Published April 9, 2015
| Published + Submitted
Journal Article
Open
Measurement of the production cross section ratio σ(_(χb2)(1P))/σ(χ_(b1)(1P)) in pp collisions at √s = 8 TeV
Abstract
A measurement of the production cross section ratio σ(χ_(b2)(1P))/σ(χ_(b1)(1P)) is presented. The χ_(b1)(1P) and χ_(b2)(1P) bottomonium states, promptly produced in pp collisions at √s=8 TeV, are detected by the CMS experiment at the CERN LHC through their radiative decays χb_(1,2)(1P)→ϒ(1S)+γ. The emitted photons are measured through their conversion to e^+e^− pairs, whose reconstruction allows the two states to be resolved. The ϒ(1S) is measured through its decay to two muons. An event sample corresponding to an integrated luminosity of 20.7 fb^(−1) is used to measure the cross section ratio in a phase-space region defined by the photon pseudorapidity, |η^γ|<1.0; the ϒ(1S) rapidity, |y^ϒ|<1.5; and the ϒ(1S) transverse momentum, 7
Additional Information
© 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license. Received 20 October 2014. Received in revised form 12 February 2015. Accepted 19 February 2015. Available online 24 February 2015. Editor: M. Doser. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERCIUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS programme of Foundation For Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.Attached Files
Published - 1-s2.0-S0370269315001392-main.pdf
Submitted - 1409.5761v2.pdf
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Additional details
- Eprint ID
- 57565
- Resolver ID
- CaltechAUTHORS:20150515-104921751
- BMWFW and FWF (Austria)
- FNRS and FWO (Belgium)
- CNPq, CAPES, FAPERJ, and FAPESP (Brazil)
- MES (Bulgaria)
- CERN
- CAS, MoST, and NSFC (China)
- COLCIENCIAS (Colombia)
- MSES and CSF (Croatia)
- RPF (Cyprus)
- MoER, ERC IUT, and ERDF (Estonia)
- Academy of Finland, MEC, and HIP (Finland)
- CEA and CNRS/IN2P3 (France)
- Bundesministerium für Bildung und Forschung (BMBF)
- GSRT (Greece)
- OTKA and NIH (Hungary)
- DAE and DST (India)
- IPM (Iran)
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare (INFN)
- NRF and WCU (Republic of Korea)
- LAS (Lithuania)
- MOE and UM (Malaysia)
- CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE and NSC (Poland)
- Fundação para a Ciência e a Tecnologia (FCT)
- JINR (Dubna)
- MON, RosAtom, RAS, and RFBR (Russia)
- MESTD (Serbia)
- SEIDI and CPAN (Spain)
- Swiss Funding Agencies (Switzerland)
- MST (Tapei)
- ThEPCenter, IPST, STAR, and NSTDA (Thailand)
- TUBITAK and TAEK (Turkey)
- NASU and SFFR (Ukraine)
- Science and Technology Facilities Council (STFC)
- Department of Energy (DOE)
- NSF
- Marie-Curie programme and the European Research Council and EPLANET (European Union)
- Leventis Foundation
- Alfred P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation à la Recherche dans l'índustrie et dans l'Ágriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
- Council of Science and Industrial Research, India
- HOMING PLUS programme of Foundation for Polish Science cofinanced from European Union
- Regional Development Fund
- Compagnia di San Paolo (Torino)
- Consorzio per la Fisica (Trieste)
- MIUR project 20108T4XTM (Italy)
- Thalis and Aristeia programmes cofinanced by EU-ESF
- Greek NSRF
- Qatar National Research Fund National Priorities Research Program
- Deutsche Forschungsgemeinschaft (DFG)
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (Germany)
- Created
-
2015-05-15Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- CMS@Caltech