Journal article 1060 views
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories
Graham Shore
Nucl. Phys. B, Volume: 712, Issue: 1-2, Pages: 411 - 429
Swansea University Author: Graham Shore
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DOI (Published version): 10.1016/j.nuclphysb.2005.01.026
Abstract
The sum rule for the first moment of the polarised (virtual) photon structure function g1γ(x,Q2;K2) is revisited in the light of proposals for future e+e− colliders. The sum rule exhibits an array of phenomena characteristic of QCD: for real photons (K2 = 0) electromagnetic gauge invariance constrai...
| Published in: | Nucl. Phys. B |
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| Published: |
2005
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http://arxiv.org/abs/hep-ph/0412192 |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa17505 |
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<?xml version="1.0"?><rfc1807><datestamp>2014-03-20T23:48:39.9642452</datestamp><bib-version>v2</bib-version><id>17505</id><entry>2014-03-20</entry><title>The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories</title><swanseaauthors><author><sid>28a24f55687c82d6f3ee378ead3cf234</sid><firstname>Graham</firstname><surname>Shore</surname><name>Graham Shore</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2014-03-20</date><deptcode>FGSEN</deptcode><abstract>The sum rule for the first moment of the polarised (virtual) photon structure function g1γ(x,Q2;K2) is revisited in the light of proposals for future e+e− colliders. The sum rule exhibits an array of phenomena characteristic of QCD: for real photons (K2 = 0) electromagnetic gauge invariance constrains the first moment to vanish; the limit for asymptotic photon virtuality (m2ρ ≪ K2 ≪ Q2) is governed by the electromagnetic UA(1) axial anomaly and the approach to asymptopia by the gluonic anomaly; for intermediate values of K2, it reflects the realisation of chiral symmetry and is determined by the off-shell radiative couplings of the pseudoscalar mesons; finally, like many polarisation phenomena in QCD, the first moment of g1γ involves the gluon topological susceptibility. In this paper, we review the original sum rule proposed by Narison, Shore and Veneziano and extend the relation with pseudoscalar mesons. The possibility of measuring the sum rule in future polarised e+e− colliders is then considered in detail, focusing on the International Linear Collider (ILC) and high luminosity B factories. We conclude that all the above features of the sum rule should be accessible at a polarised collider with the characteristics of SuperKEKB.</abstract><type>Journal Article</type><journal>Nucl. Phys. B</journal><volume>712</volume><journalNumber>1-2</journalNumber><paginationStart>411</paginationStart><paginationEnd>429</paginationEnd><publisher/><keywords/><publishedDay>18</publishedDay><publishedMonth>4</publishedMonth><publishedYear>2005</publishedYear><publishedDate>2005-04-18</publishedDate><doi>10.1016/j.nuclphysb.2005.01.026</doi><url>http://arxiv.org/abs/hep-ph/0412192</url><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2014-03-20T23:48:39.9642452</lastEdited><Created>2014-03-20T22:13:51.7721942</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Physics</level></path><authors><author><firstname>Graham</firstname><surname>Shore</surname><order>1</order></author></authors><documents/><OutputDurs/></rfc1807> |
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2014-03-20T23:48:39.9642452 v2 17505 2014-03-20 The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories 28a24f55687c82d6f3ee378ead3cf234 Graham Shore Graham Shore true false 2014-03-20 FGSEN The sum rule for the first moment of the polarised (virtual) photon structure function g1γ(x,Q2;K2) is revisited in the light of proposals for future e+e− colliders. The sum rule exhibits an array of phenomena characteristic of QCD: for real photons (K2 = 0) electromagnetic gauge invariance constrains the first moment to vanish; the limit for asymptotic photon virtuality (m2ρ ≪ K2 ≪ Q2) is governed by the electromagnetic UA(1) axial anomaly and the approach to asymptopia by the gluonic anomaly; for intermediate values of K2, it reflects the realisation of chiral symmetry and is determined by the off-shell radiative couplings of the pseudoscalar mesons; finally, like many polarisation phenomena in QCD, the first moment of g1γ involves the gluon topological susceptibility. In this paper, we review the original sum rule proposed by Narison, Shore and Veneziano and extend the relation with pseudoscalar mesons. The possibility of measuring the sum rule in future polarised e+e− colliders is then considered in detail, focusing on the International Linear Collider (ILC) and high luminosity B factories. We conclude that all the above features of the sum rule should be accessible at a polarised collider with the characteristics of SuperKEKB. Journal Article Nucl. Phys. B 712 1-2 411 429 18 4 2005 2005-04-18 10.1016/j.nuclphysb.2005.01.026 http://arxiv.org/abs/hep-ph/0412192 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2014-03-20T23:48:39.9642452 2014-03-20T22:13:51.7721942 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Graham Shore 1 |
| title |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| spellingShingle |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories Graham Shore |
| title_short |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| title_full |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| title_fullStr |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| title_full_unstemmed |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| title_sort |
The Polarised photon g(1) gamma sum rule at the linear collider and high luminosity B factories |
| author_id_str_mv |
28a24f55687c82d6f3ee378ead3cf234 |
| author_id_fullname_str_mv |
28a24f55687c82d6f3ee378ead3cf234_***_Graham Shore |
| author |
Graham Shore |
| author2 |
Graham Shore |
| format |
Journal article |
| container_title |
Nucl. Phys. B |
| container_volume |
712 |
| container_issue |
1-2 |
| container_start_page |
411 |
| publishDate |
2005 |
| institution |
Swansea University |
| doi_str_mv |
10.1016/j.nuclphysb.2005.01.026 |
| college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
| department_str |
School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics |
| url |
http://arxiv.org/abs/hep-ph/0412192 |
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0 |
| active_str |
0 |
| description |
The sum rule for the first moment of the polarised (virtual) photon structure function g1γ(x,Q2;K2) is revisited in the light of proposals for future e+e− colliders. The sum rule exhibits an array of phenomena characteristic of QCD: for real photons (K2 = 0) electromagnetic gauge invariance constrains the first moment to vanish; the limit for asymptotic photon virtuality (m2ρ ≪ K2 ≪ Q2) is governed by the electromagnetic UA(1) axial anomaly and the approach to asymptopia by the gluonic anomaly; for intermediate values of K2, it reflects the realisation of chiral symmetry and is determined by the off-shell radiative couplings of the pseudoscalar mesons; finally, like many polarisation phenomena in QCD, the first moment of g1γ involves the gluon topological susceptibility. In this paper, we review the original sum rule proposed by Narison, Shore and Veneziano and extend the relation with pseudoscalar mesons. The possibility of measuring the sum rule in future polarised e+e− colliders is then considered in detail, focusing on the International Linear Collider (ILC) and high luminosity B factories. We conclude that all the above features of the sum rule should be accessible at a polarised collider with the characteristics of SuperKEKB. |
| published_date |
2005-04-18T03:20:13Z |
| _version_ |
1763750563969761280 |
| score |
11.035655 |