Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV
Аутори
Khachatryan, V.Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Reković, Vladimir
Milenović, Predrag
CMS Collaboration (ukupan broj autora: 2275)
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The results of a first search for CP violation in the production and decay of top quark-antiquark (t (t) over bar) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at root s = 8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7fb(-1). Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with t (t) over bar production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.
Кључне речи:
CP violation / Hadron-Hadron scattering (experiments) / Top physicsИзвор:
Journal of High Energy Physics, 2017, 3Финансирање / пројекти:
- BMWFW, FWF (Austria), FNRS, FWO (Belgium), CNPq, CAPES, FAPERJ, FAPESP (Brazil), MES (Bulgaria), CERN, CAS, MoST, NSFC (China), COLCIENCIAS (Colombia), MSES, CSF (Croatia), RPF (Cyprus), SENESCYT (Ecuador), MoER, ERC IUT, ERDF (Estonia), Academy of Finland, MEC, HIP (Finland), CEA, CNRS/IN2P3 (France), BMBF, Germany, DFG, HGF (Germany), GSRT (Greece), OTKA, NIH (Hungary), DAE, DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), MSIP, NRF (Republic of Korea), LAS (Lithuania), MOE, UM (Malaysia), BUAP, CINVESTAV, CONACYT, LNS, SEP, UASLP-FAI (Mexico), MBIE (New Zealand), PAEC (Pakistan), MSHE, NSC (Poland), FCT (Portugal), JINR (Dubna), MON, RosAtom, RAS, RFBR (Russia), MESTD (Serbia), SEIDI, CPAN (Spain), Swiss Funding Agencies (Switzerland), MST (Taipei), ThEPCenter, IPST, STAR, NSTDA (Thailand), TUBITAK, TAEK (Turkey), NASU, SFFR (Ukraine), STFC (United Kingdom), DOE, NSF (U.S.A), Marie-Curie program, European Research Council, EPLANET (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (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 program of the Foundation for Polish Science, European Union, Regional Development Fund, Mobility Plus program of the Ministry of Science and Higher Education, National Science Center (Poland) [2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, 2012/07/E/ST2/01406], Thalis and Aristeia programs, EU-ESF, Greek NSRF, National Priorities Research Program by Qatar National Research Fund, Programa Clarffi-COFUND del Principado de Asturias, Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University, Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845]
DOI: 10.1007/JHEP03(2017)101
ISSN: 1029-8479
WoS: 000397705400005
Scopus: 2-s2.0-85016311144
Колекције
Институција/група
VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Ćirković, Predrag AU - Devetak, Damir AU - Đorđević, Miloš AU - Milošević, Jovan AU - Reković, Vladimir AU - Milenović, Predrag PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1485 AB - The results of a first search for CP violation in the production and decay of top quark-antiquark (t (t) over bar) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at root s = 8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7fb(-1). Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with t (t) over bar production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model. T2 - Journal of High Energy Physics T1 - Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV IS - 3 DO - 10.1007/JHEP03(2017)101 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Reković, Vladimir and Milenović, Predrag", year = "2017", abstract = "The results of a first search for CP violation in the production and decay of top quark-antiquark (t (t) over bar) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at root s = 8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7fb(-1). Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with t (t) over bar production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.", journal = "Journal of High Energy Physics", title = "Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV", number = "3", doi = "10.1007/JHEP03(2017)101" }
Khachatryan, V., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J., Reković, V.,& Milenović, P.. (2017). Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV. in Journal of High Energy Physics(3). https://doi.org/10.1007/JHEP03(2017)101
Khachatryan V, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Reković V, Milenović P. Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV. in Journal of High Energy Physics. 2017;(3). doi:10.1007/JHEP03(2017)101 .
Khachatryan, V., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Reković, Vladimir, Milenović, Predrag, "Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV" in Journal of High Energy Physics, no. 3 (2017), https://doi.org/10.1007/JHEP03(2017)101 . .