Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Mammei, R."'
Autor:
Mathews, D. G., Acharya, H., Crawford, C. B., Gervais, M. H., Jezghani, A. P., McCrea, M., Nelsen, A., Atencio, A., Birge, N., Broussard, L. J., Choi, J. H., Gonzalez, F. M., Li, H., Macsai, N., Mendelsohn, A., Mammei, R. R., Riley, G. V., Whitehead, R. A.
The Nab experiment will measure the electron-neutrino correlation and Fierz interference term in free neutron beta decay to test the Standard Model and probe Beyond the Standard Model Physics. Using National Instrument's PXIe-5171 Reconfigurable Osci
Externí odkaz:
http://arxiv.org/abs/2407.17606
Autor:
Imajo, S., Akatsuka, H., Hatanaka, K., Higuchi, T., Ichikawa, G., Kawasaki, S., Kitaguchi, M., Mammei, R., Matsumiya, R., Mishima, K., Picker, R., Schreyer, W., Shimizu, H. M.
Publikováno v:
Phys. Rev. C 108 (2023) 034605
Metal tubes plated with nickel-phosphorus are used in many fundamental physics experiments using ultracold neutrons (UCN) because of their ease of fabrication. These tubes are usually polished to a average roughness of 25-150 nm. However, there is no
Externí odkaz:
http://arxiv.org/abs/2303.15461
Autor:
Akatsuka, H., Andalib, T., Bell, B., Berean-Dutcher, J., Bernier, N., Bidinosti, C. P., Cude-Woods, C., Currie, S. A., Davis, C. A., Franke, B., Gaur, R., Giampa, P., Hansen-Romu, S., Hassan, M. T., Hatanaka, K., Higuchi, T., Gibson, C., Ichikawa, G., Ide, I., Imajo, S., Ito, T. M., Jamieson, B., Kawasaki, S., Kitaguchi, M., Klassen, W., Korkmaz, E., Kuchler, F., Lang, M., Lavvaf, M., Lindner, T., Makela, M., Mammei, J., Mammei, R., Martin, J. W., Matsumiya, R., Miller, E., Mishima, K., Momose, T., Morawetz, S., Morris, C. L., Ong, H. J., O'Shaughnessy, C. M., Pereira-Wilson, M., Picker, R., Piermaier, F., Pierre, E., Schreyer, W., Sidhu, S., Stang, D., Tiepo, V., Vanbergen, S., Wang, R., Wong, D., Yamamoto, N.
Publikováno v:
Nucl. Instrum. Methods Phys. Res. A 1049 (2023) 168106
Electroless nickel plating is an established industrial process that provides a robust and relatively low-cost coating suitable for transporting and storing ultracold neutrons (UCN). Using roughness measurements and UCN-storage experiments we charact
Externí odkaz:
http://arxiv.org/abs/2208.05590
Autor:
Adhikari, D., Albataineh, H., Androic, D., Aniol, K. A., Armstrong, D. S., Averett, T., Gayoso, C. Ayerbe, Barcus, S. K., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Pathak, D. Bhatta, Bhetuwal, D., Blaikie, B., Boyd, J., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Dusa, S. Covrig, Dalton, M. M., Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hassan, O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Kakkar, S., Katugampola, S., Keppel, C., King, P. M., King, D. E., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyanage, N., Mammei, J., Mammei, R., McCaughan, 23 M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mihovilovic, M., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Quinn, B., Radloff, R., Rahman, S., Rashad, M. N. H., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y. R., Seeds, S., Shahinyan, A., Souder, P., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Xiong, W., Zec, A., Zhang, W., Zhang, J., Zheng, X.
We report a precise measurement of the parity-violating asymmetry $A_{\rm PV}$ in the elastic scattering of longitudinally polarized electrons from $^{48}{\rm Ca}$. We measure $A_{\rm PV} =2668\pm 106\ {\rm (stat)}\pm 40\ {\rm (syst)}$ parts per bill
Externí odkaz:
http://arxiv.org/abs/2205.11593
Autor:
PREX, Collaborations, CREX, Adhikari, D., Albataineh, H., Androic, D., Aniol, K., Armstrong, D. S., Averett, T., Gayoso, C. Ayerbe, Barcus, S., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Pathak, D. Bhatta, Bhetuwal, D., Blaikie, B., Boyd, J., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Dusa, S. Covrig, Dalton, M. M., Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Karki, B., Kakkar, S., Katugampola, S., Keppel, C. E., King, P. M., King, D. E., Knauss, M., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyange, N., Malace, S., Mammei, J., Mammei, R., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mihovilovic, M., Mondal, M. M., Napolitano, J., Nikolaev, D., Rashad, M. N. H., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Puckett, A. J. R., Quinn, B., Radloff, R., Rahman, S., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y., Seeds, S., Shahinyan, A., Souder, P. A., Tang, L., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Xiong, W., Yale, B., Ye, T., Zec, A., Zhang, W., Zhang, J., Zheng, X.
Publikováno v:
Phys.Rev.Lett. 128 (2022) 14, 142501
We report precision determinations of the beam normal single spin asymmetries ($A_n$) in the elastic scattering of 0.95 and 2.18~GeV electrons off $^{12}$C, $^{40}$Ca, $^{48}$Ca, and $^{208}$Pb at very forward angles where the most detailed theoretic
Externí odkaz:
http://arxiv.org/abs/2111.04250
Autor:
Adhikari, D., Albataineh, H., Androic, D., Aniol, K., Armstrong, D. S., Averett, T., Barcus, S., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Pathak, D. Bhatta, Bhetuwal, D., Blaikie, B., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Dusa, S. Covrig, Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gayoso, C. Ayerbe, Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Karki, B., Katugampola, S., Keppel, C., King, P. M., King, D. E., Knauss, M., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyange, N., Malace, S., Mammei, R., Mammei, J., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Rashad, M. N. H., Owen, V., Palatchi, C., Pan, 14 J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Puckett, A. J. R., Quinn, B., Radloff, R., Rahman, S., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y., Seeds, S., Shahinyan, A., Souder, P., Tang, L., Thiel, 16 M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Zec, A., Zhang, W., Zhang, J., Zheng, X.
Publikováno v:
Phys. Rev. Lett. 126, 172502 (2021)
We report a precision measurement of the parity-violating asymmetry $A_{PV}$ in the elastic scattering of longitudinally polarized electrons from $^{208}$Pb. We measure $A_{PV}=550\pm 16 {\rm (stat)}\pm 8\ {\rm (syst)}$ parts per billion, leading to
Externí odkaz:
http://arxiv.org/abs/2102.10767
Autor:
Sun, Xuan, Adamek, E., Allgeier, B., Bagdasarova, Y., Berguno, D. B., Blatnik, M., Bowles, T. J., Broussard, L. J., Brown, M. A. -P., Carr, R., Clayton, S., Cude-Woods, C., Currie, S., Dees, E. B., Ding, X., Filippone, B. W., García, A., Geltenbort, P., Hasan, S., Hickerson, K. P., Hoagland, J., Hong, R., Holley, A. T., Ito, T. M., Knecht, A., Liu, C. -Y., Liu, J., Makela, M., Mammei, R., Martin, J. W., Melconian, D., Mendenhall, M. P., Moore, S. D., Morris, C. L., Nepal, S., Nouri, N., Pattie Jr., R. W., Galván, A. Pérez, Phillips II, D. G., Picker, R., Pitt, M. L., Plaster, B., Salvat, D. J., Saunders, A., Sharapov, E. I., Sjue, S., Slutsky, S., Sondheim, W., Swank, C., Tatar, E., Vogelaar, R. B., VornDick, B., Wang, Z., Wei, W., Wexler, J. W., Womack, T., Wrede, C., Young, A. R., Zeck, B. A.
Publikováno v:
Phys. Rev. C 101, 035503 (2020)
The Ultracold Neutron Asymmetry (UCNA) experiment was designed to measure the $\beta$-decay asymmetry parameter, $A_0$, for free neutron decay. In the experiment, polarized ultracold neutrons are transported into a decay trap, and their $\beta$-decay
Externí odkaz:
http://arxiv.org/abs/1911.05829
Autor:
Ahmed, S., Altiere, E., Andalib, T., Barnes, M. J., Bell, B., Bidinosti, C. P., Bylinsky, Y., Chak, J., Das, M., Davis, C. A., Fischer, F., Franke, B., Gericke, M. T. W., Giampa, P., Hahn, M., Hansen-Romu, S., Hatanaka, K., Hayamizu, T., Jamieson, B., Jones, D., Katsika, K., Kawasaki, S., Kikawa, T., Klassen, W., Konaka, A., Korkmaz, E., Kuchler, F., Kurchaninov, L., Lang, M., Lee, L., Lindner, T., Madison, K. W., Mammei, J., Mammei, R., Martin, J. W., Matsumiya, R., Miller, E., Momose, T., Picker, R., Pierre, E., Ramsay, W. D., Rao, Y. -N., Rawnsley, W. R., Rebenitsch, L., Schreyer, W., Sidhu, S., Vanbergen, S., van Oers, W. T. H., Watanabe, Y. X., Yosifov, D.
A fast-switching, high-repetition-rate magnet and power supply have been developed for and operated at TRIUMF, to deliver a proton beam to the new ultracold neutron (UCN) facility. The facility possesses unique operational requirements: a time-averag
Externí odkaz:
http://arxiv.org/abs/1905.08857
Autor:
Plaster, B., Adamek, E., Allgeier, B., Anaya, J., Back, H. O., Bagdasarova, Y., Berguno, D. B., Blatnik, M., Boissevain, J. G., Bowles, T. J., Broussard, L. J., Brown, M. A. -P., Carr, R., Clark, D. J., Clayton, S., Cude-Woods, C., Currie, S., Dees, E. B., Ding, X., Du, S., Filippone, B. W., Garcia, A., Geltenbort, P., Hasan, S., Hawari, A., Hickerson, K. P., Hill, R., Hino, M., Hoagland, J., Hoedl, S. A., Hogan, G. E., Hona, B., Hong, R., Holley, A. T., Ito, T. M., Kawai, T., Kirch, K., Kitagaki, S., Knecht, A., Lamoreaux, S. K., Liu, C. -Y., Liu, J., Makela, M., Mammei, R. R., Martin, J. W., Meier, N., Melconian, D., Mendenhall, M. P., Moore, S. D., Morris, C. L., Mortensen, R., Nepal, S., Nouri, N., Pattie, R. W., Galvan, A. Perez, Phillips, D. G., Pichlmaier, A., Picker, R., Pitt, M. L., Ramsey, J. C., Rios, R., Russell, R., Sabourov, K., Sallaska, A. L., Salvat, D. J., Saunders, A., Schmid, R., Seestrom, S. J., Servicky, C., Sharapov, E. I., Sjue, S. K. L., Slutsky, S., Smith, D., Sondheim, W. E., Sun, X., Swank, C., Swift, G., Tatar, E., Teasdale, W., Terai, C., Tipton, B., Utsuro, M., Vogelaar, R. B., VornDick, B., Wang, Z., Wehring, B., Wexler, J., Womack, T., Wrede, C., Xu, Y. P., Yan, H., Young, A. R., Yuan, J., Zeck, B. A.
The UCNA experiment was designed to measure the neutron $\beta$-asymmetry parameter $A_0$ using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then
Externí odkaz:
http://arxiv.org/abs/1904.05432
Autor:
Broussard, L. J., Baeßler, S., Bailey, T. L., Birge, N., Bowman, J. D., Crawford, C. B., Cude-Woods, C., Fellers, D. E., Fomin, N., Frlež, E., Gericke, M. T. W., Hayen, L., Jezghani, A. P., Li, H., Macsai, N., Makela, M. F., Mammei, R. R., Mathews, D., McGaughey, P. L., Mueller, P. E., Počanić, D., Royse, C. A., Salas-Bacci, A., Sjue, S. K. L., Ramsey, J. C., Severijns, N., Smith, E. C., Wexler, J., Whitehead, R. A., Young, A. R., Zeck, B. A.
Publikováno v:
Hyperfine Interact. 240 (2019) no.1, 1
The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants $\lambda=g_A/g_V$ with precision $\delta\lambda/\lambda\sim3\times10^{-4}$ and search for a Fierz term $b_F$ at a level $\Delta b_F<10^{-3}$. The Nab det
Externí odkaz:
http://arxiv.org/abs/1812.08258