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Study Of The B C 2j Psid S And B C2j Psi D S Decays With The Atlas Detector
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Book Synopsis Study of the B+c 2!J/[psi]D+s and B+c2!J/[psi] D*+s Decays with the ATLAS Detector by :
Download or read book Study of the B+c 2!J/[psi]D+s and B+c2!J/[psi] D*+s Decays with the ATLAS Detector written by and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the decays B+c → J/[psi]D+s and B+c → J/[psi] D*+s are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 and 20.6 fb-1 of pp collisions collected at centre-of-mass energies √s=7 TeV and 8 TeV, respectively. Signal candidates are identified through J/[psi] → [mu]+[mu]- and D(*)+s → [Phi][pi]+([gamma]/[pi]0) decays. With a two-dimensional likelihood fit involving the B+c reconstructed invariant mass and an angle between the [mu]+ and D+s candidate momenta in the muon pair rest frame, the yields of B+c → J/[psi]D+s and B+c → J/[psi] D*+s, and the transverse polarisation fraction in B+c → J/[psi] D*+s decay are measured.
Book Synopsis Study of the B+c 2!J/[Psi]D+s and B+c 2!J/[Psi]D*s+ Decays with the ATLAS Detector by :
Download or read book Study of the B+c 2!J/[Psi]D+s and B+c 2!J/[Psi]D*s+ Decays with the ATLAS Detector written by and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decays B+c → J/[Psi]D+s and B+c → J/[Psi]D*s+ are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 and 20.6 fb-1 of pp collisions collected at centre-of-mass energies √s = 7 TeV and 8 TeV, respectively. Furthermore, signal candidates are identified through J/[psi] → [mu]+[mu]- and D(*)+s → [Phi][pi]+([gamma]/[pi]0) decays.
Book Synopsis Study of B+c->J/[psi]D+s and B+c->J/[psi]D∗+s Decays in Pp Collisions at [square Root]s by : [Study Group] ATLAS Collaboration CERN
Download or read book Study of B+c->J/[psi]D+s and B+c->J/[psi]D∗+s Decays in Pp Collisions at [square Root]s written by [Study Group] ATLAS Collaboration CERN and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of the B+c {u2192} J/?D+s and B+c{u2192} J/? D*+s Decays with the ATLAS Detector by :
Download or read book Study of the B+c {u2192} J/?D+s and B+c{u2192} J/? D*+s Decays with the ATLAS Detector written by and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the decays B+c → J/?D+s and B+c → J/? D*+s are studied with the ATLAS detector at the LHC using a dataset corresponding to integrated luminosities of 4.9 and 20.6 fb–1 of pp collisions collected at centre-of-mass energies √s=7 TeV and 8 TeV, respectively. Signal candidates are identified through J/? → ?+?– and D(*)+s → ??+(?/?0) decays. With a two-dimensional likelihood fit involving the B+c reconstructed invariant mass and an angle between the ?+ and D+s candidate momenta in the muon pair rest frame, the yields of B+c → J/?D+s and B+c → J/? D*+s, and the transverse polarisation fraction in B+c → J/? D*+s decay are measured.
Book Synopsis Study of B → Μ+μ− Decays with the ATLAS Detector by : Fabio Tresoldi
Download or read book Study of B → Μ+μ− Decays with the ATLAS Detector written by Fabio Tresoldi and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prospects of Observing the Decay Bc → J/[psi] [pi] and the Alignment Performance in the ATLAS Experiment by : Weina Ji
Download or read book Prospects of Observing the Decay Bc → J/[psi] [pi] and the Alignment Performance in the ATLAS Experiment written by Weina Ji and published by . This book was released on 2010 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book B Decays written by Sheldon Stone and published by World Scientific. This book was released on 1994 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Book Synopsis Evidence for the Rare Decay, B--] J/psi Eta K. by :
Download or read book Evidence for the Rare Decay, B--] J/psi Eta K. written by and published by . This book was released on 2003 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report evidence for the B meson decays, B{sup ±} 2!J/[psi][eta]K{sup ±} and B° 2!J/[psi][eta]K{sub S}°, using 90 million B{bar B} events collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− asymmetric-energy storage ring. We obtain preliminary branching fractions in the charged and neutral channels of (10.8 ± 2.3(stat.) ± 2.4(syst.)) x 10−5 and (8.4 {+-} 2.6(stat.) {+-} 2.7(syst.)) x 10−5, respectively.
Book Synopsis Observation of the Three-body Rare Decay B-] J/psi Phi K. by :
Download or read book Observation of the Three-body Rare Decay B-] J/psi Phi K. written by and published by . This book was released on 2010 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the study of the B meson decays B{sup ±} 2!J/[psi][phi]K{sup ±}, B° 2!J/[psi][phi]K° using 433 million of B{bar B} events collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− asymmetric-energy collider. They obtain the branching fraction measurements: [Beta](B{sup ±} 2!J[psi][phi]K{sup ±}) = (5.6 {+-} 0.9(stat) {+-} 0.3(sys)) x 10−5, [Beta](B{sup {+-}} 2!J[psi][phi]K°) = (5.4 {+-} 1.2(stat) {+-} 0.4(sys)) x 10−5.
Book Synopsis Rare B Decays to States Containing a J/psi Meson by :
Download or read book Rare B Decays to States Containing a J/psi Meson written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a study of the B meson decays, B[sup+][yields] J/[psi][phi]K[sup+], B[sup 0][yields] J/[psi][phi]K[sub S][sup 0], B[sup 0][yields] J/[psi][phi], B[sup 0][yields] J/[psi][eta] and B[sup 0][yields] J/[psi][eta][prime] using 56 million B[bar B] events collected at the[Upsilon](4S) resonance with the BABAR detector at the PEP-II e[sup+]e[sup -] asymmetric-energy storage ring. They measure the branching fractions[Beta](B[sup+][yields] J/[psi][phi]K[sup+])= (4.4[+-] 1.4(stat)[+-] 0.5(syst)) x 10[sup -5] and[Beta](B[sup 0][yields] J/[psi][phi]K[sub S][sup 0])= (5.1[+-] 1.9(stat)[+-] 0.5(syst)) x 10[sup -5], and set upper limits at 90% confidence level for the branching fractions[Beta](B[sup 0][yields] J/[psi][phi])
Book Synopsis Study of Decays $B_d \to J/\psi+ K^*$ and $B_s \to J/\psi+ \phi$ with the D0 Detector by :
Download or read book Study of Decays $B_d \to J/\psi+ K^*$ and $B_s \to J/\psi+ \phi$ with the D0 Detector written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of the linear polarization amplitudes and the strong relative phases that describe the flavor-untagged decays B{sub d} → J/[Psi] K* and B{sub s} → J/[Psi][phi] in the transversity basis. We also measure the mean lifetime of the B{sub s} mass eigenstates and the lifetime ratio. The analyses are based on approximately 2.8 fb−1 of data recorded with the D0 detector. From our measurements of the angular parameters we conclude that there is no evidence for a deviation from flavor SU(3) symmetry for these decays and that the factorization assumption is not valid for the B{sub d} → J/[Psi] K* decay.
Download or read book Search for B -] J/psi D Decays written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a search for B 2!J/[psi]D decays, based on a sample of 124 x 106 B{bar B} events collected with the BABAR detector at the PEP-II storage ring of the Stanford Linear Accelerator Center. No significant signal is found. We obtain upper limits on the branching fractions of 1.3 x 10−5 for B° 2!J/[psi] {bar D}° and 1.2 x 10−4 for B 2!J/[psi] D at 90% confidence level.
Book Synopsis Study of Hadronic and Rare B Decays in BABAR. by :
Download or read book Study of Hadronic and Rare B Decays in BABAR. written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results from BaBar experiment for the measurement of inclusive and exclusive branching fractions of B mesons into final states containing J/[psi], [psi](2S) and [chi]c. The contributions of CP even and odd amplitudes in the decay B° 2!J/[psi]K*° are determined from an angular analysis. We report the measurements of the branching ratios B° 2!D* D*− and D* D*− K{sub S}°, and the study of exclusive two-body and quasi-two-body charmless decays. The branching fraction of the decay B° 2!K*°[gamma] has been determined and the corresponding CP asymmetry has been measured.
Book Synopsis Study of the Decays B− 2!D*?−?− by :
Download or read book Study of the Decays B− 2!D*?−?− written by and published by . This book was released on 2003 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on analyses of B− mesons decaying into D*?−?− and D+?−?− final states using 89 million B− decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory. Preliminary measurements are given for the inclusive branching fractions for B− → D*+?−?− and B− → D*+?−?−, and for the exclusive branching fractions for B− → D1(2420)°?− and B− → D*2(2460)°?−, where D1(2420)° and D*2(2460)° are the two narrow c{bar u} P-wave states. The ratio?(B− → D*2(2460)°?−)/?(B− → D1(2420)°?−) is measured to be 0.80 ± 0.07 ± 0.16.
Book Synopsis Study of B{sup {+-}} 2!J/[psi] [pi]{sup {+-}} and B{sup {+-}} 2!J/[psi] K{sup {+-}} Decays by :
Download or read book Study of B{sup {+-}} 2!J/[psi] [pi]{sup {+-}} and B{sup {+-}} 2!J/[psi] K{sup {+-}} Decays written by and published by . This book was released on 2004 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors study B{sup ±} → J/[psi] [pi]{sup ±} and B{sup ±} → J/[psi] K{sup ±} decays in a sample of about 89 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They observe a signal of 244 ± 20 B{sup ±} → J/[psi] [pi]{sup ±} events and determine the ratio [Beta](B{sup {+-}} → J/[psi] [pi]{sup {+-}})/[Beta](B{sup {+-}} → J/[psi] K{sup {+-}}) to be [5.37 {+-} 0.45(stat.) {+-} 0.11(syst.)]%. The charge asymmetries for the B{sup {+-}} → J/[psi] [pi]{sup {+-}} and B{sup {+-}} → J/[psi] K{sup {+-}} decays are determined to be [Alpha]{sub {pi}} = 0.123 {+-} 0.085(stat.) {+-} 0.004(syst.) and [Alpha]{sub K} = 0.030 {+-} 0.015(stat.) {+-} 0.006(syst.), respectively.
Book Synopsis Evidence for the Decay X(3872) -] J/\psi\omega by :
Download or read book Evidence for the Decay X(3872) -] J/\psi\omega written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of the decays B{sup 0,+} --> J/???−?°K{sup 0,+}, using 467x106 B{anti B} pairs recorded with the BABAR detector. We present evidence for the decay mode X(3872) --> J/??, with product branching fractions B(B+ --> X(3872)K+) x B(X(3872) --> J/??) = [0.6 ± 0.2(stat) ± 0.1(syst)] x 10−5, and B(B° --> X(3872)K°) x B(X(3872) --> J/??) = [0.6 ± 0.3(stat) ± 0.1(syst)] x 10−5. A detailed study of the?+?−?° mass distribution from X(3872) decay favors a negative-parity assignment.
Book Synopsis A Study of $B \to J/\psi K{̂(*)} 0 X$ Decays by :
Download or read book A Study of $B \to J/\psi K{̂(*)} 0 X$ Decays written by and published by . This book was released on 2001 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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