet, B., De Grève, J., Germonpré, P., Chen, H., Du, J., Gao, Y., Hu, J., Kong, W., Li, L., Li, R., Li, X., Liu, J., Ren, W., Wen, L., Xiao, X., Yang, J., Yang, M., Yang, Y., Yin, J., Yue, X., Zhang, J., Zhu, L., Bombaron, P., Chouaid, C., Dansin, E., Fournel, P., Fraboulet, G., Gervais, R., Hominal, S., Kahlout, S., Lecaer, H., Lena, H., LeTreut, J., Locher, C., Molinier, O., Monnet, I., Oliviero, G., Schoot, R., Thomas, P., Vergnènegre, A., Berchem, G., Al Husaini, H., Aparisi, F., Arriola, E., Ballesteros, I., Barneto, I., Bernabé, R., Blasco, A., Bosch-Barrera, J., Calvo de Juan, V., Carcereny, E., Catot, S., De las Peñas, R., Dómine, M., Felip, E., García-Campelo, M.R., García-Girón, C., García-Gómez, R., Garcia-Sevila, R., Gasco, A., Gil, J., González-Larriba, J.L., Hernando-Polo, S., Jantus, E., Jiménez, B., Lianes, P., López-López, R., López-Martín, A., López-Vivanco, G., Macias, J.A., Marti-Ciriquian, J.L., Montoyo, R., Morales-Espinosa, D., Morán, T., Moreno, M.A., Pallares, C., Parera, M., Pérez-Carrión, R., Porta, R., Reguart, N., Rosillo, F., Sanchez, J.M., Sullivan, I., Terrasa, J., Trigo, J.M., Valdivia, J., Viñolas, N., Viteri, S., Botia-Castillo, M., Mate, J.L., Perez-Cano, M., Ramirez, J.L., Sanchez-Rodriguez, B., Taron, M., Tierno-Garcia, M., Mijangos, E., Ocaña, J., Pereira, E., Shao, J., Sun, X., and O'Brate, R.

Published
2014
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23. Search for periodic modulations of the rate of double- β decay of Mo 100 in the NEMO-3 detector

Author

Arnold R., Augier C., Barabash A. S., Basharina-Freshville A., Blondel S., Blot S., Bongrand M., Boursette D., Breier R., Brudanin V., Busto J., Caffrey A. J., Calvez S., Cerna C., Cesar J. P., Ceschia M., Chapon A., Chauveau E., Chopra A., Dawson L., Duchesneau D., Durand D., Eurin G., Evans J. J., Fajt L., Filosofov D., Flack R., Franchini P., Garrido X., Girard-Carillo C., Gomez H., Guillon B., Guzowski P., Hodak R., Huber A., Hubert P., Hugon C., Hussain M. H., Jullian S., Klimenko A., Kochetov O., Konovalov S. I., Kovalenko V., Lalanne D., Lang K., Lemiere Y., Le Noblet T., Liptak Z., Liu X. R., Loaiza P., Lutter G., Macko M., Macolino C., Mamedov F., Marquet C., Mauger F., Minotti A., Morgan B., Mott J., Nemchenok I., Nomachi M., Nova F., Nowacki F., Ohsumi H., Oliviero G., Pahlka R. B., Palusova V., Patrick C., Perrot F., Pin A., Piquemal F., Povinec P., Pridal P., Quinn W. S., Ramachers Y. A., Remoto A., Reyss J. L., Riddle C. L., Rukhadze E., Saakyan R., Salamatin A., Salazar R., Sarazin X., Sedgbeer J., Shitov Y., Simard L., Simkovic F., Smetana A., Smolnikov A., Soldner-Rembold S., Soule B., Stekl I., Suhonen J., Sutton C. S., Szklarz G., Tedjditi H., Thomas J., Timkin V., Torre S., Tretyak V. I., Umatov V. I., Vanushin I., Vilela C., Vorobel V., Waters D., Xie F., Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Blondel, S, Blot, S, Bongrand, M, Boursette, D, Breier, R, Brudanin, V, Busto, J, Caffrey, A, Calvez, S, Cerna, C, Cesar, J, Ceschia, M, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, Duchesneau, D, Durand, D, Eurin, G, Evans, J, Fajt, L, Filosofov, D, Flack, R, Franchini, P, Garrido, X, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hodak, R, Huber, A, Hubert, P, Hugon, C, Hussain, M, Jullian, S, Klimenko, A, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Le Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Lutter, G, Macko, M, Macolino, C, Mamedov, F, Marquet, C, Mauger, F, Minotti, A, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Palusova, V, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Pridal, P, Quinn, W, Ramachers, Y, Remoto, A, Reyss, J, Riddle, C, Rukhadze, E, Saakyan, R, Salamatin, A, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smetana, A, Smolnikov, A, Soldner-Rembold, S, Soule, B, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vanushin, I, Vilela, C, Vorobel, V, Waters, D, and Xie, F

Subjects
Radioactivity, Decay Rate, Half-Life
Abstract

Double-beta decays of Mo100 from the 6.0195-year exposure of a 6.914 kg high-purity sample were recorded by the NEMO-3 experiment that searched for neutrinoless double-beta decays. These ultrarare transitions to Ru100 have a half-life of approximately 7×1018 years and have been used to conduct the first-ever search for periodic variations of this decay mode. The Lomb-Scargle periodogram technique, and its error-weighted extension, were employed to look for periodic modulations of the half-life. Data show no evidence at the 95% confidence level of modulations with amplitude greater than 2.5% in the frequency range of 0.33225yr-1 to 360yr-1.

Published
2021

24. Q-switched 1064 nm Nd-Yag nanosecond laser effects on skin barrier function and on molecular rejuvenation markers in keratinocyte-fibroblasts interaction

Author

De Filippis A, Perfetto B, Guerrera LP, Oliviero G, Baroni A, DE FILIPPIS, Anna, De Filippis, A, Perfetto, B, Guerrera, Lp, Oliviero, G, Baroni, A, and DE FILIPPIS, Anna

Subjects
Keratinocytes, Cell Survival, Photoaging, Human skin, Cell Communication, Lasers, Solid-State, Dermatology, Filaggrin Proteins, Cell Line, Proinflammatory cytokine, Skin Aging, 030207 dermatology & venereal diseases, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Rejuvenation, Skin, integumentary system, biology, Chemistry, Water, 030206 dentistry, Fibroblasts, medicine.disease, Cell biology, HaCaT, medicine.anatomical_structure, Gene Expression Regulation, biology.protein, Cytokines, Surgery, Inflammation Mediators, Keratinocyte, Elastin, Biomarkers, Filaggrin
Abstract

Skin represents an interface between internal and external environment; it protects human body by regulating the water loss and the maintenance of body temperature, defending against irritant and pathogen agents, and against physical, chemical, and UV damage. It provides to essential physiological functions, such as the important antioxidant defense capacity; its protective/defensive function is performed by a high number of proteins, and shows important functions in maintenance of skin barrier homeostasis. Keratinocytes and fibroblasts play a pivotal role to determine or prevent skin aging in response to intrinsic or extrinsic stimuli, modulating cytokines and several biochemical factors. Non-ablative technologies are playing an increasing role in the management of skin aging, inducing a dermal remodeling without a visible epidermal damage. The objective of this study was to evaluate the effect of Q-switched 1064 Nd-YAG laser (Medlite Conbio C6 Nd-YAG laser, Cynosure USA) in skin barrier function, analyzing the constituents which are strongly altered in aging skin. Particularly, we evaluated the expression of filaggrin, TGase, HSP70, and aquaporins, on HaCaT cells. The expression of proinflammatory cytokines has been investigated too. As a second step of the study, we analyzed the modulation of the rejuvenation molecular markers on human skin fibroblasts (HDFs) stimulated with keratinocytes conditioned medium (KCM). Our results demonstrated that Q-switched 1064 nm Nd:YAG laser acts on the skin barrier function, increasing the expression of aquaporins, filaggrin, TGase, and HSP70, modulating the proinflammatory cytokines. In fibroblasts stimulated with keratinocytes conditioned medium (KCM) and irradiated with Q-switched 1064 nm Nd:YAG laser, we can observe a reduction of MMP-1 and an increase in procollagen, collagen type I, and elastin. Our results highlight that Q-switched 1064 nm Nd:YAG laser treatment could represent an effective weapon to fight skin aging.

Published
2018
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27. Detailed studies of 100 Mo two-neutrino double beta decay in NEMO-3

Author

Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Blondel, S, Blot, S, Bongrand, M, Boursette, D, Brudanin, V, Busto, J, Caffrey, A, Calvez, S, Cascella, M, Cerna, C, Cesar, J, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, Duchesneau, D, Durand, D, Dvornicky, R, Egorov, V, Eurin, G, Evans, J, Fajt, L, Filosofov, D, Flack, R, Garrido, X, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hodak, R, Huber, A, Hubert, P, Hugon, C, Jullian, S, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Lutter, G, Macko, M, Macolino, C, Mamedov, F, Marquet, C, Mauger, F, Minotti, A, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Pridal, P, Ramachers, Y, Remoto, A, Reyss, J, Riddle, C, Rukhadze, E, Saakyan, R, Salamatin, A, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smetana, A, Smolek, K, Smolnikov, A, Soldner-Rembold, S, Soule, B, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vanushin, I, Vilela, C, Vorobel, V, Waters, D, Xie, F, Zukauskas, A, Arnold R., Augier C., Barabash A. S., Basharina-Freshville A., Blondel S., Blot S., Bongrand M., Boursette D., Brudanin V., Busto J., Caffrey A. J., Calvez S., Cascella M., Cerna C., Cesar J. P., Chapon A., Chauveau E., Chopra A., Dawson L., Duchesneau D., Durand D., Dvornicky R., Egorov V., Eurin G., Evans J. J., Fajt L., Filosofov D., Flack R., Garrido X., Girard-Carillo C., Gomez H., Guillon B., Guzowski P., Hodak R., Huber A., Hubert P., Hugon C., Jullian S., Kochetov O., Konovalov S. I., Kovalenko V., Lalanne D., Lang K., Lemiere Y., Noblet T. L., Liptak Z., Liu X. R., Loaiza P., Lutter G., Macko M., Macolino C., Mamedov F., Marquet C., Mauger F., Minotti A., Morgan B., Mott J., Nemchenok I., Nomachi M., Nova F., Nowacki F., Ohsumi H., Oliviero G., Pahlka R. B., Patrick C., Perrot F., Pin A., Piquemal F., Povinec P., Pridal P., Ramachers Y. A., Remoto A., Reyss J. L., Riddle C. L., Rukhadze E., Saakyan R., Salamatin A., Salazar R., Sarazin X., Sedgbeer J., Shitov Y., Simard L., Simkovic F., Smetana A., Smolek K., Smolnikov A., Soldner-Rembold S., Soule B., Stekl I., Suhonen J., Sutton C. S., Szklarz G., Tedjditi H., Thomas J., Timkin V., Torre S., Tretyak V. I., Umatov V. I., Vanushin I., Vilela C., Vorobel V., Waters D., Xie F., Zukauskas A., Arnold, R, Augier, C, Barabash, A, Basharina-Freshville, A, Blondel, S, Blot, S, Bongrand, M, Boursette, D, Brudanin, V, Busto, J, Caffrey, A, Calvez, S, Cascella, M, Cerna, C, Cesar, J, Chapon, A, Chauveau, E, Chopra, A, Dawson, L, Duchesneau, D, Durand, D, Dvornicky, R, Egorov, V, Eurin, G, Evans, J, Fajt, L, Filosofov, D, Flack, R, Garrido, X, Girard-Carillo, C, Gomez, H, Guillon, B, Guzowski, P, Hodak, R, Huber, A, Hubert, P, Hugon, C, Jullian, S, Kochetov, O, Konovalov, S, Kovalenko, V, Lalanne, D, Lang, K, Lemiere, Y, Noblet, T, Liptak, Z, Liu, X, Loaiza, P, Lutter, G, Macko, M, Macolino, C, Mamedov, F, Marquet, C, Mauger, F, Minotti, A, Morgan, B, Mott, J, Nemchenok, I, Nomachi, M, Nova, F, Nowacki, F, Ohsumi, H, Oliviero, G, Pahlka, R, Patrick, C, Perrot, F, Pin, A, Piquemal, F, Povinec, P, Pridal, P, Ramachers, Y, Remoto, A, Reyss, J, Riddle, C, Rukhadze, E, Saakyan, R, Salamatin, A, Salazar, R, Sarazin, X, Sedgbeer, J, Shitov, Y, Simard, L, Simkovic, F, Smetana, A, Smolek, K, Smolnikov, A, Soldner-Rembold, S, Soule, B, Stekl, I, Suhonen, J, Sutton, C, Szklarz, G, Tedjditi, H, Thomas, J, Timkin, V, Torre, S, Tretyak, V, Umatov, V, Vanushin, I, Vilela, C, Vorobel, V, Waters, D, Xie, F, Zukauskas, A, Arnold R., Augier C., Barabash A. S., Basharina-Freshville A., Blondel S., Blot S., Bongrand M., Boursette D., Brudanin V., Busto J., Caffrey A. J., Calvez S., Cascella M., Cerna C., Cesar J. P., Chapon A., Chauveau E., Chopra A., Dawson L., Duchesneau D., Durand D., Dvornicky R., Egorov V., Eurin G., Evans J. J., Fajt L., Filosofov D., Flack R., Garrido X., Girard-Carillo C., Gomez H., Guillon B., Guzowski P., Hodak R., Huber A., Hubert P., Hugon C., Jullian S., Kochetov O., Konovalov S. I., Kovalenko V., Lalanne D., Lang K., Lemiere Y., Noblet T. L., Liptak Z., Liu X. R., Loaiza P., Lutter G., Macko M., Macolino C., Mamedov F., Marquet C., Mauger F., Minotti A., Morgan B., Mott J., Nemchenok I., Nomachi M., Nova F., Nowacki F., Ohsumi H., Oliviero G., Pahlka R. B., Patrick C., Perrot F., Pin A., Piquemal F., Povinec P., Pridal P., Ramachers Y. A., Remoto A., Reyss J. L., Riddle C. L., Rukhadze E., Saakyan R., Salamatin A., Salazar R., Sarazin X., Sedgbeer J., Shitov Y., Simard L., Simkovic F., Smetana A., Smolek K., Smolnikov A., Soldner-Rembold S., Soule B., Stekl I., Suhonen J., Sutton C. S., Szklarz G., Tedjditi H., Thomas J., Timkin V., Torre S., Tretyak V. I., Umatov V. I., Vanushin I., Vilela C., Vorobel V., Waters D., Xie F., and Zukauskas A.

Abstract

The full data set of the NEMO-3 experiment has been used to measure the half-life of the two-neutrino double beta decay of 100Mo to the ground state of 100Ru, T1/2=[6.81±0.01(stat)-0.40+0.38(syst)]×1018 year. The two-electron energy sum, single electron energy spectra and distribution of the angle between the electrons are presented with an unprecedented statistics of 5 × 10 5 events and a signal-to-background ratio of ∼ 80. Clear evidence for the Single State Dominance model is found for this nuclear transition. Limits on Majoron emitting neutrinoless double beta decay modes with spectral indices of n = 2 , 3 , 7 , as well as constraints on Lorentz invariance violation and on the bosonic neutrino contribution to the two-neutrino double beta decay mode are obtained.

Published
2019

31. ALK-2016-CPHG: étude observationnelle prospective multicentrique en vie réelle de cancers bronchiques réarrangés ALK ou ROS1 traités par crizotinib

Author

Debieuvre, D., primary, Duval, Y., additional, Le Treut, J., additional, Morel, H., additional, Baranzelli, A., additional, Bugnet, A.S., additional, Bizieux, A., additional, Delclaux, B., additional, Dayen, C., additional, Cloarec, N., additional, Decroisette, C., additional, Huchot, E., additional, Hominal, S., additional, Martinez, S., additional, Larive, S., additional, Ganga, E., additional, Moreau, L., additional, Oliviero, G., additional, Diaz, P., additional, Crequit, J., additional, Goutorbe, F., additional, Leterre, B., additional, Roa, M., additional, Guibert, C., additional, Virally, J., additional, Falchero, L., additional, Romand, P., additional, Locher, C., additional, and Molinier, O., additional

Published
2021
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34. O'nil Anteversa® mini-plate for stable hip fracture: first experience considerations and outcomes

Author

Aicale, R., Tarantino, D., Oliviero, G., Maccauro, G., Peretti, G.M., and Maffulli, N.

Subjects
Anteversa, CalTAD, O’Nil, TAD, cephalic screw, hip fracture, intertrochanteric, mini-plate, mobilisation, plate, Fracture Fixation, Internal, Hip Fractures, Humans, Treatment Outcome, Bone Plates, Bone Screws, Settore MED/33 - Malattie Apparato Locomotore
Abstract

Hip fractures are associated with a 20% one-year mortality and a 50% loss of function. Over 700,000 deaths are estimated to occur annually worldwide following hip fractures. Concern exist regarding which is the best implant for extracapsular fractures fixation. For a correct positioning of the cephalic screw, a new plate (O'Nil Anteversa® mini-plate, Intrauma, Torino, Italy) with a fixed 8°of anteversion in the axial plane was developed. A total of 22 patients with an intertrochanteric fracture underwent surgery with Anteversa® mini-plate between October 2016 and April 2017. Data collected included patients' age at surgery, gender, fracture type, operative side, surgeon, type of implant, TAD, CalTAD and TADCalTAD. All patients underwent clinical and radiographic evaluations according to the AO Surgery Reference classification. The mean TAD, CalTAD and TADcalTAD for the entire population of study were, respectively, 20.18±7.5 mm, 20.45±7.25 mm, and 40.62±14.44 mm. The mean TAD, CalTAD and TADcalTAD of those patients who experienced mobilisation of the cephalic screw were, respectively, 20.26±5.87 mm, 19.53±5.47 mm, and 39.8±11.16 mm. Three patients experienced mobilisation of the cephalic screw, and none of these had a TAD greater than 25 mm, a CalTAD greater of 25mm or a TADcalTAD greater than 50 mm. This type of device meets the essential requirements for a correct treatment of intertrochanteric fractures in elderly patients. However, the excessive need of attention in each step, and the consequent increased time of surgery, could be seen as a limitation for its use.

Published
2019

36. Effects of acute exposure to moderate altitude on blood pressure and sleep breathing patterns

Author

Torlasco, C, Bilo, G, Giuliano, A, Soranna, D, Ravaro, S, Oliviero, G, Faini, A, Zambon, A, Lombardi, C, Parati, G, Torlasco, Camilla, Bilo, Grzegorz, Giuliano, Andrea, Soranna, Davide, Ravaro, Silvia, Oliviero, Giorgio, Faini, Andrea, Zambon, Antonella, Lombardi, Carolina, Parati, Gianfranco, Torlasco, C, Bilo, G, Giuliano, A, Soranna, D, Ravaro, S, Oliviero, G, Faini, A, Zambon, A, Lombardi, C, Parati, G, Torlasco, Camilla, Bilo, Grzegorz, Giuliano, Andrea, Soranna, Davide, Ravaro, Silvia, Oliviero, Giorgio, Faini, Andrea, Zambon, Antonella, Lombardi, Carolina, and Parati, Gianfranco

Abstract

Background: Acute exposure to high altitude (>2500 m) is known to induce a rise in blood pressure (BP) and the appearance of sleep related breathing alterations, in particular central sleep apneas and periodic breathing. Little information is available on whether this is the case in humans also for acute exposure to moderate altitude (between 1500 and 2500 m). Aim of this study was to evaluate the effects of acute exposure of healthy volunteers to moderate altitude on conventional and ambulatory BP as well as on the frequency and severity of breathing alterations during sleep. Methods: Forty-four healthy lowlanders underwent 24-hour ambulatory BP monitoring and nocturnal cardio-respiratory sleep study at sea level and during acute (1–2 days after arrival) exposure to moderate altitude (2035 m, Sestriere, Italy). The key variables investigated included average systolic and diastolic BP and heart rate over daytime, night-time and 24 h, the frequency of obstructive and central apneas/hypopnoeas and the behaviour of oxygen saturation during sleep. Results: Compared to sea level, during moderate altitude exposure mean systolic/diastolic BP increased significantly during daytime (respectively from 125.6 ± 10.9 to 130.6 ± 12.3, p = 0.0032 and from 78.8 ± 6.7 to 81.8 ± 7.7 mmHg, p = 0.0048) and during night-time (respectively from 102.4 ± 12.4 to 107.4 ± 12.7, p = 0.0028, and from 62.0 ± 8.2 to 65.8 ± 8.2 mmHg, p = 0.0014), with no change in nocturnal BP dipping. BP increase was more evident in participants aged over 40 years. Apnea-hypopnea index (AHI) increased from 1.60 (0.40–2.90) to 5.4 (2.90–10.60), p < 0.0001), mainly because of increasing frequency of hypopneas and central apneas, in particular in males aged over 40 years. No association was found between size of BP changes and AHI. Conclusion: Our results indicate that in healthy subjects even exposure to moderate altitude may induce significant, although mild, changes in ambulatory BP and in respiratory patt

Published
2020

42. Development of methods for the preparation of radiopure 82Se sources for the SuperNEMO neutrinoless double-beta decay experiment

Author

Rakhimov, Alimardon V., primary, Barabash, A. S., additional, Basharina-Freshville, A., additional, Blot, S., additional, Bongrand, M., additional, Bourgeois, Ch., additional, Breton, D., additional, Breier, R., additional, Birdsall, E., additional, Brudanin, V. B., additional, Burešova, H., additional, Busto, J., additional, Calvez, S., additional, Cascella, M., additional, Cerna, C., additional, Cesar, J. P., additional, Chauveau, E., additional, Chopra, A., additional, Claverie, G., additional, De Capua, S., additional, Delalee, F., additional, Duchesneau, D., additional, Egorov, V. G., additional, Eurin, G., additional, Evans, J. J., additional, Fajt, L., additional, Filosofov, D. V., additional, Flack, R., additional, Garrido, X., additional, Gomez, H., additional, Guillon, B., additional, Guzowski, P., additional, Hodák, R., additional, Holý, K., additional, Huber, A., additional, Hugon, C., additional, Jeremie, A., additional, Jullian, S., additional, Karaivanov, D. V., additional, Kauer, M., additional, Klimenko, A. A., additional, Kochetov, O. I., additional, Konovalov, S. I., additional, Kovalenko, V., additional, Lang, K., additional, Lemière, Y., additional, Le Noblet, T., additional, Liptak, Z., additional, Liu, X. R., additional, Loaiza, P., additional, Lutter, G., additional, Maalmi, J., additional, Macko, M., additional, Mamedov, F., additional, Marquet, C., additional, Mauger, F., additional, Minotti, A., additional, Mirsagatova, A. A., additional, Mirzayev, N. A., additional, Moreau, I., additional, Morgan, B., additional, Mott, J., additional, Nemchenok, I. B., additional, Nomachi, M., additional, Nova, F., additional, Ohsumi, H., additional, Oliviero, G., additional, Pahlka, R. B., additional, Pater, J. R., additional, Palušová, V., additional, Perrot, F., additional, Piquemal, F., additional, Povinec, P., additional, Pridal, P., additional, Ramachers, Y. A., additional, Rebii, A., additional, Remoto, A., additional, Richards, B., additional, Ricol, J. S., additional, Rukhadze, E., additional, Rukhadze, N. I., additional, Saakyan, R., additional, Sadikov, I. I., additional, Salazar, R., additional, Sarazin, X., additional, Sedgbeer, J., additional, Shitov, Yu. A., additional, Šimkovic, F., additional, Simard, L., additional, Smetana, A., additional, Smolek, K., additional, Smolnikov, A. A., additional, Snow, S., additional, Söldner-Rembold, S., additional, Soulé, B., additional, Špavorova, M., additional, Štekl, I., additional, Tashimova, F. A., additional, Thomas, J., additional, Timkin, V., additional, Torre, S., additional, Tretyak, Vl. I., additional, Tretyak, V. I., additional, Umatov, V. I., additional, Vilela, C., additional, Vorobel, V., additional, Warot, G., additional, Waters, D., additional, Zampaolo, M., additional, and Žukauskas, A., additional

Published
2019
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44. Tolérance et efficacité en monde réel des inhibiteurs tyrosine-kinase (TKI) de l'EGFR chez les patients octogénaires atteints de cancer du poumon non à petites cellules (CPNPC) porteurs d'une mutation activatrice de l'EGFR. Etude OCTOMUT GFPC 07-15

Author

auliac, JB, Guisier, F, Robinet, G, Oliviero, G, Thomas, P, Baize, N, Breton, Céline, Equipe Quantification en Imagerie Fonctionnelle (QuantIF-LITIS), Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes (LITIS), Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), and Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2018

48. Spatial QT dispersion predicts non-sustained ventricula tachycardia and correlates with a confined systo-diastolic dysfunction un hypertrophic cardiomyopathy

Author

Magri, D, Piccirillo, G, Ricotta, A, De Cecco, C, Mastromarino, V, Serdoz, A, Muscogiuri, G, Gregori, M, Casenghi, M, Cauti, F, Oliviero, G, Musumeci, M, Maruotti, A, Autore, C, Magri D., Piccirillo G., Ricotta A., De Cecco C. N., Mastromarino V., Serdoz A., Muscogiuri G., Gregori M., Casenghi M., Cauti F. M., Oliviero G., Musumeci M. B., Maruotti A., Autore C., Magri, D, Piccirillo, G, Ricotta, A, De Cecco, C, Mastromarino, V, Serdoz, A, Muscogiuri, G, Gregori, M, Casenghi, M, Cauti, F, Oliviero, G, Musumeci, M, Maruotti, A, Autore, C, Magri D., Piccirillo G., Ricotta A., De Cecco C. N., Mastromarino V., Serdoz A., Muscogiuri G., Gregori M., Casenghi M., Cauti F. M., Oliviero G., Musumeci M. B., Maruotti A., and Autore C.

Abstract

Objectives: An increased dispersion of myocardial repolarization represents one of the mechanisms underlying the arrhythmic risk in hypertrophic cardiomyopathy (HCM). We investigated spatial myocardial repolarization dispersion indices in HCM patients with nonsustained ventricular tachycardia (NSVT) and, contextually, their main clinical determinants. Methods: Fifty-two well-matched HCM outpatients were categorized into two groups according to the presence or the absence of NSVT at 24-hour Holter electrocardiogram (ECG) monitoring. Each patient underwent a clinical examination, including Doppler echocardiogram integrated with tissue Doppler imaging, cardiac magnetic resonance, and 12-lead surface ECG to calculate the dispersion for the following intervals: QRS, Q-Tend (QTe), Q-Tpeak, Tpeak-Tend (TpTe), J-Tpeak, and J-Tend. Results: The NSVT group showed only QTe dispersion and TpTe dispersion values to be significantly higher than their counterparts. NSVT occurrence was independently predicted by late gadolinium enhancement presence (p = 0.021) and QTe Bazett dispersion (p = 0.030), the latter strongly associated with the myocardial performance index (MPI) obtained at the basal segment of the interventricular septum (p = 0.0004). Conclusion: Our data support QTe dispersion as an easy and noninvasive tool for identifying HCM patients with NSVT propensity. The strong relationship between QTe dispersion and MPI allows us to hypothesize an intriguing link between electrical instability and confined myocardial areas of systodiastolic dysfunction.

Published
2015

49. SPATIAL QT DISPERSION PREDICTS NON-SUSTAINED VENTRICULAR TACHYCARDIA AND CORRELATES WITH A CONFINED SYSTO-DIASTOLIC DYSFUNCTION IN HYPERTROPHIC CARDIOMYOPATHY

Author

Magrì D, Piccirillo G, Ricotta A, De Cecco CN, Mastromarino V, Serdoz A, Muscogiuri G, Gregori M, Casenghi M, Cauti FM, Oliviero G, Musumeci MB, Autore C., MARUOTTI, ANTONELLO, Magrì, D, Piccirillo, G, Ricotta, A, De Cecco, Cn, Mastromarino, V, Serdoz, A, Muscogiuri, G, Gregori, M, Casenghi, M, Cauti, Fm, Oliviero, G, Musumeci, Mb, Maruotti, Antonello, and Autore, C.

Published
2015

50. Tolérance et efficacité en monde réel des inhibiteurs tyrosine-kinase (TKI) de l’EGFR chez les patients octogénaires atteints de cancer du poumon non à petites cellules (CPNPC) porteurs d’une mutation activatrice de l’EGFR. Étude OCTOMUT GFPC 07-15

Author

Auliac, J.B., primary, Guisier, F., additional, Robinet, G., additional, Oliviero, G., additional, Thomas, P., additional, Baize, N., additional, Chouaid, C., additional, and Corre, R., additional

Published
2018
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