Cargando…
The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI
The photon radiation in the initial state lowers the energy available for the e$^+$e$^-$ collisions; this effect is particularly important at LEP2 energies (above the mass of the Z boson). Being aligned to the beam direction, such initial state radiation is mostly undetected. This article describes...
| Autores principales: | , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
1998
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0168-9002(98)01394-1 http://cds.cern.ch/record/364737 |
| _version_ | 1780892855000104960 |
|---|---|
| author | Abreu, P. De Angelis, A. Della Ricca, G. Fassouliotis, D. Grefrath, A. Kjaer, N. Henriques, R.P. Mulders, M. Pimenta, M. Vitale, L. |
| author_facet | Abreu, P. De Angelis, A. Della Ricca, G. Fassouliotis, D. Grefrath, A. Kjaer, N. Henriques, R.P. Mulders, M. Pimenta, M. Vitale, L. |
| author_sort | Abreu, P. |
| collection | CERN |
| description | The photon radiation in the initial state lowers the energy available for the e$^+$e$^-$ collisions; this effect is particularly important at LEP2 energies (above the mass of the Z boson). Being aligned to the beam direction, such initial state radiation is mostly undetected. This article describes the procedure used by the DELPHI experiment at LEP to estimate the effective centre-of-mass energy in hadronic events collected at energies above the Z peak. Typical resolutions ranging from 2 to 3 GeV on the effective center-of-mass energy are achieved, depending on the event topology. |
| id | cern-364737 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1998 |
| record_format | invenio |
| spelling | cern-3647372021-11-03T06:36:17Zdoi:10.1016/S0168-9002(98)01394-1http://cds.cern.ch/record/364737engAbreu, P.De Angelis, A.Della Ricca, G.Fassouliotis, D.Grefrath, A.Kjaer, N.Henriques, R.P.Mulders, M.Pimenta, M.Vitale, L.The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHIDetectors and Experimental TechniquesThe photon radiation in the initial state lowers the energy available for the e$^+$e$^-$ collisions; this effect is particularly important at LEP2 energies (above the mass of the Z boson). Being aligned to the beam direction, such initial state radiation is mostly undetected. This article describes the procedure used by the DELPHI experiment at LEP to estimate the effective centre-of-mass energy in hadronic events collected at energies above the Z peak. Typical resolutions ranging from 2 to 3 GeV on the effective center-of-mass energy are achieved, depending on the event topology.The photon radiation in the initial state lowers the energy available for the e$^+$e$^-$ collisions; this effect is particularly important at LEP2 energies (above the mass of the Z boson). Being aligned to the beam direction, such initial state radiation is mostly undetected. This article describes the procedure used by the DELPHI experiment at LEP to estimate the effective centre-of-mass energy in hadronic events collected at energies above the Z peak. Typical resolutions ranging from 2 to 3 GeV on the effective center-of-mass energy are achieved, depending on the event topology.hep-ex/9809008CERN-OPEN-98-026CERN-OPEN-98-026oai:cds.cern.ch:3647371998-09-06 |
| spellingShingle | Detectors and Experimental Techniques Abreu, P. De Angelis, A. Della Ricca, G. Fassouliotis, D. Grefrath, A. Kjaer, N. Henriques, R.P. Mulders, M. Pimenta, M. Vitale, L. The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title | The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title_full | The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title_fullStr | The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title_full_unstemmed | The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title_short | The Estimation of the Effective Centre of Mass Energy in $q\overline{q} \gamma$ Events from DELPHI |
| title_sort | estimation of the effective centre of mass energy in $q\overline{q} \gamma$ events from delphi |
| topic | Detectors and Experimental Techniques |
| url | https://dx.doi.org/10.1016/S0168-9002(98)01394-1 http://cds.cern.ch/record/364737 |
| work_keys_str_mv | AT abreup theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT deangelisa theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT dellariccag theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT fassouliotisd theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT grefratha theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT kjaern theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT henriquesrp theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT muldersm theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT pimentam theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT vitalel theestimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT abreup estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT deangelisa estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT dellariccag estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT fassouliotisd estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT grefratha estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT kjaern estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT henriquesrp estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT muldersm estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT pimentam estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi AT vitalel estimationoftheeffectivecentreofmassenergyinqoverlineqgammaeventsfromdelphi |