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2,248 results on '"Bazin D"'

201. Electromagnetic Dissociation of 8B and the Rate of the 7Be(p,gamma)8B Reaction in the Sun

Author

Davids, B., Austin, Sam M., Bazin, D., Esbensen, H., Sherrill, B. M., Thompson, I. J., and Tostevin, J. A.

Subjects
Nuclear Experiment, Astrophysics, Nuclear Theory
Abstract

In an effort to better determine the 7Be(p,gamma)8B reaction rate, we have performed inclusive and exclusive measurements of the Coulomb dissociation of 8B. The former was a study of longitudinal momentum distributions of 7Be fragments emitted in the Coulomb breakup of intermediate energy 8B beams on Pb and Ag targets. Analysis of these data yielded the E2 contribution to the breakup cross section. In the exclusive measurement, we determined the cross section for the Coulomb breakup of 8B on Pb at low relative energies in order to infer the astrophysical S factor for the 7Be(p,gamma)8B reaction. Interpreting the measurements with 1st-order perturbation theory, we obtained SE2/SE1 = 4.7 (+ 2.0,- 1.3) times 10^-4 at Erel = 0.6 MeV, and S17(0) = 17.8 (+ 1.4,- 1.2) eV b. Semiclassical 1st-order perturbation theory and fully quantum mechanical continuum-discretized coupled channels analyses yield nearly identical results for the E1 strength relevant to solar neutrino flux calculations, suggesting that theoretical reaction mechanism uncertainties need not limit the precision of Coulomb breakup determinations of the 7Be(p,gamma)8B S factor. A recommended value of S17(0) based on a weighted average of this and other measurements is presented.

Published
2001
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202. S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B

Author

Davids, B., Anthony, D. W., Aumann, T., Austin, Sam M., Baumann, T., Bazin, D., Clement, R. R. C., Davids, C. N., Esbensen, H., Lofy, P. A., Nakamura, T., Sherrill, B. M., and Yurkon, J.

Subjects
Nuclear Experiment, Astrophysics, Nuclear Theory
Abstract

A kinematically complete measurement was made of the Coulomb dissociation of 8B nuclei on a Pb target at 83 MeV/nucleon. The cross section was measured at low relative energies in order to infer the astrophysical S factor for the 7Be(p,gamma)8B reaction. A first-order perturbation theory analysis of the reaction dynamics including E1, E2, and M1 transitions was employed to extract the E1 strength relevant to neutrino-producing reactions in the solar interior. By fitting the measured cross section from Erel = 130 keV to 400 keV, we find S17(0) = 17.8 (+1.4, -1.2) eV b.

Published
2001
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205. Spectroscopy of 13,14B via the one-neutron knockout reaction

Author

Guimaraes, V., Kolata, J. J., Bazin, D., Blank, B., Brown, B. A., Glasmacher, T., Hansen, P. G., Ibbotson, R. W., Karnes, D., Maddalena, V., Navin, A., Pritychenko, B., and Sherrill, B. M.

Subjects
Nuclear Experiment
Abstract

The single-nucleon knockout reactions 9Be(14B, 13B + gamma)X and 197Au(14B, 13B + gamma)X, at an incident energy of 60 MeV per nucleon, have been used to probe the structure of 14B and of the core fragment 13B. A dominant 2s configuration is deduced for the neutron in the ground state of 14B. The longitudinal momentum distribution for this state is consistent with "neutron halo" structure. Spin assignments for 13B excited states at 3.48 and 3.68 MeV are proposed based on the observed spectroscopic factors for one-neutron removal., Comment: 6 pages, 5 figures, submitted to Phys. Rev. C

Published
2000
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207. β+ Gamow-Teller Strengths from Unstable O14 via the (d,He2) Reaction in Inverse Kinematics

Author

Giraud, S., primary, Zamora, J. C., additional, Zegers, R. G. T., additional, Bazin, D., additional, Ayyad, Y., additional, Bacca, S., additional, Beceiro-Novo, S., additional, Brown, B. A., additional, Carls, A., additional, Chen, J., additional, Cortesi, M., additional, DeNudt, M., additional, Hagen, G., additional, Hultquist, C., additional, Maher, C., additional, Mittig, W., additional, Ndayisabye, F., additional, Noji, S., additional, Novario, S. J., additional, Pereira, J., additional, Rahman, Z., additional, Schmitt, J., additional, Serikow, M., additional, Sun, L. J., additional, Surbrook, J., additional, Watwood, N., additional, and Wheeler, T., additional

Published
2023
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209. Hexadecapole strength in the rare isotopes 74,76Kr

Author

Spieker, M., primary, Agbemava, S.E., additional, Bazin, D., additional, Biswas, S., additional, Cottle, P.D., additional, Farris, P.J., additional, Gade, A., additional, Ginter, T., additional, Giraud, S., additional, Kemper, K.W., additional, Li, J., additional, Nazarewicz, W., additional, Noji, S., additional, Pereira, J., additional, Riley, L.A., additional, Smith, M., additional, Weisshaar, D., additional, and Zegers, R.G.T., additional

Published
2023
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210. Measurement of E2 Transitions in the Coulomb Dissociation of 8B

Author

Davids, B., Anthony, D. W., Austin, Sam M., Bazin, D., Blank, B., Caggiano, J. A., Chartier, M., Esbensen, H., Hui, P., Powell, C. F., Scheit, H., Sherrill, B. M., Steiner, M., and Thirolf, P.

Subjects
Nuclear Experiment
Abstract

In an effort to understand the implications of Coulomb dissociation experiments for the determination of the 7Be(p,gamma)8B reaction rate, longitudinal momentum distributions of 7Be fragments produced in the Coulomb dissociation of 44 and 81 MeV/nucleon 8B beams on a Pb target were measured. These distributions are characterized by asymmetries interpreted as the result of interference between E1 and E2 transition amplitudes in the Coulomb breakup. At the lower beam energy, both the asymmetries and the measured cross sections are well reproduced by perturbation theory calculations, allowing a determination of the E2 strength., Comment: 8 pages, 3 figures

Published
1998
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211. The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes

Author

Weisshaar, D., Bazin, D., Bender, P.C., Campbell, C.M., Recchia, F., Bader, V., Baugher, T., Belarge, J., Carpenter, M.P., Crawford, H.L., Cromaz, M., Elman, B., Fallon, P., Forney, A., Gade, A., Harker, J., Kobayashi, N., Langer, C., Lauritsen, T., Lee, I.Y., Lemasson, A., Longfellow, B., Lunderberg, E., Macchiavelli, A.O., Miki, K., Momiyama, S., Noji, S., Radford, D.C., Scott, M., Sethi, J., Stroberg, S.R., Sullivan, C., Titus, R., Wiens, A., Williams, S., Wimmer, K., and Zhu, S.

Published
2017
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212. Cross-shell excitation in two-proton knockout: Structure of Ca52

Author

Gade, A, Janssens, RVF, Bazin, D, Broda, R, Brown, BA, Campbell, CM, Carpenter, MP, Cook, JM, Deacon, AN, Dinca, D-C, Fornal, B, Freeman, SJ, Glasmacher, T, Hansen, PG, Kay, BP, Mantica, PF, Mueller, WF, Terry, JR, Tostevin, JA, and Zhu, S

Subjects
nucl-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics
Abstract

The two-proton knockout reaction Be9(Ti54,Ca52+γ) has been studied at 72 MeV/nucleon. Besides the strong feeding of the Ca52 ground state, the only other sizeable cross section proceeds to a 3- level at 3.9 MeV. There is no measurable direct yield to the first excited 2+ state at 2.6 MeV. The results illustrate the potential of such direct reactions for exploring cross-shell proton excitations in neutron-rich nuclei and confirms the doubly-magic nature of Ca52. © 2006 The American Physical Society.

Published
2006

213. Spectroscopy of the odd-odd fp-shell nucleus Sc52 from secondary fragmentation

Author

Gade, A, Janssens, RVF, Bazin, D, Brown, BA, Campbell, CM, Carpenter, MP, Cook, JM, Deacon, AN, Dinca, D-C, Freeman, SJ, Glasmacher, T, Kay, BP, Mantica, PF, Mueller, WF, Terry, JR, and Zhu, S

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, nucl-ex, Nuclear and plasma physics
Abstract

The odd-odd fp-shell nucleus Sc52 was investigated using in-beam γ-ray spectroscopy following secondary fragmentation of a V55 and Cr57 cocktail beam. Aside from the known γ-ray transition at 674(5) keV, a new decay at Eγ=212(3) keV was observed. It is attributed to the depopulation of a low-lying excited level. This new state is discussed in the framework of shell-model calculations with the GXPF1, GXPF1A, and KB3G effective interactions. These calculations are found to be fairly robust for the low-lying level scheme of Sc52 irrespective of the choice of the effective interaction. In addition, the frequency of spin values predicted by the shell model is successfully modeled by a spin distribution formulated in a statistical approach with an empirical, energy-independent spin-cutoff parameter. © 2006 The American Physical Society.

Published
2006

214. Hexadecapole strength in the rare isotopes Kr

Author

Spieker, M., Agbemava, S.E., Bazin, D., Biswas, S., Cottle, P.D., Farris, P.J., Gade, A., Ginter, T., Giraud, S., Kemper, K.W., Li, J., Nazarewicz, W., Noji, S., Pereira, J., Riley, L.A., Smith, M., Weisshaar, D., and Zegers, R.G.T.

Abstract

In the Ge-Sr mass region, isotopes with neutron number N≤40 are known to feature rapid shape changes with both nucleon number and angular momentum. To gain new insights into their structure, inelastic proton scattering experiments in inverse kinematics were performed on the rare isotopes 74,76Kr. This work focuses on observables related to the Jπ=41+ states of the Kr isotopes and, in particular, on the hexadecapole degree of freedom. By performing coupled-channels calculations, hexadecapole deformation parameters β4 were determined for the Jπ=41+ states of 74,76Kr from inelastic proton scattering cross sections. Two possible coupled-channels solutions were found. A comparison to predictions from nuclear energy density functional theory, employing both non-relativistic and relativistic functionals, clearly favors the large, positive β4 solutions. These β4 values are unambiguously linked to the well deformed prolate configuration. Given the β2−β4 trend, established in this work, it appears that β4 values could provide a sensitive measure of the nuclear shell structure.

Published
2023

216. Measurement of the B(E2↑) strengths of Ca36 and Ca38

Author

Dronchi, N., primary, Weisshaar, D., additional, Brown, B. A., additional, Gade, A., additional, Charity, R. J., additional, Sobotka, L. G., additional, Brown, K. W., additional, Reviol, W., additional, Bazin, D., additional, Farris, P. J., additional, Hill, A. M., additional, Li, J., additional, Longfellow, B., additional, Rhodes, D., additional, Paneru, S. N., additional, Gillespie, S. A., additional, Anthony, A., additional, Rubino, E., additional, and Biswas, S., additional

Published
2023
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217. Large collectivity in 29Ne at the boundary of the island of inversion

Author

Revel, A., primary, Wu, J., additional, Iwasaki, H., additional, Ash, J., additional, Bazin, D., additional, Brown, B.A., additional, Chen, J., additional, Elder, R., additional, Farris, P., additional, Gade, A., additional, Grinder, M., additional, Kobayashi, N., additional, Li, J., additional, Longfellow, B., additional, Mijatović, T., additional, Pereira, J., additional, Poves, A., additional, Sanchez, A., additional, Shimizu, N., additional, Spieker, M., additional, Utsuno, Y., additional, and Weisshaar, D., additional

Published
2023
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221. Inverse kinematics [formula omitted] reactions studies using the WINDS slow neutron detector and the SAMURAI spectrometer

Author

Yasuda, J., Sasano, M., Zegers, R.G.T., Baba, H., Chao, W., Dozono, M., Fukuda, N., Inabe, N., Isobe, T., Jhang, G., Kameda, D., Kubo, T., Kurata-Nishimura, M., Milman, E., Motobayashi, T., Otsu, H., Panin, V., Powell, W., Sakai, H., Sako, M., Sato, H., Shimizu, Y., Stuhl, L., Suzuki, H., Tangwancharoen, S., Takeda, H., Uesaka, T., Yoneda, K., Zenihiro, J., Kobayashi, T., Sumikama, T., Tako, T., Nakamura, T., Kondo, Y., Togano, Y., Shikata, M., Tsubota, J., Yako, K., Shimoura, S., Ota, S., Kawase, S., Kubota, Y., Takaki, M., Michimasa, S., Kisamori, K., Lee, C.S., Tokieda, H., Kobayashi, M., Koyama, S., Kobayashi, N., Wakasa, T., Sakaguchi, S., Krasznahorkay, A., Murakami, T., Nakatsuka, N., Kaneko, M., Matsuda, Y., Mucher, D., Reichert, S., Bazin, D., and Lee, J.W.

Published
2016
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224. Large collectivity in Ne at the boundary of the island of inversion

Author

Revel, A., Wu, J., Iwasaki, H., Ash, J., Bazin, D., Brown, B.A., Chen, J., Elder, R., Farris, P., Gade, A., Grinder, M., Kobayashi, N., Li, J., Longfellow, B., Mijatović, T., Pereira, J., Poves, A., Sanchez, A., Shimizu, N., Spieker, M., Utsuno, Y., and Weisshaar, D.

Abstract

The heavy-ion inelastic scattering of the neutron-rich nucleus $^{29}$Ne to its excited states was studied using a 100.1 MeV/u $^{29}$Ne rare isotope beam on $^{181}$Ta and $^{9}$Be targets. The combined setup consisting of the GRETINA array, the TRIPLEX device and the S800 Spectrograph facilitates the simultaneous measurements of the two inelastic reactions, providing the first measurement of the transition strengths for this isotope. A sizable E2 strength B(E2↑) which amounts to 163(30) e$^{2}$fm$^{4}$ was determined in the excitation to the 931-keV state, demonstrating a large degree of collectivity. The present results of B(E2↑) are compared to various shell-model calculations, confirming the role of intruder configurations in $^{29}$Ne at the boundary of the island of inversion.

Published
2023

225. First identification of 58Zn β-delayed proton emission

Author

Ciemny, A., primary, Dominik, W., additional, Ginter, T., additional, Grzywacz, R., additional, Janas, Z., additional, Kuich, M., additional, Mazzocchi, C., additional, Pfutzner, M., additional, Pomorski, M., additional, Bazin, D., additional, Baumann, T., additional, Bezbakh, A., additional, Crider, B., additional, Cwiok, M., additional, Go, S., additional, Kaminski, G., additional, Kolos, K., additional, Korgul, A., additional, Kwan, E., additional, Liddick, S., additional, Miernik, K., additional, Paulauskas, S., additional, Pereira, J, additional, Roginski, T., additional, Rykaczewski, K., additional, Sumithtatachchi, C., additional, Xiao, Y., additional, Schatz, H., additional, and Sarriguren, P., additional

Published
2020
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227. Tracking rare-isotope beams with microchannel plates

Author

Rogers, A.M., Sanetullaev, A., Lynch, W.G., Tsang, M.B., Lee, J., Bazin, D., Coupland, D., Henzl, V., Henzlova, D., Kilburn, M., Wallace, M.S., Youngs, M., Delaunay, F., Famiano, M., Shapira, D., Jones, K.L., Schmitt, K.T., and Sun, Z.Y.

Published
2015
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231. Probing the quadrupole transition strength of C15 via deuteron inelastic scattering

Author

Chen, J., primary, Kay, B. P., additional, Tang, T. L., additional, Tolstukhin, I. A., additional, Hoffman, C. R., additional, Li, H., additional, Yin, P., additional, Zhao, X., additional, Maris, P., additional, Vary, J. P., additional, Li, G., additional, Lou, J. L., additional, Avila, M. L., additional, Ayyad, Y., additional, Bennett, S., additional, Bazin, D., additional, Clark, J. A., additional, Freeman, S. J., additional, Jayatissa, H., additional, Müller-Gatermann, C., additional, Munoz-Ramos, A., additional, Santiago-Gonzalez, D., additional, Sharp, D. K., additional, Wuosmaa, A. H., additional, and Yuan, C. X., additional

Published
2022
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232. Dissipative Reactions with Intermediate-Energy Beams: A Novel Approach to Populate Complex-Structure States in Rare Isotopes

Author

Gade, A., primary, Brown, B. A., additional, Weisshaar, D., additional, Bazin, D., additional, Brown, K. W., additional, Charity, R. J., additional, Farris, P., additional, Hill, A. M., additional, Li, J., additional, Longfellow, B., additional, Rhodes, D., additional, Reviol, W., additional, and Tostevin, J. A., additional

Published
2022
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235. Probing spin-isospin excitations in proton-rich nuclei via the C11(p,n)N11 reaction

Author

Schmitt, J., primary, King, G. B., additional, Zegers, R. G. T., additional, Ayyad, Y., additional, Bazin, D., additional, Brown, B. A., additional, Carls, A., additional, Chen, J., additional, Davis, A., additional, DeNudt, M., additional, Droste, J., additional, Gao, B., additional, Hultquist, C., additional, Iwasaki, H., additional, Noji, S., additional, Pastore, S., additional, Pereira, J., additional, Piarulli, M., additional, Sakai, H., additional, Stolz, A., additional, Titus, R., additional, Wiringa, R. B., additional, and Zamora, J. C., additional

Published
2022
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236. Investigation of octupole collectivity near the A=72 shape-transitional point

Author

Spieker, M., primary, Riley, L. A., additional, Cottle, P. D., additional, Kemper, K. W., additional, Bazin, D., additional, Biswas, S., additional, Farris, P. J., additional, Gade, A., additional, Ginter, T., additional, Giraud, S., additional, Li, J., additional, Noji, S., additional, Pereira, J., additional, Smith, M., additional, Weisshaar, D., additional, and Zegers, R. G. T., additional

Published
2022
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237. Probing the quadrupole transition strength of C15 via deuteron inelastic scattering

Author

Chen, J., Kay, B. P., Tang, T. L., Tolstukhin, I. A., Hoffman, C. R., Li, H., Yin, P., Zhao, X., Maris, P., Vary, J. P., Li, G., Lou, J. L., Avila, M. L., Ayyad, Y., Bennett, S., Bazin, D., Clark, J. A., Freeman, S. J., Jayatissa, H., Müller-Gatermann, C., Munoz-Ramos, A., Santiago-Gonzalez, D., Sharp, D. K., Wuosmaa, A. H., and Yuan, C. X.

Abstract

Deuteron elastic scattering from 15C and inelastic scattering reactions to the first excited state of 15C were studied using a radioactive beam of 15 C in inverse kinematics. The scattered deuterons were measured using HELIOS. The elastic scattering differential cross sections were analyzed using the optical model. A matter deformation length δd=1.04(11)fm has been extracted from the differential cross sections of inelastic scattering to the first excited state. The ratio of neutron and proton matrix elements Mn/Mp=3.6(4) has been determined from this quadrupole transition. Neutron effective charges and core-polarization parameters of 15C were determined and discussed. Results from ab initio no-core configuration interaction calculations were also compared with the experimental observations. This result supports a moderate core decoupling effect of the valence neutron in 15 C similarly to its isotone 17 O , in line with the interpretation of other neutron-rich carbon isotopes.

Published
2022

239. Probing the quadrupole transition strength of $^{15}$C via deuteron inelastic scattering

Author

Chen, J., Kay, B. P., Tang, T. L., Tolstukhin, I. A., Hoffman, C. R., Li, H., Yin, P., Zhao, X., Maris, P., Vary, J. P., Li, G., Lou, J. L., Avila, M. L., Ayyad, Y., Bennett, S., Bazin, D., Clark, J. A., Freeman, S. J., Jayatissa, H., Müller-Gatermann, C., Munoz, A., Santiago-Gonzalez, D., Sharp, D. K., Wuosmaa, A. H., and Yuan, C. X.

Subjects
FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment
Abstract

Deuteron elastic scattering from $^{15}$C and inelastic scattering reactions to the first excited state of $^{15}$C were studied using a radioactive beam of $^{15}$C in inverse kinematics. The scattered deuterons were measured using HELIOS. The elastic scattering differential cross sections were analyzed using the optical model. A matter deformation length δd = 1.04(11) fm has been extracted from the differential cross sections of inelastic scattering to the first excited state. The ratio of neutron and proton matrix elements Mn/Mp = 3.6(4) has been determined from this quadrupole transition. Neutron effective charges and core-polarization parameters of $^{15}$C were determined and discussed. Results from ab initio no-core configuration interaction calculations were also compared with the experimental observations. This result supports a moderate core decoupling effect of the valence neutron in $^{15}$C similarly to its isotone $^{17}$O, in line with the interpretation of other neutron-rich carbon isotopes. Deuteron elastic scattering from 15C and inelastic scattering reactions to the first excited state of 15C were studied using a radioactive beam of 15C in inverse kinematics. The scattered deuterons were measured using HELIOS. The elastic scattering differential cross sections were analyzed using the optical model. A matter deformation length δd = 1.04(11) fm has been extracted from the differential cross sections of inelastic scattering to the first excited state. The ratio of neutron and proton matrix elements Mn/Mp = 3.6(4) has been determined from this quadrupole transition. Neutron effective charges and core-polarization parameters of 15C were determined and discussed. Results from ab-initio no-core configuration interaction calculations were also compared with the experimental observations. This result supports a moderate core decoupling effect of the valence neutron in 15C similarly to its isotone 17O, in line with the interpretation of other neutron-rich carbon isotopes.

Published
2022

241. Spectroscopy of the T=32 A=47 and A=45 mirror nuclei via one- and two-nucleon knockout reactions

Author

Uthayakumaar, S., primary, Bentley, M. A., additional, Simpson, E. C., additional, Haylett, T., additional, Yajzey, R., additional, Lenzi, S. M., additional, Satuła, W., additional, Bazin, D., additional, Belarge, J., additional, Bender, P. C., additional, Davies, P. J., additional, Elman, B., additional, Gade, A., additional, Iwasaki, H., additional, Kahl, D., additional, Kobayashi, N., additional, Longfellow, B., additional, Lonsdale, S. J., additional, Lunderberg, E., additional, Morris, L., additional, Napoli, D. R., additional, Parry, T. G., additional, Pereira-Lopez, X., additional, Recchia, F., additional, Tostevin, J. A., additional, Wadsworth, R., additional, and Weisshaar, D., additional

Published
2022
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243. Can the neutron-capture cross sections be measured with Coulomb dissociation?

Author

Horváth, Á., Ieki, K., Kiss, Á., Galonsky, A., Thoennessen, M., Baumann, T., Bazin, D., Bertulani, C. A., Bordeanu, C., Carlin, N., Csanád, M., Deák, F., DeYoung, P., Frank, N., Fukuchi, T., Fülöp, Zs., Gade, A., Galaviz, D., Hoffman, C., Izsák, R., Peters, W. A., Schelin, H., Schiller, A., Sugo, R., Seres, Z., Veres, G. I., Fülöp, Zsolt, editor, Gyürky, György, editor, and Somorjai, Endre, editor

Published
2006
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245. First measurement of 60Ge $\beta$-decay

Author

Ciemny, A. A., Dominik, W., Ginter, T., Grzywacz, R., Janas, Z., Kuich, M., Mazzocchi, C., Miernik, K., Pfützner, M., Pomorski, M., Bazin, D., Baumann, T., Bezbakh, A., Crider, B. P., Ćwiok, M., Go, S., Kamiński, G., Kolos, K., Korgul, A., Kwan, E., Liddick, S. N., Paulauskas, S. V., Pereira, J., Rykaczewski, K. P., Sumithrarachchi, C., and Xiao, Y.

Published
2016
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246. Angle-integrated measurements of the 26Al (d, n)27Si reaction cross section: a probe of spectroscopic factors and astrophysical resonance strengths

Author

Kankainen, A., Woods, P. J., Nunes, F., Langer, C., Schatz, H., Bader, V., Baugher, T., Bazin, D., Brown, B. A., Browne, J., Doherty, D. T., Estrade, A., Gade, A., Kontos, A., Lotay, G., Meisel, Z., Montes, F., Noji, S., Perdikakis, G., Pereira, J., Recchia, F., Redpath, T., Stroberg, R., Scott, M., Seweryniak, D., Stevens, J., Weisshaar, D., Wimmer, K., and Zegers, R.

Published
2016
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247. Evidence of a Near-Threshold Resonance in B11 Relevant to the β -Delayed Proton Emission of Be11

Author

Ayyad, Y., primary, Mittig, W., additional, Tang, T., additional, Olaizola, B., additional, Potel, G., additional, Rijal, N., additional, Watwood, N., additional, Alvarez-Pol, H., additional, Bazin, D., additional, Caamaño, M., additional, Chen, J., additional, Cortesi, M., additional, Fernández-Domínguez, B., additional, Giraud, S., additional, Gueye, P., additional, Heinitz, S., additional, Jain, R., additional, Kay, B. P., additional, Maugeri, E. A., additional, Monteagudo, B., additional, Ndayisabye, F., additional, Paneru, S. N., additional, Pereira, J., additional, Rubino, E., additional, Santamaria, C., additional, Schumann, D., additional, Surbrook, J., additional, Wagner, L., additional, Zamora, J. C., additional, and Zelevinsky, V., additional

Published
2022
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248. Experimental study of the isomeric state in N16 using the Ng,m16(d,He3) reaction

Author

Tang, T. L., primary, Hoffman, C. R., additional, Kay, B. P., additional, Tolstukhin, I. A., additional, Almaraz-Calderon, S., additional, Asher, B. W., additional, Avila, M. L., additional, Ayyad, Y., additional, Brown, K. W., additional, Bazin, D., additional, Chen, J., additional, Chipps, K. A., additional, Copp, P. A., additional, Hall, M., additional, Jayatissa, H., additional, Ong, H. J., additional, Santiago-Gonzalez, D., additional, Sharp, D. K., additional, Song, J., additional, Stolze, S., additional, Wilson, G. L., additional, and Wu, J., additional

Published
2022
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250. Evidence of a Near-Threshold Resonance in ^{11}B Relevant to the β-Delayed Proton Emission of ^{11}Be

Author

Ayyad, Y., Mittig, W., Tang, T., Olaizola, B., Potel, G., Rijal, N., Watwood, N., Alvarez-Pol, H., Bazin, D., Caamaño, M., Chen, J., Cortesi, M., Fernández-Domínguez, B., Giraud, S., Gueye, P., Heinitz, S., Jain, R., Kay, B. P., Maugeri, E. A., Monteagudo, B., Ndayisabye, F., Paneru, S. N., Pereira, J., Rubino, E., Santamaria, C., Schumann, D., Surbrook, J., Wagner, L., Zamora, J. C., and Zelevinsky, V.

Subjects
Nuclear Theory, Physics::Accelerator Physics, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

A narrow near-threshold proton-emitting resonance (E_{x}=11.4 MeV, J^{π}=1/2^{+}, and Γ_{p}=4.4 keV) was directly observed in ^{11}B via proton resonance scattering. This resonance was previously inferred in the β-delayed proton emission of the neutron halo nucleus ^{11}Be. The good agreement between both experimental results serves as a ground to confirm the existence of such exotic decay and the particular behavior of weakly bound nuclei coupled to the continuum. R-matrix analysis shows a sizable partial decay width for both, proton and α (Γ_{α}=11 keV) emission channels.

Published
2022

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