Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments

LUNA Collaboration; J  Cruz; Z  Fulop; G  Gyurky; F  Raiola; A  Di Leva; B  Limata; M  Fonseca; H  Luis; D  Schurmann; M  Aliotta; H W  Becker; A P  Jesus; K U  Kettner; J P  Ribeiro; C  Rolfs; M  Romano; E  Somorjai; F  Strieder

doi:10.1016/j.physletb.2005.08.036

Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments

LUNA Collaboration, J Cruz, Z Fulop, G Gyurky, F Raiola, A Di Leva, B Limata, M Fonseca, H Luis, D Schurmann, M Aliotta, H W Becker, A P Jesus, K U Kettner, J P Ribeiro, C Rolfs, M Romano, E Somorjai, F Strieder

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

The electron screening in the Li-7(p, alpha)alpha reaction has been studied at E-p = 30 to 100 keV for different environments: Li2WO4 insulator, Li metal, and PdLi alloys. For the insulator a screening potential energy of U-e = 185 +/- 150 eV was observed, consistent with previous work and the atomic adiabatic limit. However, for the Li metal and the PdLi alloys we find large values of U-e = 1280 +/- 60 and 3790 +/- 330 eV, respectively: the values can be explained by the plasma model of Debye applied to the quasi-free metallic electrons in these samples. Similar results have been found for the Li-6(p, alpha)He-3 reaction supporting the hypothesis of the isotopic independence of the electron screening effect. The data together with previous studies of d(d, p)t and Be-9(p, alpha)Li-6 in metals verify the Debye model scaling U-e proportional to Z(t) (charge number of target). (c) 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	Physics Letters B
Volume	624
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2005.08.036
Publication status	Published - 29 Sept 2005

Keywords / Materials (for Non-textual outputs)

FUSION REACTIONS
S(E) FACTOR
BOMBARDMENT
METALS

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10.1016/j.physletb.2005.08.036

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LUNA Collaboration, Cruz, J., Fulop, Z., Gyurky, G., Raiola, F., Di Leva, A., Limata, B., Fonseca, M., Luis, H., Schurmann, D., Aliotta, M., Becker, H. W., Jesus, A. P., Kettner, K. U., Ribeiro, J. P., Rolfs, C., Romano, M., Somorjai, E., & Strieder, F. (2005). Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments. Physics Letters B, 624(3-4), 181-185. https://doi.org/10.1016/j.physletb.2005.08.036

@article{6a0b0810e8bc400c82e2902cd8224790,

title = "Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments",

abstract = "The electron screening in the Li-7(p, alpha)alpha reaction has been studied at E-p = 30 to 100 keV for different environments: Li2WO4 insulator, Li metal, and PdLi alloys. For the insulator a screening potential energy of U-e = 185 +/- 150 eV was observed, consistent with previous work and the atomic adiabatic limit. However, for the Li metal and the PdLi alloys we find large values of U-e = 1280 +/- 60 and 3790 +/- 330 eV, respectively: the values can be explained by the plasma model of Debye applied to the quasi-free metallic electrons in these samples. Similar results have been found for the Li-6(p, alpha)He-3 reaction supporting the hypothesis of the isotopic independence of the electron screening effect. The data together with previous studies of d(d, p)t and Be-9(p, alpha)Li-6 in metals verify the Debye model scaling U-e proportional to Z(t) (charge number of target). (c) 2005 Elsevier B.V. All rights reserved.",

keywords = "FUSION REACTIONS, S(E) FACTOR, BOMBARDMENT, METALS",

author = "{LUNA Collaboration} and J Cruz and Z Fulop and G Gyurky and F Raiola and {Di Leva}, A and B Limata and M Fonseca and H Luis and D Schurmann and M Aliotta and Becker, {H W} and Jesus, {A P} and Kettner, {K U} and Ribeiro, {J P} and C Rolfs and M Romano and E Somorjai and F Strieder",

year = "2005",

month = sep,

day = "29",

doi = "10.1016/j.physletb.2005.08.036",

language = "English",

volume = "624",

pages = "181--185",

journal = "Physics Letters B",

issn = "0370-2693",

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LUNA Collaboration, Cruz, J, Fulop, Z, Gyurky, G, Raiola, F, Di Leva, A, Limata, B, Fonseca, M, Luis, H, Schurmann, D, Aliotta, M, Becker, HW, Jesus, AP, Kettner, KU, Ribeiro, JP, Rolfs, C, Romano, M, Somorjai, E & Strieder, F 2005, 'Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments', Physics Letters B, vol. 624, no. 3-4, pp. 181-185. https://doi.org/10.1016/j.physletb.2005.08.036

TY - JOUR

T1 - Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments

AU - LUNA Collaboration

AU - Cruz, J

AU - Fulop, Z

AU - Gyurky, G

AU - Raiola, F

AU - Di Leva, A

AU - Limata, B

AU - Fonseca, M

AU - Luis, H

AU - Schurmann, D

AU - Aliotta, M

AU - Becker, H W

AU - Jesus, A P

AU - Kettner, K U

AU - Ribeiro, J P

AU - Rolfs, C

AU - Romano, M

AU - Somorjai, E

AU - Strieder, F

PY - 2005/9/29

Y1 - 2005/9/29

N2 - The electron screening in the Li-7(p, alpha)alpha reaction has been studied at E-p = 30 to 100 keV for different environments: Li2WO4 insulator, Li metal, and PdLi alloys. For the insulator a screening potential energy of U-e = 185 +/- 150 eV was observed, consistent with previous work and the atomic adiabatic limit. However, for the Li metal and the PdLi alloys we find large values of U-e = 1280 +/- 60 and 3790 +/- 330 eV, respectively: the values can be explained by the plasma model of Debye applied to the quasi-free metallic electrons in these samples. Similar results have been found for the Li-6(p, alpha)He-3 reaction supporting the hypothesis of the isotopic independence of the electron screening effect. The data together with previous studies of d(d, p)t and Be-9(p, alpha)Li-6 in metals verify the Debye model scaling U-e proportional to Z(t) (charge number of target). (c) 2005 Elsevier B.V. All rights reserved.

AB - The electron screening in the Li-7(p, alpha)alpha reaction has been studied at E-p = 30 to 100 keV for different environments: Li2WO4 insulator, Li metal, and PdLi alloys. For the insulator a screening potential energy of U-e = 185 +/- 150 eV was observed, consistent with previous work and the atomic adiabatic limit. However, for the Li metal and the PdLi alloys we find large values of U-e = 1280 +/- 60 and 3790 +/- 330 eV, respectively: the values can be explained by the plasma model of Debye applied to the quasi-free metallic electrons in these samples. Similar results have been found for the Li-6(p, alpha)He-3 reaction supporting the hypothesis of the isotopic independence of the electron screening effect. The data together with previous studies of d(d, p)t and Be-9(p, alpha)Li-6 in metals verify the Debye model scaling U-e proportional to Z(t) (charge number of target). (c) 2005 Elsevier B.V. All rights reserved.

KW - FUSION REACTIONS

KW - S(E) FACTOR

KW - BOMBARDMENT

KW - METALS

U2 - 10.1016/j.physletb.2005.08.036

DO - 10.1016/j.physletb.2005.08.036

M3 - Article

SN - 0370-2693

VL - 624

SP - 181

EP - 185

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Electron screening in Li-7(p, alpha)alpha and Li-6(p, alpha)He-3 for different environments

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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