A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV
A study of the channel e+e- → μ+μ-γISR, where γISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies (√s′) below the Z0 peak is obtained by using the events with relatively ha...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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1997
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| _version_ | 1797067716018831360 |
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| author | Abreu, P Adam, W Adye, T Ajinenko, I Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbi, M Barbiellini, G Bardin, D Barker, G Baroncelli, A |
| author_facet | Abreu, P Adam, W Adye, T Ajinenko, I Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbi, M Barbiellini, G Bardin, D Barker, G Baroncelli, A |
| author_sort | Abreu, P |
| collection | OXFORD |
| description | A study of the channel e+e- → μ+μ-γISR, where γISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies (√s′) below the Z0 peak is obtained by using the events with relatively hard initial state radiative photon(s) (Eγ > 1 GeV). The differential cross-section as a function of the muon polar production angle is also determined in order to extract the forward-backward asymmetries for the reaction e+e- → μ+μ- at energies √s′ between 20 and 87 GeV. The ratio of the helicity cross-sections σLL+σRR/σRL+σ LR, where the two subscripts stand for the helicities of the incoming e- and outgoing μ- respectively, is extracted from the differential cross-sections in order to test the Standard Model and to look for new physics near 80 GeV. No deviations from the Standard Model were found. © Springer-Verlag 1997. |
| first_indexed | 2024-03-06T22:00:17Z |
| format | Journal article |
| id | oxford-uuid:4e587f1c-26fa-4a85-a1a6-f8167e15c9f3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:00:17Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:4e587f1c-26fa-4a85-a1a6-f8167e15c9f32022-03-26T16:00:40ZA study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4e587f1c-26fa-4a85-a1a6-f8167e15c9f3EnglishSymplectic Elements at Oxford1997Abreu, PAdam, WAdye, TAjinenko, IAlekseev, GAlemany, RAllport, PAlmehed, SAmaldi, UAmato, SAndersson, PAndreazza, AAntilogus, PApel, WAsman, BAugustin, JAugustinus, ABaillon, PBambade, PBarao, FBarbi, MBarbiellini, GBardin, DBarker, GBaroncelli, AA study of the channel e+e- → μ+μ-γISR, where γISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies (√s′) below the Z0 peak is obtained by using the events with relatively hard initial state radiative photon(s) (Eγ > 1 GeV). The differential cross-section as a function of the muon polar production angle is also determined in order to extract the forward-backward asymmetries for the reaction e+e- → μ+μ- at energies √s′ between 20 and 87 GeV. The ratio of the helicity cross-sections σLL+σRR/σRL+σ LR, where the two subscripts stand for the helicities of the incoming e- and outgoing μ- respectively, is extracted from the differential cross-sections in order to test the Standard Model and to look for new physics near 80 GeV. No deviations from the Standard Model were found. © Springer-Verlag 1997. |
| spellingShingle | Abreu, P Adam, W Adye, T Ajinenko, I Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbi, M Barbiellini, G Bardin, D Barker, G Baroncelli, A A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title | A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title_full | A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title_fullStr | A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title_full_unstemmed | A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title_short | A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV |
| title_sort | study of the reaction e e gt mu mu gamma isr at lep and search for new physics at annihilation energies near 80 gev |
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