Download or read book A Study of the Rare Charmless Hadronic B Decay B u2192 A0 0 Using the BaBar Detector written by and published by . This book was released on 2007 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: An upper limit has been extracted, at the 90% C.L, for the rare charmless hadronic B meson decay B ± → a0(980)±?0, where a0(980)± →??± and ?????????? or ???????? ?+?-?0. The analysis was based on a sample of approximately 340.7 fb-1 of data taken at the (4S) resonance with the BABAR detector at the PEP-II e+e- collider at SLAC from May 1999 to August 2006. The sample contains (379.9 ± 4.2) million B$ar{B}$ pairs.

Download or read book A Study of the Rare Charmless Hadronic B Decay B 2 a0 pi 0 Using the BaBar Detector written by and published by . This book was released on 2007 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: An upper limit has been extracted, at the 90% C.L, for the rare charmless hadronic B meson decay B ± → a0(980)±[pi]0, where a0(980)± →[eta][pi]± and [eta]→[gamma][gamma] or [eta]→ [pi]+[pi]-[pi]0. The analysis was based on a sample of approximately 340.7 fb-1 of data taken at the (4S) resonance with the BABAR detector at the PEP-II e+e- collider at SLAC from May 1999 to August 2006. The sample contains (379.9 ± 4.2) million B$\bar{B}$ pairs.

Download or read book A Study of the Rare Charmless Hadronic B Decay B rightwards Arrow A rtlch ltrch 486 Using the BaBar Detector written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charmless Hadronic B Decays at BABAR written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present several searches for charmless hadronic two-body and three-body decays of B mesons from electron-positron annihilation data collected by the BABAR detector near the[Upsilon](4S) resonance. We report the preliminary branching fractions[Beta](B[sup 0][yields][pi][sup+][pi][sup -])= (4.1[+-] 1.0[+-] 0.7) x 10[sup -6], [Beta](B[sup 0][yields] K[sup+][pi][sup -])= (16.7[+-] 1.6[+-] 1.3) x 10[sup -6], [Beta](B[sup 0][yields][rho][sup -+][pi][sup -+])= (49[+-] 13[sub -5][sup+6]) x 10[sup -6], [Beta](B[sup+][yields][eta]' K[sup+])= (62[+-] 18[+-] 8) x 10[sup -6], and present upper limits for nine other decays.

Download or read book A study of the rare charmless hadronic B decay B ao greek small letter PI 0 using the BABAR detector written by William Panduro Vazquez and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Rare Charmless Hadronic B Decay B rightwards Arrow A rtlch ltrch u00BA Using the BaBar Detector written by William Panduro Vazquez and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book written by and published by . This book was released on 1941 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of the Rare Charmless Hadronic B Meson Decays B zero to Phi K zero and B zero to K star plus Pi minus written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the analyses of the rare charmless hadronic B meson decays B[sup 0] [yields] [phi]K[sup 0] and B[sup 0] [yields] K*[sup +][pi][sup -], using 20.58 fb[sup -1] of e[sup +]e[sup -] data taken at the [Upsilon](4S) resonance. The data were taken with the BABAR detector during its first run at the PEP-II asymmetric e[sup +]e[sup -] collider. Measurements of these modes using a counting technique are presented with the branching fractions [Beta](B[sup 0] [yields] [phi]K[sup 0]) = (9.3 [+-] 3.4(stat.) [+-] 1.1(syst.)) x 10[sup -6] with a significance of 4.9[sigma], and [Beta](B[sup 0] [yields] K*[sup +][pi][sup -]) = (20.8 [+-] 9.3(stat.) [+-] 2.1(syst.)) x 10[sup -6] with a significance of 3.0[sigma]. For the latter, an upper limit of [Beta](B[sup 0] [yields] K*[sup +][pi][sup -])

Download or read book Study of Charmless Hadronic B Decays at BaBar written by and published by . This book was released on 2013 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Charmless Hadronic B Decays at Belle and BaBar written by and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: I report on recent measurements from the Belle and BABAR collaborations on the decay of the B meson to hadronic final states without a charm quark. The study of the branching fractions and angular distributions of B meson decays to hadronic final states without a charm quark probes the dynamics of both the weak and strong interactions, and plays an important role in understanding CP Violation (CPV) in the quark sector. CP Violation at the B factories is described graphically by a triangle with sides formed from the CKM matrix elements V{sub qd}V*{sub qb} (q = u, c, t) and internal angles [alpha], [beta] [gamma] (or [phi]2, [phi]1, [phi]3). Discrepancies in the measured values of the sides and angles could be an indication of New Physics beyond the Standard Model (SM) due to enhanced branching fractions or modified CP asymmetries. The experimental measurements of branching fractions, CP asymmetries, polarization and phases (both weak and strong) can be compared to theoretical models based on, for example, QCD factorization, SU(3) symmetry and Lattice QCD.

Download or read book Recent Results in Charmless Hadronic B Decays With BaBar written by and published by . This book was released on 2014 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Storia d una terebrazione per un dolore fisso al vertice pel corso di tre anni written by Timoteo Riboli and published by . This book was released on 1846 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of the Rare Decay B0 Ks K Pi written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report an analysis of charmless hadronic decays of neutral B mesons to the final state K{sub S}°K{sup ±}[pi]{sup {-+}}, using a data sample of (465 ± 5) x 106 B{bar B} events collected with the BABAR detector at the [Upsilon](4S) resonance. We observe an excess of signal events with a significance of 5.2 standard deviations including systematic uncertainties and measure the branching fraction to be [Beta](B° → K{sub S}°K{sup ±}[pi]{sup {-+}}) = (3.2 {+-} 0.5 {+-} 0.3) x 10−6, where the uncertainties are statistical and systematic, respectively.

Download or read book Measurements of Charmless Three Body and Quasi Two Body B Decays written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary results of a search for several exclusive charmless hadronic B decays from electron-positron annihilation data collected by the BaBar detector near the Upsilon(4S) resonance. These include three-body decay modes with final states h"h{sup minus-plus}h" and h"h{sup minus-plus}pi°, and quasi-two-body decay modes with final states X°h and X°K{sub S}°, where h = pi or K and X° = eta-prime or omega. They find beta(B° --> rho{sup minus-plus}pi{sup "}) = (49"135{sup +6}) x 10−6 and beta(B --> eta-prime-K+) = (62"18{+-}8) x 10−6 and present upper limits for right other decays.

Download or read book Study of Rare Radiative B Decay to K2 1430 Meson Using the BaBar Detector written by Qinghua Guo and published by . This book was released on 2004 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hadronic B Decays to Open Charm at the BaBar Experiment written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using about 23M B[bar B] events collected in 1999-2000 with the BABAR detector, they report on the decays B[yields] D(*)[bar D](*)K and B[sup 0][yields] D*[sup+]D*[sup -]. The branching fractions of the low background decay modes B[sup 0][yields] D*[sup -] D(*)[sup 0]K[sup+] are determined to be[Beta](B[sup 0][yields] D*[sup -] D[sup 0]K[sup+])= (2.8[+-] 0.7[+-] 0.5) x 10[sup -3] and[Beta](B[sup 0][yields] D*[sup -]D*[sup 0]K[sup+])= (6.8[+-] 1.7[+-] 1.7) x 10[sup -3], where the first error quoted is statistical and the second systematic. Observation of a significant number of candidates in the color-suppressed decay mode B[sup+][yields] D*[sup+]D*[sup -] K[sup+] is reported with a branching fraction[Beta](B[sup+][yields] D*[sup+]D*[sup -] K[sup+])= (3.4[+-] 1.6[+-] 0.9) x 10[sup -3]. Decays of the type B[yields] D(*)[bar D](*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle. For this decay mode they measure a branching fraction of[Beta](B[sup 0][yields] D*[sup+]D*[sup -])= (8.0[+-] 1.6[+-] 1.2) x 10[sup -4].

Download or read book Measurement of the Decay B u2192 l with the BaBar Detector and Determination of written by and published by . This book was released on 2010 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: We measure the branching fraction of the exclusive charmless semileptonic decay B→ ?l?l, where l is either an electron or a muon, with the charged B meson recoiling against a tag B meson decaying in the charmed semileptonic modes B → Dl?l or B → D*l?l. The measurement is based on a dataset of 426.1 fb-1 of e+e- collisions at a CM energy of 10.58 GeV recorded with the BABAR detector at the PEP-II asymmetric B Factory located at the SLAC National Accelerator Laboratory. We also calculate the relevant B → ? hadronic form factors to determine the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element.