Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electro...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2014-01, Vol.343 (6168), p.269-272 |
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| creator | Baron, J. Campbell, W. C. DeMille, D. Doyle, J. M. Gabrielse, G. Gurevich, Y. V. Hess, P. W. Hutzler, N. R. Kirilov, E. Kozyryev, I. O'Leary, B. R. Panda, C. D. Parsons, M. F. Petrik, E. S. Spaun, B. Vutha, A. C. West, A. D. |
| description | The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10⁻²⁷ to 10⁻³⁰ e.cm. The EDM is an asymmetric charge distribution along the electron spin $(\vec s)$ that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) × 10⁻²⁹ e.cm. This corresponds to an upper limit of |de| |
| doi_str_mv | 10.1126/science.1248213 |
| format | Article |
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C. ; DeMille, D. ; Doyle, J. M. ; Gabrielse, G. ; Gurevich, Y. V. ; Hess, P. W. ; Hutzler, N. R. ; Kirilov, E. ; Kozyryev, I. ; O'Leary, B. R. ; Panda, C. D. ; Parsons, M. F. ; Petrik, E. S. ; Spaun, B. ; Vutha, A. C. ; West, A. D.</creator><creatorcontrib>Baron, J. ; Campbell, W. C. ; DeMille, D. ; Doyle, J. M. ; Gabrielse, G. ; Gurevich, Y. V. ; Hess, P. W. ; Hutzler, N. R. ; Kirilov, E. ; Kozyryev, I. ; O'Leary, B. R. ; Panda, C. D. ; Parsons, M. F. ; Petrik, E. S. ; Spaun, B. ; Vutha, A. C. ; West, A. D. ; ACME Collaboration ; The ACME Collaboration</creatorcontrib><description>The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10⁻²⁷ to 10⁻³⁰ e.cm. The EDM is an asymmetric charge distribution along the electron spin $(\vec s)$ that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) × 10⁻²⁹ e.cm. This corresponds to an upper limit of |de| <8.7 × 10⁻²⁹ e.cm with 90% confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1248213</identifier><identifier>PMID: 24356114</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Electric dipole moment ; Electric fields ; Electron transfer ; Electrons ; Lasers ; Magnetic fields ; Molecules ; Particle physics ; Physics ; Precession ; Stark effect ; Systematic errors</subject><ispartof>Science (American Association for the Advancement of Science), 2014-01, Vol.343 (6168), p.269-272</ispartof><rights>Copyright © 2014 American Association for the Advancement of Science</rights><rights>Copyright © 2014, American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c454t-7af195b30346bdb528d37b3adaa58577b580593b70be141d3c951f3de40a9d4f3</citedby><cites>FETCH-LOGICAL-c454t-7af195b30346bdb528d37b3adaa58577b580593b70be141d3c951f3de40a9d4f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/42914668$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/42914668$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,2871,2872,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24356114$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Baron, J.</creatorcontrib><creatorcontrib>Campbell, W. C.</creatorcontrib><creatorcontrib>DeMille, D.</creatorcontrib><creatorcontrib>Doyle, J. M.</creatorcontrib><creatorcontrib>Gabrielse, G.</creatorcontrib><creatorcontrib>Gurevich, Y. V.</creatorcontrib><creatorcontrib>Hess, P. W.</creatorcontrib><creatorcontrib>Hutzler, N. R.</creatorcontrib><creatorcontrib>Kirilov, E.</creatorcontrib><creatorcontrib>Kozyryev, I.</creatorcontrib><creatorcontrib>O'Leary, B. R.</creatorcontrib><creatorcontrib>Panda, C. D.</creatorcontrib><creatorcontrib>Parsons, M. F.</creatorcontrib><creatorcontrib>Petrik, E. S.</creatorcontrib><creatorcontrib>Spaun, B.</creatorcontrib><creatorcontrib>Vutha, A. C.</creatorcontrib><creatorcontrib>West, A. D.</creatorcontrib><creatorcontrib>ACME Collaboration</creatorcontrib><creatorcontrib>The ACME Collaboration</creatorcontrib><title>Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10⁻²⁷ to 10⁻³⁰ e.cm. The EDM is an asymmetric charge distribution along the electron spin $(\vec s)$ that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) × 10⁻²⁹ e.cm. This corresponds to an upper limit of |de| <8.7 × 10⁻²⁹ e.cm with 90% confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.</description><subject>Electric dipole moment</subject><subject>Electric fields</subject><subject>Electron transfer</subject><subject>Electrons</subject><subject>Lasers</subject><subject>Magnetic fields</subject><subject>Molecules</subject><subject>Particle physics</subject><subject>Physics</subject><subject>Precession</subject><subject>Stark effect</subject><subject>Systematic errors</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpdkD1PwzAYhC0EoqUwM4EisbCk9Wccj6iUD6mlAzBHduxAqiQutjPw73HVUCSmV3rvudPpALhEcIoQzma-rE1XminCNMeIHIExgoKlAkNyDMYQkizNIWcjcOb9BsKoCXIKRpgSliFEx-Bl7bRxia2Slfzo6tBrk7y2smnic1m3dUhsl4RPkywaUwZXl8l9vbWNSVa2NV3YGf9U252Dk0o23lwMdwLeHxZv86d0uX58nt8t05IyGlIuKySYIpDQTGnFcK4JV0RqKVnOOFcsh7Gp4lAZRJEmpWCoItpQKIWmFZmA233u1tmv3vhQtLUvTdPIztjeF4gKyDmOKRG9-YdubO-62G5HccEIEiJSsz1VOuu9M1WxdXUr3XeBYLGbuhimLoapo-N6yO1Va_SB_902Ald7YOODdQedYoFoluXkB3EHgt8</recordid><startdate>20140117</startdate><enddate>20140117</enddate><creator>Baron, J.</creator><creator>Campbell, W. 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C. ; DeMille, D. ; Doyle, J. M. ; Gabrielse, G. ; Gurevich, Y. V. ; Hess, P. W. ; Hutzler, N. R. ; Kirilov, E. ; Kozyryev, I. ; O'Leary, B. R. ; Panda, C. D. ; Parsons, M. F. ; Petrik, E. S. ; Spaun, B. ; Vutha, A. C. ; West, A. D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-7af195b30346bdb528d37b3adaa58577b580593b70be141d3c951f3de40a9d4f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Electric dipole moment</topic><topic>Electric fields</topic><topic>Electron transfer</topic><topic>Electrons</topic><topic>Lasers</topic><topic>Magnetic fields</topic><topic>Molecules</topic><topic>Particle physics</topic><topic>Physics</topic><topic>Precession</topic><topic>Stark effect</topic><topic>Systematic errors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baron, J.</creatorcontrib><creatorcontrib>Campbell, W. 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Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), de, in the range of 10⁻²⁷ to 10⁻³⁰ e.cm. The EDM is an asymmetric charge distribution along the electron spin $(\vec s)$ that is also asymmetric under T. Using the polar molecule thorium monoxide, we measured de = (-2.1 ± 3.7stat ± 2.5syst) × 10⁻²⁹ e.cm. This corresponds to an upper limit of |de| <8.7 × 10⁻²⁹ e.cm with 90% confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>24356114</pmid><doi>10.1126/science.1248213</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Electric dipole moment Electric fields Electron transfer Electrons Lasers Magnetic fields Molecules Particle physics Physics Precession Stark effect Systematic errors |
| title | Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron |
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