dc.creator |
Abrahamyan, S. |
|
dc.creator |
Ahmed, Z. |
|
dc.creator |
Allada, K. |
|
dc.creator |
Anez, D. |
|
dc.creator |
Averett, T. |
|
dc.creator |
Barbieri, A. |
|
dc.creator |
Bartlett, K. |
|
dc.creator |
Beacham, J. |
|
dc.creator |
Bono, J |
|
dc.creator |
Boyce, J.R. |
|
dc.date.accessioned |
2013-08-28T14:10:55Z |
|
dc.date.available |
2013-08-28T14:10:55Z |
|
dc.date.issued |
2011-11 |
|
dc.identifier.issn |
0031-9007 |
|
dc.identifier.uri |
http://library2.smu.ca/xmlui/handle/01/25105 |
|
dc.description |
Publisher's version/PDF |
|
dc.description.abstract |
We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling [alpha] 'to electrons. Such a particle [Alpha] can be produced in electron-nucleus fixed-target scattering and then decay to an e[superscript +] e[superscript -] pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175–250 MeV, found no evidence for an [Alpha] --> e[superscript +] e[superscript -] reaction, and set an upper limit of [alpha]/[alpha] = 10[superscript -6]. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces. |
en_CA |
dc.description.provenance |
Submitted by Trish Grelot (trish.grelot@smu.ca) on 2013-08-28T14:10:55Z
No. of bitstreams: 1
anez_d_article_2011.pdf: 370359 bytes, checksum: 50085be59a91aa86cc543c97d465ed2d (MD5) |
en |
dc.description.provenance |
Made available in DSpace on 2013-08-28T14:10:55Z (GMT). No. of bitstreams: 1
anez_d_article_2011.pdf: 370359 bytes, checksum: 50085be59a91aa86cc543c97d465ed2d (MD5)
Previous issue date: 2011 |
en |
dc.language.iso |
en |
en_CA |
dc.publisher |
American Physical Society |
en_CA |
dc.relation.uri |
http://dx.doi.org/10.1103/PhysRevLett.107.191804 |
|
dc.rights |
Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user. |
|
dc.subject.lcsh |
Bosons |
|
dc.subject.lcsh |
Electron-nucleus scattering |
|
dc.subject.lcsh |
Quantum electrodynamics |
|
dc.title |
Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment |
en_CA |
dc.type |
Text |
en_CA |
dcterms.bibliographicCitation |
Physical Review Letters 107, 191804. (2011) |
|
Copyright statement:
Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.