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59 results on '"Mammei, R."'

51. A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment

Author

Holley, A. T., primary, Broussard, L. J., additional, Davis, J. L., additional, Hickerson, K., additional, Ito, T. M., additional, Liu, C.-Y., additional, Lyles, J. T. M., additional, Makela, M., additional, Mammei, R. R., additional, Mendenhall, M. P., additional, Morris, C. L., additional, Mortensen, R., additional, Pattie, R. W., additional, Rios, R., additional, Saunders, A., additional, and Young, A. R., additional

Published
2012
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52. Publisher’s Note: Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons [Phys. Rev. Lett.105, 181803 (2010)]

Author

Liu, J., primary, Mendenhall, M. P., additional, Holley, A. T., additional, Back, H. O., additional, Bowles, T. J., additional, Broussard, L. J., additional, Carr, R., additional, Clayton, S., additional, Currie, S., additional, Filippone, B. W., additional, García, A., additional, Geltenbort, P., additional, Hickerson, K. P., additional, Hoagland, J., additional, Hogan, G. E., additional, Hona, B., additional, Ito, T. M., additional, Liu, C.-Y., additional, Makela, M., additional, Mammei, R. R., additional, Martin, J. W., additional, Melconian, D., additional, Morris, C. L., additional, Pattie, R. W., additional, Pérez Galván, A., additional, Pitt, M. L., additional, Plaster, B., additional, Ramsey, J. C., additional, Rios, R., additional, Russell, R., additional, Saunders, A., additional, Seestrom, S. J., additional, Sondheim, W. E., additional, Tatar, E., additional, Vogelaar, R. B., additional, VornDick, B., additional, Wrede, C., additional, Yan, H., additional, and Young, A. R., additional

Published
2010
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53. Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons

Author

Liu, J., primary, Mendenhall, M. P., additional, Holley, A. T., additional, Back, H. O., additional, Bowles, T. J., additional, Broussard, L. J., additional, Carr, R., additional, Clayton, S., additional, Currie, S., additional, Filippone, B. W., additional, García, A., additional, Geltenbort, P., additional, Hickerson, K. P., additional, Hoagland, J., additional, Hogan, G. E., additional, Hona, B., additional, Ito, T. M., additional, Liu, C.-Y., additional, Makela, M., additional, Mammei, R. R., additional, Martin, J. W., additional, Melconian, D., additional, Morris, C. L., additional, Pattie, R. W., additional, Pérez Galván, A., additional, Pitt, M. L., additional, Plaster, B., additional, Ramsey, J. C., additional, Rios, R., additional, Russell, R., additional, Saunders, A., additional, Seestrom, S. J., additional, Sondheim, W. E., additional, Tatar, E., additional, Vogelaar, R. B., additional, VornDick, B., additional, Wrede, C., additional, Yan, H., additional, and Young, A. R., additional

Published
2010
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54. First Measurement of the NeutronβAsymmetry with Ultracold Neutrons

Author

Pattie, R. W., primary, Anaya, J., additional, Back, H. O., additional, Boissevain, J. G., additional, Bowles, T. J., additional, Broussard, L. J., additional, Carr, R., additional, Clark, D. J., additional, Currie, S., additional, Du, S., additional, Filippone, B. W., additional, Geltenbort, P., additional, García, A., additional, Hawari, A., additional, Hickerson, K. P., additional, Hill, R., additional, Hino, M., additional, Hoedl, S. A., additional, Hogan, G. E., additional, Holley, A. T., additional, Ito, T. M., additional, Kawai, T., additional, Kirch, K., additional, Kitagaki, S., additional, Lamoreaux, S. K., additional, Liu, C.-Y., additional, Liu, J., additional, Makela, M., additional, Mammei, R. R., additional, Martin, J. W., additional, Melconian, D., additional, Meier, N., additional, Mendenhall, M. P., additional, Morris, C. L., additional, Mortensen, R., additional, Pichlmaier, A., additional, Pitt, M. L., additional, Plaster, B., additional, Ramsey, J. C., additional, Rios, R., additional, Sabourov, K., additional, Sallaska, A. L., additional, Saunders, A., additional, Schmid, R., additional, Seestrom, S., additional, Servicky, C., additional, Sjue, S. K. L., additional, Smith, D., additional, Sondheim, W. E., additional, Tatar, E., additional, Teasdale, W., additional, Terai, C., additional, Tipton, B., additional, Utsuro, M., additional, Vogelaar, R. B., additional, Wehring, B. W., additional, Xu, Y. P., additional, Young, A. R., additional, and Yuan, J., additional

Published
2009
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55. Measurement of the loss and depolarization probability of UCN on beryllium and diamond like carbon films

Author

Brys, T., primary, Daum, M., additional, Fierlinger, P., additional, Geltenbort, P., additional, Gupta, M., additional, Henneck, R., additional, Heule, S., additional, Kirch, K., additional, Lasakov, M., additional, Mammei, R., additional, Makela, M., additional, Pichlmaier, A., additional, Serebrov, A., additional, Straumann, U., additional, Vogelaar, R.B., additional, Wermelinger, C., additional, and Young, A., additional

Published
2005
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56. The MOLLER Experiment: An Ultra-Precise Measurement of the Weak Mixing Angle Using M{\o}ller Scattering

Author

Benesch, J., Brindza, P., Carlini, R. D., Chen, J-P, Chudakov, E., Covrig, S., Mark Macrae Dalton, Deur, A., Gaskell, D., Gavalya, A., Gomez, J., Higinbotham, D. W., Keppel, C., Meekins, D., Michaels, R., Moffit, B., Roblin, Y., Suleiman, R., Wines, R., Wojtsekhowski, B., Cates, G., Crabb, D., Day, D., Gnanvo, K., Keller, D., Liyanage, N., Nelyubin, V. V., Nguyen, H., Norum, B., Paschke, K., Sulkosky, V., Zhang, J., Zheng, X., Birchall, J., Blunden, P., Gericke, M. T. W., Falk, W. R., Lee, L., Mammei, J., Page, S. A., Oers, W. T. H., Dehmelt, K., Deshpande, A., Feege, N., Hemmick, T. K., Kumar, K. S., Kutz, T., Miskimen, R., Ramsey-Musolf, M. J., Riordan, S., Saylor, N. Hirlinger, Bessuille, J., Ihloff, E., Kelsey, J., Kowalski, S., Silwal, R., Cataldo, G., Leo, R., Di Bari, D., Lagamba, L., Nappi, E., Bellini, V., Mammoliti, F., Noto, F., Sperduto, M. L., Sutera, C. M., Cole, P., Forest, T. A., Khandekar, M., Mcnulty, D., Aulenbacher, K., Baunack, S., Maas, F., Tioukine, V., Gilman, R., Myers, K., Ransome, R., Tadepalli, A., Beniniwattha, R., Holmes, R., Souder, P., Armstrong, D. S., Averett, T. D., Deconinck, W., Duvall, W., Lee, A., Pitt, M. L., Dunne, J. A., Dutta, D., El Fassi, L., Itard, F., Munoz Camacho, C., Persio, F., Meddi, F., Urciuoli, G. M., Cisbani, E., Fanelli, C., Garibaldi, F., Johnston, K., Simicevic, N., Wells, S., King, P. M., Roche, J., Arrington, J., Reimer, P. E., Franklin, G., Quinn, B., Petratos, G. G., Ahmidouch, A., Danagoulian, S., Glamazdin, O., Pomatsalyuk, R., Mammei, R., Martin, J. W., Holmstrom, T., Erler, J., Kolomensky, Yu G., Napolitano, J., Aniol, K. A., Ramsay, W. D., Korkmaz, E., Spayde, D. T., Benmokhtar, F., Del Dotto, A., Perrino, R., Barkanova, S., Aleksejevs, A., and Singh, J.

58. New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering over a Range of Spin-0 Nuclei.

Author

Adhikari D, Albataineh H, Androic D, Aniol K, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus S, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Boyd J, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Dalton MM, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Karki B, Kakkar S, Katugampola S, Keppel CE, King PM, King DE, Knauss M, Kumar KS, 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 MM, Napolitano J, Nikolaev D, Rashad MNH, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Puckett AJR, Quinn B, Radloff R, Rahman S, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin Y, Seeds S, Shahinyan A, Souder PA, Tang L, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Xiong W, Yale B, Ye T, Zec A, Zhang W, Zhang J, and Zheng X

Abstract

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 theoretical calculations have been performed. The first measurements of A_{n} for ^{40}Ca and ^{48}Ca are found to be similar to that of ^{12}C, consistent with expectations and thus demonstrating the validity of theoretical calculations for nuclei with Z≤20. We also report A_{n} for ^{208}Pb at two new momentum transfers (Q^{2}) extending the previous measurement. Our new data confirm the surprising result previously reported, with all three data points showing significant disagreement with the results from the Z≤20 nuclei. These data confirm our basic understanding of the underlying dynamics that govern A_{n} for nuclei containing ≲50 nucleons, but point to the need for further investigation to understand the unusual A_{n} behavior discovered for scattering off ^{208}Pb.

Published
2022
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59. First measurement of the neutron beta asymmetry with ultracold neutrons.

Author

Pattie RW Jr, Anaya J, Back HO, Boissevain JG, Bowles TJ, Broussard LJ, Carr R, Clark DJ, Currie S, Du S, Filippone BW, Geltenbort P, García A, Hawari A, Hickerson KP, Hill R, Hino M, Hoedl SA, Hogan GE, Holley AT, Ito TM, Kawai T, Kirch K, Kitagaki S, Lamoreaux SK, Liu CY, Liu J, Makela M, Mammei RR, Martin JW, Melconian D, Meier N, Mendenhall MP, Morris CL, Mortensen R, Pichlmaier A, Pitt ML, Plaster B, Ramsey JC, Rios R, Sabourov K, Sallaska AL, Saunders A, Schmid R, Seestrom S, Servicky C, Sjue SK, Smith D, Sondheim WE, Tatar E, Teasdale W, Terai C, Tipton B, Utsuro M, Vogelaar RB, Wehring BW, Xu YP, Young AR, and Yuan J

Abstract

We report the first measurement of an angular correlation parameter in neutron beta decay using polarized ultracold neutrons (UCN). We utilize UCN with energies below about 200 neV, which we guide and store for approximately 30 s in a Cu decay volume. The interaction of the neutron magnetic dipole moment with a static 7 T field external to the decay volume provides a 420 neV potential energy barrier to the spin state parallel to the field, polarizing the UCN before they pass through an adiabatic fast passage spin flipper and enter a decay volume, situated within a 1 T field in a 2x2pi solenoidal spectrometer. We determine a value for the beta-asymmetry parameter A_{0}=-0.1138+/-0.0046+/-0.0021.

Published
2009
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