Zobrazeno 1 - 10
of 238
pro vyhledávání: '"WALSTROM, P."'
Autor:
Musedinovic, R., Blokland, L. S., Cude-Woods, C. B., Singh, M., Blatnik, M. A., Callahan, N., Choi, J. H., Clayton, S., Filippone, B. W., Fox, W. R., Fries, E., Geltenbort, P., Gonzalez, F. M., Hayen, L., Hickerson, K. P., Holley, A. T., Ito, T. M., Komives, A., Lin, S, Liu, Chen-Yu, Makela, M. F., O'Shaughnessy, C. M., Pattie Jr, R. W., Ramsey, J. C., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Tang, Z., Uhrich, F. W., Vanderwerp, J., Walstrom, P., Wang, Z., Young, A. R., Morris, C. L.
Here we publish three years of data for the UCNtau experiment performed at the Los Alamos Ultra Cold Neutron Facility at the Los Alamos Neutron Science Center. These data are in addition to our previously published data. Our goals in this paper are t
Externí odkaz:
http://arxiv.org/abs/2409.05560
Autor:
Blatnik, M. F., Blokland, L. S., Callahan, N., Choi, J. H., Clayton, S., Cude-Woods, C. B, Filippone, B. W., Fox, W. R., Fries, E., Geltenbort, P., Gonzalez, F. M., Hayen, L., Hickerson, K. P., Holley, A. T., Ito, T. M., Komives, A., Lin, S, Liu, Chen-Yu, Makela, M. F., Morris, C. L., Musedinovic, R., O'Shaughnessy, C. M., Pattie Jr., R. W., Ramsey, J. C., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Singh, M., Tang, Z., Uhrich, W. F., Vanderwerp, J., Walstrom, P., Wang, Z., Young, A. R.
The past two decades have yielded several new measurements and reanalysis of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing
Externí odkaz:
http://arxiv.org/abs/2406.10378
Autor:
Wisam Barkho, Nathan C. Carnes, Claire A. Kolaja, Xin M. Tu, Satbir K. Boparai, Sheila F. Castañeda, Beverly D. Sheppard, Jennifer L. Walstrom, Jennifer N. Belding, Rudolph P. Rull, the Millennium Cohort Study Team
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The Millennium Cohort Study is a longitudinal study which collects self-reported data from surveys to examine the long-term effects of military service. Participant nonresponse to follow-up surveys presents a potential threat to the validity
Externí odkaz:
https://doaj.org/article/49f6b37b04064e0c8118b4186a6adcf2
Autor:
Cude-Woods, C., Gonzalez, F. M., Fries, E. M., Bailey, T., Blatnik, M., Callahan, N. B., Choi, J. H., Clayton, S. M., Currie, S. A., Dawid, M., Filippone, B. W., Fox, W., Geltenbort, P., George, E., Hayen, L., Hickerson, K. P., Hoffbauer, M. A., Hoffman, K., Holley, A. T., Ito, T. M., Komives, A., Liu, C. -Y., Makela, M., Morris, C. L., Musedinovic, R., O'Shaughnessy, C., Pattie, Jr., R. W., Ramsey, J., Salvat, D. J., Saunders, A., Sharapov, 5 E. I., Slutsky, S., Su, V., Sun, X., Swank, C., Tang, Z., Uhrich, W., Vanderwerp, J., Walstrom, P., Wang, Z., Wei, W., Young, A. R.
The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing
Externí odkaz:
http://arxiv.org/abs/2205.02323
Autor:
Gonzalez, F. M., Fries, E. M., Cude-Woods, C., Bailey, T., Blatnik, M., Broussard, L. J., Callahan, N. B., Choi, J. H., Clayton, S. M., Currie, S. A., Dawid, M., Dees, E. B., Filippone, B. W., Fox, W., Geltenbort, P., George, E., Hayen, L., Hickerson, K. P., Hoffbauer, M. A., Hoffman, K., Holley, A. T., Ito, T. M., Komives, A., Liu, C. -Y., Makela, M., Morris, C. L., Musedinovic, R., O'Shaughnessy, C., Pattie, Jr., R. W., Ramsey, J., Salvat, D. J., Saunders, A., Sharapov, E. I., Slutsky, S., Su, V., Sun, X., Swank, C., Tang, Z., Uhrich, W., Vanderwerp, J., Walstrom, P., Wang, Z., Wei, W., Young, A. R.
We report an improved measurement of the free neutron lifetime $\tau_{n}$ using the UCN$\tau$ apparatus at the Los Alamos Neutron Science Center. We counted a total of approximately $38\times10^{6}$ surviving ultracold neutrons (UCN) after storing in
Externí odkaz:
http://arxiv.org/abs/2106.10375
Autor:
Claire A. Kolaja, Jennifer N. Belding, Satbir K. Boparai, Sheila F. Castañeda, Toni Rose Geronimo-Hara, Teresa M. Powell, Xin M. Tu, Jennifer L. Walstrom, Beverly D. Sheppard, Rudolph P. Rull, for the Millennium Cohort Study Team
Publikováno v:
BMC Medical Research Methodology, Vol 23, Iss 1, Pp 1-17 (2023)
Abstract Background Patterns of survey response and the characteristics associated with response over time in longitudinal studies are important to discern for the development of tailored retention efforts aimed at minimizing response bias. The Mille
Externí odkaz:
https://doaj.org/article/ecae1a2c3271474cb54aa40e4b595640
Autor:
Kuk, K., Cude-Woods, C., Chavez, C. R., Choi, J. H., Estrada, J., Hoffbauer, M., Makela, M., Merkel, P., Morris, C. L., Ramberg, E., Wang, Z., Bailey, T., Blatnik, M., Adamek, E. R., Broussard, L. J., Brown, M. A. -P., Callahan, N. B., Clayton, S. M., Currie, S. A., Ding, X., Dinger, D., Filippone, B., Fries, E. M., Geltenbort, P., George, E., Gonzalez, F., Hickerson, K. P., Hoffman, K., Holley, A. T., Ito, T. M., MacDonald, S. W. T., Liu, C. -Y., O'Shaughnessy, C., Pattie, Jr., R. W., Phillips II, D. G., Plaster, B., Salvat, D. J., Saunders, A., Seestrom, S., Sharapov, E. I., Sjue, S. K. L., Su, V., Sun, X., Tang, Z., Walstrom, P. L., Wei, W., Wexler, J. W., Womack, T. L., Young, A. R., Zeck, B. A., collaboration, UCN
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A, Volume 1003, 1 July 2021, 165306
A new boron-coated CCD camera is described for direct detection of ultracold neutrons (UCN) through the capture reactions $^{10}$B (n,$\alpha$0$\gamma$)$^7$Li (6%) and $^{10}$B(n,$\alpha$1$\gamma$)$^7$Li (94%). The experiments, which extend earlier w
Externí odkaz:
http://arxiv.org/abs/1903.01335
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Autor:
Callahan, Nathan, Liu, Chen-Yu, Gonzalez, Francisco, Adamek, Evan, Bowman, James David, Broussard, Leah, Clayton, S. M., Currie, S., Cude-Woods, C., Dees, E. B., Ding, X., Egnel, E. M., Fellers, D., Fox, W., Geltenbort, P., Hickerson, K. P., Hoffbauer, M. A., Holley, A. T., Komives, A., MacDonald, S. W. T., Makela, M., Morris, C. L., Ortiz, J. D., Pattie Jr, R. W., Ramsey, J., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K. L., Tang, Z., Vanderwerp, J., Vogelaar, B., Walstrom, P. L., Wang, Z., Weaver, H., Wei, W., Wexler, J., Young, A. R., Zeck, B. A.
Publikováno v:
Phys. Rev. C 100, 015501 (2019)
In the UCN{\tau} experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material surfaces, which caused the largest correction in prior neutron exp
Externí odkaz:
http://arxiv.org/abs/1810.07691
Autor:
Pattie Jr., R. W., Callahan, N. B., Cude-Woods, C., Adamek, E. R., Broussard, L. J., Clayton, S. M., Currie, S. A., Dees, E. B., Ding, X., Engel, E. M., Fellers, D. E., Fox, W., Hickerson, K. P., Hoffbauer, M. A., Holley, A. T., Komives, A., Liu, C. -Y., MacDonald, S. W. T., Makela, M., Morris, C. L., Ortiz, J. D., Ramsey, J., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K., Tang, Z., Vanderwerp, J., Vogelaar, B., Walstrom, P. L., Wang, Z., Wei, W., Weaver, H. L., Wexler, J. W., Womack, T. L., Young, A. R., Zeck, B. A.
The precise value of the mean neutron lifetime, $\tau_n$, plays an important role in nuclear and particle physics and cosmology. It is a key input for predicting the ratio of protons to helium atoms in the primordial universe and is used to search fo
Externí odkaz:
http://arxiv.org/abs/1707.01817