dc.contributor | Milanés Carreño, Diego Alejandro | |
dc.contributor | Grupo de Partículas FENYX-UN | |
dc.creator | Nuñez Palacio, Rafael David | |
dc.date.accessioned | 2021-05-26T16:27:55Z | |
dc.date.available | 2021-05-26T16:27:55Z | |
dc.date.created | 2021-05-26T16:27:55Z | |
dc.date.issued | 2021-05-12 | |
dc.identifier | https://repositorio.unal.edu.co/handle/unal/79566 | |
dc.identifier | Universidad Nacional de Colombia | |
dc.identifier | Repositorio Institucional Universidad Nacional de Colombia | |
dc.identifier | https://repositorio.unal.edu.co/ | |
dc.description.abstract | We studied the weak three-body $B^0 \rightarrow K^0_s K^+ K^-$ decay at the LHCb experiment in the LHC at CERN. We validated the uncertainty on the CP observables using the current Dalitz plot analyses results from Run 1 and studied the uncertainties expected for Run 2 and Run 3. Using the simulation of the experimental conditions like the B-tagging (flavour of the $B^0$), the detector efficiencies and the number of events for the different data taking conditions, we have determined the expected precision of the CP-violating asymmetries of the flavour specific resonant modes, and we have shown evidence that analysis of the real data for Run 2 and Run 3 data taking periods could provide competitive $A_{cp}$ values compared with some of the actual measurements.
Se estudió la desintegración a tres cuerpos $B^0 \rightarrow K^0_s K^+ K^-$ generada por el experimento LHCb (Large Hadron Collider beauty) en el LHC (Large Hadron Collider) del CERN (Conseil Européen pour la Recherche Nucléaire). Se validaron las incertidumbres en las contribuciones en los observables CP de las resonancias involucradas en los resultados actuales para la primera etapa de funcionamiento del experimento y se estudiaron los resultados esperados para las segunda y tercera etapas. Usando para ello la simulación de las condiciones experimentales como el sabor del $B^0$, las eficiencias del detector y el número de eventos esperados. Se determinó la precisión esperada en las medidas de la asimetría de violación CP para cada resonancia involucrada, y se mostró evidencia de que el análisis de los datos reales correspondientes a las segunda y tercera etapas del experimento podrían aportar medidas competitivas de $A_{cp}$, comparadas con los resultados actuales. | |
dc.description.abstract | Se estudió la desintegración a tres cuerpos B0 → K0s K+K− generada por el experimento LHCb (Large Hadron Collider beauty) en el LHC (Large Hadron Collider) del CERN
(Conseil Européen pour la Recherche Nucl´eaire). Se validaron las incertidumbres en las contribuciones en los observables CP de las resonancias involucradas en los resultados actuales
para la primera etapa de funcionamiento del experimento y se estudiaron los resultados esperados para las segunda y tercera etapas. Usando para ello la simulación de las condiciones experimentales como el sabor del B0 , las eficiencias del detector y el número de eventos esperados. Se determinó la precisión esperada en las medidas de la asimetría de violación CP para cada resonancia involucrada, y se mostró evidencia de que el análisis de los datos reales correspondientes a las segunda y tercera etapas del experimento podrían aportar medidas competitivas de Acp, comparadas con los resultados actuales. | |
dc.language | eng | |
dc.publisher | Universidad Nacional de Colombia | |
dc.publisher | Bogotá - Ciencias - Maestría en Ciencias - Física | |
dc.publisher | Departamento de Física | |
dc.publisher | Facultad de Ciencias | |
dc.publisher | Bogotá | |
dc.publisher | Universidad Nacional de Colombia - Sede Bogotá | |
dc.relation | [1] J. H. Christenson, J. W. Cronin, V. L. Fitch, and R. Turlay, “Evidence for the 2πdecay of thek02meson,”Phys. Rev. Lett., vol. 13, pp. 138–140, Jul 1964. [Online].Available: https://link.aps.org/doi/10.1103/PhysRevLett.13.138 | |
dc.relation | [2] K. o. Abe, “Observation of largeCPviolation in the neutralBmesonsystem,”Phys. Rev. Lett., vol. 87, p. 091802, Aug 2001. [Online]. Available:https://link.aps.org/doi/10.1103/PhysRevLett.87.091802 | |
dc.relation | [3] B. Aubertet al., “Observation ofCPviolation in theb0meson system,”Phys. Rev. Lett., vol. 87, p. 091801, Aug 2001. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevLett.87.091801 | |
dc.relation | [4] M. Kobayashi and T. Maskawa, “CP Violation in the Renormalizable Theory of WeakInteraction,”Prog. Theor. Phys., vol. 49, pp. 652–657, 1973. | |
dc.relation | [5] N. Aghanimet al., “Planck 2018 results. VI. Cosmological parameters,”Astron. As-trophys., vol. 641, p. A6, 2020. | |
dc.relation | [6] A. A. Alves, Jr.et al., “The LHCb Detector at the LHC,”JINST, vol. 3, p. S08005,2008. | |
dc.relation | [7] A. Wuthrich, “Dalitz plots and hadron spectroscopy,” Ph.D. dissertation, Bern U., 2005. | |
dc.relation | [8] Lees, J. P., et al, “Study ofcpviolation in dalitz-plot analyses ofB0→K+K−K0S,B+→K+K−K+, andB+→K0SK0SK+,”Phys. Rev. D, vol. 85, p. 112010, Jun 2012.[Online]. Available: https://link.aps.org/doi/10.1103/PhysRevD.85.112010 | |
dc.relation | [9] Y. Nakahama, et al, “Measurement ofcpviolating asymmetries inB0→K+K−K0Sdecays with a time-dependent dalitz approach,”Phys. Rev. D, vol. 82, p. 073011, Oct2010. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevD.82.073011 | |
dc.relation | [10] Y. Nakahamaet al., “Measurement of CP violating asymmetries inB0−> K+K−K0Sdecays with a time-dependent Dalitz approach,”Phys. Rev., vol. D82, p. 073011, 2010 | |
dc.relation | [11] J. P. Leeset al., “Study of CP violation in Dalitz-plot analyses of B0 —¿K+K-K0(S),B+ —¿K+K-K+, and B+ —¿K0(S)K0(S)K+,”Phys. Rev., vol. D85, p. 112010, 2012. | |
dc.relation | [12] M. Baalouch, E. Ben-Haim, T. Gershon, M. Grabalosa, L. Henry, T. Latham,J. McCarthy, J. Maratas, D. Milanes, S. Monteil, R. Silva Coutinho, and N. Watson,“Dalitz-plot analysis of the decayB0→K0SK+K−,” Apr 2014. [Online]. Available:https://cds.cern.ch/record/1694299 | |
dc.relation | [13] N. Cabibbo, “Unitary symmetry and leptonic decays,”Phys. Rev. Lett., vol. 10, pp.531–533, Jun 1963. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevLett.10.531 | |
dc.relation | [14] M. R ̈ohrken,Time-Dependent CP Violation Measurements: Analyses of NeutralB Meson to Double-Charm Decays at the Japanese Belle Experiment, ser.Springer Theses.Springer International Publishing, 2013. [Online]. Available:https://books.google.com.co/books?id=2Om5BAAAQBAJ | |
dc.relation | [15] L. Wolfenstein, “Parametrization of the kobayashi-maskawa matrix,”Phys. Rev. Lett.,vol. 51, pp. 1945–1947, Nov 1983. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevLett.51.1945 | |
dc.relation | [16] M. Bargiotti, A. Bertin, M. Bruschi, M. Capponi, S. Castro, R. Dona, P. Faccioli,D. Galli, B. Giacobbe, U. Marconi, I. Massa, M. Piccinini, M. Poli, N. Semprini-Cesari,R. Spighi, V. Vagnoni, S. Vecchi, M. Villa, A. Vitale, and A. Zoccoli, “Present knowledgeof the cabibbo-kobayashi-maskawa matrix,”Rivista del Nuovo Cimento, vol. 23, 01 2000. | |
dc.relation | [17] Particle Data Group and others, “Review of Particle Physics,”Progress of Theoreticaland Experimental Physics, vol. 2020, no. 8, 08 2020, 083C01. [Online]. Available:https://doi.org/10.1093/ptep/ptaa104 | |
dc.relation | [18] The CKMfitter Group, “UPDATED RESULTS ON THE CKM MATRIX,”Dic 2019. [Online]. Available: http://ckmfitter.in2p3.fr/www/results/plotssummer19/num/ckmEvalresultssummer19.html | |
dc.relation | [19] O. Steinkamp, “CP violation at LHCb,”J. Phys. Conf. Ser., vol. 455, p. 012036, 2013 | |
dc.relation | [20] I. I. Bigi and A. I. Sanda,CP Violation, 2nd ed. Cambridge University Press, 2009. | |
dc.relation | [21] C.-W. Chiang, M. Gronau, Z. Luo, J. L. Rosner, and D. A. Suprun, “Charmless→BVPdecays using flavor su(3) symmetry,”Phys. Rev. D, vol. 69, p. 034001, Feb 2004.[Online]. Available: https://link.aps.org/doi/10.1103/PhysRevD.69.034001 | |
dc.relation | [22] T. Aaltonenet al., “First Flavor-Tagged Determination of Bounds on Mixing-InducedCP Violation inB0s→J/ψφDecays,”Phys. Rev. Lett., vol. 100, p. 161802, 2008 | |
dc.relation | [23] V. M. Abazovet al., “Measurement ofB0smixing parameters from the flavor-taggeddecayB0s→J/ψφ,”Phys. Rev. Lett., vol. 101, p. 241801, 2008 | |
dc.relation | [24] R. Aaijet al., “Observation of CP Violation in Charm Decays,”Phys. Rev. Lett., vol.122, no. 21, p. 211803, 2019 | |
dc.relation | [25] J. Backet al., “LAURA++: A Dalitz plot fitter,”Comput. Phys. Commun., vol. 231,pp. 198–242, 2018 | |
dc.relation | [26] D. J. Herndon, P. S ̈oding, and R. J. Cashmore, “Generalized isobar modelformalism,”Phys. Rev. D, vol. 11, pp. 3165–3182, Jun 1975. [Online]. Available:https://link.aps.org/doi/10.1103/PhysRevD.11.3165 | |
dc.relation | [27] C. Zemach, “Three-pion decays of unstable particles,”Phys. Rev., vol. 133, pp. B1201–B1220, Mar 1964. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRev.133.B1201 | |
dc.relation | [28] J. Blatt and V. E. Weisskopf,Theoretical nuclear physics, 1952. | |
dc.relation | [29] D. P. O’Hanlon, “Studies ofCP-violation in charmless three-bodyb-hadron decays,” Sep2017, presented 04 Oct 2017. [Online]. Available: https://cds.cern.ch/record/2289593 | |
dc.relation | [30] G. Breit and E. Wigner, “Capture of slow neutrons,”Phys. Rev., vol. 49, pp. 519–531,Apr 1936. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRev.49.519 | |
dc.relation | [31] S. Flatt ́e, “Coupled-channel analysis of theπηand kk systems near kk threshold,”Physics Letters B, vol. 63, no. 2, pp. 224 – 227, 1976. [Online]. Available:http://www.sciencedirect.com/science/article/pii/0370269376906547 | |
dc.relation | [32] M. A. et al, “Resonances inj/ψ→φππandφkk,”Physics Letters B, vol. 607,no. 3, pp. 243 – 253, 2005. [Online]. Available: http://www.sciencedirect.com/science/article/pii/S0370269304017265 | |
dc.relation | [33] H.-Y. Cheng, C.-K. Chua, and A. Soni, “Charmless three-body decays ofbmesons,”Phys. Rev. D, vol. 76, p. 094006, Nov 2007. [Online]. Available:https://link.aps.org/doi/10.1103/PhysRevD.76.094006 | |
dc.relation | [34] D. M. Asneret al., “Search for CP violation in D0 —¿K0(S) pi+ pi-,”Phys. Rev., vol.D70, p. 091101, 2004 | |
dc.relation | [35] A. B. et al’, “Amplitude analysis of the decayB±→π±π±π∓,”Phys. Rev. D, vol. 72,p. 052002, Sep 2005. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevD.72.052002 | |
dc.relation | [36] L. Lyons,Statistics for Nuclear and Particle Physicists. Cambridge University Press,1986. | |
dc.relation | [37] Lyons and Demortier,Everything you always wanted to know about pulls.CDF/ANAL/PUBLIC/5776, 2002 | |
dc.relation | [38] R. H. Dalitz, “On the analysis of tau-meson data and the nature of the tau-meson,”Phil. Mag. Ser.7, vol. 44, pp. 1068–1080, 1953 | |
dc.relation | [40] D. Dorfan, J. Enstrom, D. Raymond, M. Schwartz, S. Wojcicki, D. H.Miller, and M. Paciotti, “Charge asymmetry in the muonic decay of theK20,”Phys. Rev. Lett., vol. 19, pp. 987–993, Oct 1967. [Online]. Available:https://link.aps.org/doi/10.1103/PhysRevLett.19.987 | |
dc.relation | [41] S. Bennett, D. Nygren, H. Saal, J. Steinberger, and J. Sunderland, “Measurement ofthe charge asymmetry in the decayKL0→π±+e∓+ν,”Phys. Rev. Lett., vol. 19, pp.993–997, Oct 1967. [Online]. Available: https://link.aps.org/doi/10.1103/PhysRevLett.19.993 | |
dc.relation | [42] S. W. Herbet al., “Observation of a Dimuon Resonance at 9.5-GeV in 400-GeV Proton-Nucleus Collisions,”Phys. Rev. Lett., vol. 39, pp. 252–255, 1977 | |
dc.relation | [43] C. Bebeket al., “Evidence for New Flavor Production at the Upsilon (4S),”Phys. Rev.Lett., vol. 46, p. 84, 1981. | |
dc.relation | [44] L. J. Spenceret al., “Measurement ofBMeson Semileptonic Decay,”Phys. Rev. Lett.,vol. 47, pp. 771–774, 1981 | |
dc.relation | [45] E. Fernandezet al., “Lifetime of Particles Containing B Quarks,”Phys. Rev. Lett.,vol. 51, p. 1022, 1983 | |
dc.relation | [46] N. S. Lockyer, J. A. Jaros, M. E. Nelson, G. S. Abrams, D. Amidei, A. R. Baden,C. A. Blocker, A. M. Boyarski, M. Breidenbach, P. Burchat, D. L. Burke, J. M.Dorfan, G. J. Feldman, G. Gidal, L. Gladney, M. S. Gold, G. Goldhaber, L. Golding,G. Hanson, D. Herrup, R. J. Hollebeek, W. R. Innes, M. Jonker, I. Juricic, J. A.Kadyk, A. J. Lankford, R. R. Larsen, B. LeClaire, M. Levi, V. L ̈uth, C. Matteuzzi,R. A. Ong, M. L. Perl, B. Richter, M. C. Ross, P. C. Rowson, T. Schaad,H. Schellman, D. Schlatter, P. D. Sheldon, J. Strait, G. H. Trilling, C. de laVaissiere, J. M. Yelton, and C. Zaiser, “Measurement of the lifetime of bottomhadrons,”Phys. Rev. Lett., vol. 51, pp. 1316–1319, Oct 1983. [Online]. Available:https://link.aps.org/doi/10.1103/PhysRevLett.51.1316 | |
dc.relation | [47] H. Albrechtet al., “Observation of B0 - anti-B0 Mixing,”Phys. Lett., vol. B192, pp.245–252, 1987, [,51(1987)]. | |
dc.relation | [48] I. I. Y. Bigi and A. I. Sanda, “CP Violation in Heavy Flavor Decays: Predictions andSearch Strategies,”Nucl. Phys., vol. B281, pp. 41–71, 1987. | |
dc.relation | [49] D. Boutignyet al., “BaBar technical design report,” inBaBar Technical Design ReportEPAC Meeting Stanford, California, March 17-18, 1995, 1995. [Online]. Available:http://www.slac.stanford.edu/BFROOT/doc/TDR | |
dc.relation | [50] M. T. Chenget al., “A Study of CP violation in B meson decays: Technical designreport,” 1995. | |
dc.relation | [51] HFLAV. (2018) Heavy flavor averaging group. [Online]. Available: https://hflav.web.cern.ch | |
dc.relation | [52] Y. Amhiset al., “Averages ofb-hadron,c-hadron, andτ-lepton properties as of summer2016,”Eur. Phys. J., vol. C77, no. 12, p. 895, 2017 | |
dc.relation | [53] L. Henry, “Charmless hadronic three-body decays of neutralBmesons with aK0sin the final state in the LHCb experiment: branching fractions and an amplitudeanalysis: D ́esint ́egrations hadroniques `a trois corps sans charme de m ́esonsBavec unK0sdans l’ ́etat final dans l’exp ́erience LHCb : mesure de rapports d’embranchementet une analyse en amplitude,” Sep 2016, presented 30 Sep 2016. [Online]. Available:https://cds.cern.ch/record/2239050 | |
dc.relation | [54] T. Latham, “Charmless three-body decays of b-hadrons,” inMeeting of the APS Divi-sion of Particles and Fields, 10 2013 | |
dc.relation | [55] R. Aaijet al., “Study ofB0(s)→K0Sh+h′−decays with first observation ofB0s→K0SK±π∓andB0s→K0Sπ+π−,”JHEP, vol. 10, p. 143, 2013 | |
dc.relation | [56] L. Evans and P. Bryant, “LHC machine,”Journal of Instrumentation, vol. 3, no. 08,pp. S08 001–S08 001, aug 2008. [Online]. Available: https://doi.org/10.1088/1748-0221/3/08/s08001 | |
dc.relation | 57] L. Eklund, “The LHCb Upgrade. The LHCb Upgrade,” Tech. Rep. arXiv:1709.04709,Sep 2017, presented at the 11th conference on the intersections of particle and nuclearphysics (CIPANP 2012), 29 May-3 June, St Petersburg, Florida, US, AIP Conferenceproceedings Vol 1560 (2013). [Online]. Available: http://cds.cern.ch/record/2287526 | |
dc.relation | 58] T. Head, “The lhcb trigger system,”Journal of Instrumentation, vol. 9, no. 09, p.C09015, 2014. [Online]. Available: http://stacks.iop.org/1748-0221/9/i=09/a=C09015 | |
dc.relation | 59] W. Herr and B. Muratori, “Concept of luminosity,” 2006. [Online]. Available:https://cds.cern.ch/record/941318 | |
dc.relation | 60] R. Aaijet al., “LHCb Detector Performance,”Int. J. Mod. Phys., vol. A30, no. 07, p.1530022, 2015. | |
dc.relation | 61] ——, “Measurement of B meson production cross-sections in proton-proton collisionsat√s= 7 TeV,”JHEP, vol. 08, p. 117, 2013 | |
dc.relation | [62] J. Albrecht, M. Cattaneo, T. Gershon, V. V. Gligorov, P. Koppenburg, and G. Raven,“Implications of post-LS1 running conditions on LHCb’s data processing,” CERN,Geneva, Tech. Rep. LHCb-PUB-2013-008. CERN-LHCb-PUB-2013-008, Jun 2013.[Online]. Available: https://cds.cern.ch/record/1556085 | |
dc.relation | 63] LHCb, “11 December 2018: Celebrating a masterpiece of particle physics and IndustryAwards.” Dec 2018. [Online]. Available: http://lhcb-public.web.cern.ch/lhcb-public/ | |
dc.relation | 64] A. G., B. A. I., B. O., F. P., L. M., R. L., and T. L.,High-LuminosityLarge Hadron Collider (HL-LHC): Technical Design Report V. 0.1, ser. CERNYellow Reports: Monographs.Geneva: CERN, 2017. [Online]. Available: https://cds.cern.ch/record/2284929 | |
dc.relation | [65] D. Fazzini, “Flavour Tagging in the LHCb experiment,”PoS, vol. LHCP2018, p. 230,2018 | |
dc.relation | [66] Q. Fuhring, “Flavour Tagging at the LHCb Experiment,” Feb 2020. [Online]. Available:https://cds.cern.ch/record/2711221 | |
dc.relation | [67] E. Ben-Haim, R. Brun, B. Echenard, and T. E. Latham, “JFIT: a framework to obtaincombined experimental results through joint fits,” 9 2014. | |
dc.relation | [68] R. Aaijet al., “Physics case for an LHCb Upgrade II - Opportunities in flavour physics,and beyond, in the HL-LHC era,” 8 2018. | |
dc.rights | Atribución-NoComercial-SinDerivadas 4.0 Internacional | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.title | CP sensitivity Dalitz plot analysis of the decay B0→K0sK+K− | |
dc.type | Trabajo de grado - Maestría | |