Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Galvan, A. Perez"'
Autor:
Burkey, M. T., Savard, G., Gallant, A. T., Scielzo, N. D., Hirsh, T. Y., Varriano, L., Sargsyan, G. H., Launey, K. D., Brodeur, M., Burdette, D. P., Heckmaier, E., Joerres, K., Klimes, J. W., Kolos, K., Laminack, A., Leach, K. G., Levand, A. F., Longfellow, B., Maaß, B., Marley, S. T., Morgan, G. E., Mueller, P., Orford, R., Padgett, S. W., Galván, A. Pérez, Pierce, J. R., Ray, D., Segel, R., Siegl, K., Sharma, K. S., Wang, B. S.
Publikováno v:
Phys. Rev. Lett. 128, 202502 (2022)
The electroweak interaction in the Standard Model (SM) is described by a pure vector-axial-vector structure, though any Lorentz-invariant component could contribute. In this work, we present the most precise measurement of tensor currents in the low-
Externí odkaz:
http://arxiv.org/abs/2205.01865
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:
Alan, B. S., Caldwell, S. A., Scielzo, N. D., Czeszumska, A., Clark, J. A., Savard, G., Aprahamian, A., Burkey, M. T., Chiara, C. J., Harker, J., Levand, A. F., Marley, S. T., Morgan, G. E., Munson, J. M., Norman, E. B., Nystrom, A., Orford, R., Padgett, S. W., Galvan, A. Perez, Sharma, K. S., Siegl, K., Strauss, S. Y.
Publikováno v:
Phys. Rev. C 101, 025806 (2020)
Beta-delayed-neutron ($\beta$n) spectroscopy was performed using the Beta-decay Paul Trap and an array of radiation detectors. The $\beta$n branching ratios and energy spectra for $^{135,136}$Sb and $^{140}$I were obtained by measuring the time of fl
Externí odkaz:
http://arxiv.org/abs/1904.06623
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:
Sun, X., Adamek, E., Allgeier, 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., Hogan, G. E., 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., Ramsey, J. C., Rios, R., Salvat, D. J., Saunders, A., Sondheim, W., Sjue, S., Slutsky, S., Swank, C., Swift, G., Tatar, E., Vogelaar, R. B., VornDick, B., Wang, Z., Wei, W., Wexler, J., Womack, T., Wrede, C., Young, A. R., Zeck, B. A.
Publikováno v:
Phys. Rev. C 97, 052501 (2018)
It has been proposed recently that a previously unobserved neutron decay branch to a dark matter particle ($\chi$) could account for the discrepancy in the neutron lifetime observed in experiments that use two different measurement techniques. One of
Externí odkaz:
http://arxiv.org/abs/1803.10890
Autor:
Hickerson, K. P., Sun, X., Bagdasarova, Y., Bravo-Berguño, D., Broussard, L. J., Brown, M. A. -P., Carr, R., Currie, S., Ding, X., Filippone, B. W., García, A., Geltenbort, P., Hoagland, J., Holley, A. T., Hong, R., Ito, T. M., Knecht, A., Liu, C. -Y., Liu, J. L., Makela, M., Mammei, R. R., Martin, J. W., Melconian, D., Mendenhall, M. P., Moore, S. D., Morris, C. L., Pattie, Jr., R. W., Galván, A. Pérez, Picker, R., Pitt, M. L., Plaster, B., Ramsey, J. C., Rios, R., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sondheim, W. E., Tatar, E., Vogelaar, R. B., VornDick, B., Wrede, C., Young, A. R., Zeck, B. A.
Publikováno v:
Phys. Rev. C 96, 042501 (2017)
Precision measurements of free neutron $\beta$-decay have been used to precisely constrain our understanding of the weak interaction. However the neutron Fierz interference term $b_n$, which is particularly sensitive to Beyond-Standard-Model tensor c
Externí odkaz:
http://arxiv.org/abs/1707.00776
Autor:
Slutsky, S., Swank, C. M., Biswas, A., Carr, R., Escribano, J., Filippone, B. W., Griffith, W. C., Mendenhall, M., Nouri, N., Osthelder, C., Galván, A. Pérez, Picker, R., Plaster, B.
A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of the magnetic components for a neutron electric dipole moment (nEDM) sear
Externí odkaz:
http://arxiv.org/abs/1701.03101
Autor:
Mendenhall, M. P., Pattie Jr, R. W., Bagdasarova, Y., Berguno, D. B., Broussard, L. J., Carr, R., Currie, S., Ding, X., Filippone, B. W., García, A., Geltenbort, P., Hickerson, K. P., Hoagland, J., Holley, A. T., Hong, R., Ito, T. M., Knecht, A., Liu, C. -Y., Liu, J. L., Makela, M., Mammei, R. R., Martin, J. W., Melconian, D., Moore, S. D., Morris, C. L., Galván, A. Pérez, Picker, R., Pitt, M. L., Plaster, B., Ramsey, J. C., Rios, R., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sondheim, W. E., Tatar, E., Vogelaar, R. B., VornDick, B., Wrede, C., Young, A. R., Zeck, B. A.
A new measurement of the neutron $\beta$-decay asymmetry $A_0$ has been carried out by the UCNA collaboration using polarized ultracold neutrons (UCN) from the solid deuterium UCN source at the Los Alamos Neutron Science Center (LANSCE). Improvements
Externí odkaz:
http://arxiv.org/abs/1210.7048
Autor:
UCNA Collaboration, Plaster, B., Rios, R., Back, H. O., Bowles, T. J., Broussard, L. J., Carr, R., Clayton, S., Currie, S., Filippone, B. W., Garcia, A., Geltenbort, P., Hickerson, K. P., Hoagland, J., Hogan, G. E., Hona, B., Holley, A. T., Ito, T. M., Liu, C. -Y., Liu, J., Makela, M., Mammei, R. R., Martin, J. W., Melconian, D., Mendenhall, M. P., Morris, C. L., Mortensen, R., Pattie, Jr., R. W., Galvan, A. Perez, Pitt, M. L., Ramsey, J. C., Russell, R., Saunders, A., Schmid, R., Seestrom, S. J., Sjue, S., Sondheim, W. E., Tatar, E., Tipton, B., Vogelaar, R. B., VornDick, B., Wrede, C., Xu, Y. P., Yan, H., Young, A. R., Yuan, J.
We present a detailed report of a measurement of the neutron $\beta$-asymmetry parameter $A_0$, the parity-violating angular correlation between the neutron spin and the decay electron momentum, performed with polarized ultracold neutrons (UCN). UCN
Externí odkaz:
http://arxiv.org/abs/1207.5887
Autor:
UCNA Collaboration, Liu, J., Mendenhall, M. P., Holley, A. T., Back, H. O., Bowles, T. J., Broussard, L. J., Carr, R., Clayton, S., Currie, S., Filippone, B. W., Garcia, A., Geltenbort, P., Hickerson, K. P., Hoagland, J., Hogan, G. E., Hona, B., Ito, T. M., Liu, C. -Y., Makela, M., Mammei, R. R., Martin, J. W., Melconian, D., Morris, C. L., Pattie Jr., R. W., Galvan, A. Perez, Pitt, M. L., Plaster, B., Ramsey, J. C., Rios, R., Russell, R., Saunders, A., Seestrom, S. J., Sondheim, W. E., Tatar, E., Vogelaar, R. B., VornDick, B., Wrede, C., Yan, H., Young, A. R.
Publikováno v:
Phys.Rev.Lett.105:181803,2010
A precise measurement of the neutron decay $\beta$-asymmetry $A_0$ has been carried out using polarized ultracold neutrons (UCN) from the pulsed spallation UCN source at the Los Alamos Neutron Science Center (LANSCE). Combining data obtained in 2008
Externí odkaz:
http://arxiv.org/abs/1007.3790