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Measurement Of Branching Fraction And Polarization In The Decay Beta0 Right Arrow Rho Rho
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Book Synopsis Measurement of Branching Fraction and Polarization in the Decay [Beta]0 [right Arrow] [rho]+[rho]− by : Yuriy V. Groysman
Download or read book Measurement of Branching Fraction and Polarization in the Decay [Beta]0 [right Arrow] [rho]+[rho]− written by Yuriy V. Groysman and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Branching Fraction, Polarization, and CP Asymmetries in B0-]rho0rho0 Decay, and Implications for the CKM Angle Alpha by :
Download or read book Measurement of the Branching Fraction, Polarization, and CP Asymmetries in B0-]rho0rho0 Decay, and Implications for the CKM Angle Alpha written by and published by . This book was released on 2008 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study B° 2![rho]°[rho]° decays in a sample of 465 x 106 [Upsilon](4S) 2!B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy ee− collider located at the Stanford Linear Accelerator Center (SLAC). We measure the branching fraction [Beta] = (0.92 ± 0.32 ± 0.14) x 10−6 and longitudinal polarization fraction f{sub L} = 0.75{sub -0.14}{sup +0.11} ± 0.04, where the first uncertainty is statistical and the second is systematic. The evidence for the B° 2![rho]°[rho]° signal has a significance of 3.1 standard deviations, including systematic uncertainties. We investigate the proper-time dependence of the longitudinal component in the decay and measure the CP-violating coefficients S{sub L}°° = (0.3 ± 0.7 ± 0.2) and C{sub L}°° = (0.2 ± 0.8 ± 0.3). They study the implication of these results for the unitarity triangle angle [alpha].
Book Synopsis Measurement of the Branching Fraction for the Decay B± [arrow] K*±[gamma], K*± [arrow] K±[pi]0 with the BaBar Detector by : Karsten Köneke
Download or read book Measurement of the Branching Fraction for the Decay B± [arrow] K*±[gamma], K*± [arrow] K±[pi]0 with the BaBar Detector written by Karsten Köneke and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Branching Fraction and Polarization for the Decay B- ---] D*0K*- by :
Download or read book Measurement of the Branching Fraction and Polarization for the Decay B- ---] D*0K*- written by and published by . This book was released on 2003 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Branching Fraction of the ${B} ^0} \rightarrow }{{D} ^+_{s}} {{\pi } ^-} $ Decay by : Roel Aaij
Download or read book Measurement of the Branching Fraction of the ${B} ^0} \rightarrow }{{D} ^+_{s}} {{\pi } ^-} $ Decay written by Roel Aaij and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Branching Fractions, Polarizations, and Direct CP-violation Asymmetries in B -] Rho0 K* and B -] F0(980) K* Decays by :
Download or read book Measurements of Branching Fractions, Polarizations, and Direct CP-violation Asymmetries in B -] Rho0 K* and B -] F0(980) K* Decays 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 measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B →?°K*+ and B+ f0(980)K*+ with a sample of (467 ± 5) x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Accelerator Laboratory. We observe B+ →?°K*+ with a significance of 5.3? and measure the branching fraction?(B+ →?°K*+) = (4.6 ± 1.0 ± 0.4) x 10−6, the longitudinal polarization f{sub L} = 0.78 ± 0.12 ± 0.03, and the CP-violation asymmetry A{sub CP} = 0.31 ± 0.13 ± 0.03. We observe B+ → f0(980)K*+ and measure the branching fraction?(B+ → f0(980)K*+) x?(f0(980) →?+?−) = (4.2 ± 0.6 ± 0.3) x 10−6 and the CP-violation asymmetry A{sub CP} = -0.15 ± 0.12 ± 0.03. The first uncertainty quoted is statistical and the second is systematic.
Book Synopsis Measurement of the Branching Fractions of the Decays $D^+\rightarrow K^-K ^+K^+$, $D^+\rightarrow \pi^-\pi^+K^+$ and $D^+_s\rightarrow \pi^-K^+K^ by : Roel Aaij
Download or read book Measurement of the Branching Fractions of the Decays $D^+\rightarrow K^-K ^+K^+$, $D^+\rightarrow \pi^-\pi^+K^+$ and $D^+_s\rightarrow \pi^-K^+K^ written by Roel Aaij and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Absolute Branching Fractions for $D-̂_s\!\rightarrow\!\ell-̂\bar{\nu}_{\ell}$ and Extraction of the Decay Constant $f_{D_s}$ by :
Download or read book Measurement of the Absolute Branching Fractions for $D-̂_s\!\rightarrow\!\ell-̂\bar{\nu}_{\ell}$ and Extraction of the Decay Constant $f_{D_s}$ written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absolute branching fractions for the decays D{sub s}− → l−{bar?}{sub l} (l = e,?, or?) are measured using a data sample corresponding to an integrated luminosity of 521 fb−1 collected at center of mass energies near 10.58 GeV with the BABAR detector at the PEP-II ee− collider at SLAC. The number of D{sub s}− mesons is determined by reconstructing the recoiling system DKX? in events of the type e+e−DKXD*{sub s}−, where D*{sub s}− → D{sub s}−? and X represents additional pions from fragmentation. The D{sub s}− → l°{nu}{sub {ell}} events are detected by full or partial reconstruction of the recoiling system DKX?{ell}. The branching fraction measurements are combined to determine the D{sub s}− decay constant f{sub D{sub s}} = (258.6 ± 6.4 ± 7.5) MeV, where the first uncertainty is statistical and the second is systematic.
Book Synopsis Measurement of the Ratio of Branching Fractions Br(B0s̳ [right Arrow] D−s̳[pi])/Br(B0 [right Arrow] D−[pi]+) at CEF-11 by : Ivan Krešimir Furić
Download or read book Measurement of the Ratio of Branching Fractions Br(B0s̳ [right Arrow] D−s̳[pi])/Br(B0 [right Arrow] D−[pi]+) at CEF-11 written by Ivan Krešimir Furić and published by . This book was released on 2004 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: The measurement of B0s mixing is one of the flagship analyses for the Run II B physics program. The sensitivity of the measurement to the frequency of B0s oscillations strongly depends on the number of reconstructed B0 mesons. We present the measurement of the ratio of branching fractions Br ..., which directly influences the number of B0s events available for the measurement of B0s mixing at CDF-II. We analyze 115 pb-l of data collected with the CDF-II detector in pp collisions at ... TeV using a novel displaced track trigger ...
Book Synopsis A Measurement of the Branching Fractions and CP Asymmetries of the Decays B± 2!K*±[pi]0 and B± 2![rho]±[pi]0 at BaBar by :
Download or read book A Measurement of the Branching Fractions and CP Asymmetries of the Decays B± 2!K*±[pi]0 and B± 2![rho]±[pi]0 at BaBar written by and published by . This book was released on 2005 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the branching fractions (average over charge-conjugate decays), B, and CP violating asymmetries, ACP, of the decays B± → K*±[pi]0 and B± → [rho]±[pi]0 are presented.
Book Synopsis Measurement of Branching Fractions and CP-Violating Asymmetries in B -] Rho+/-h-/ by :
Download or read book Measurement of Branching Fractions and CP-Violating Asymmetries in B -] Rho+/-h-/ written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of branching fractions and CP-violating asymmetries in B[sup 0][yields][rho][sup[+-]][pi][sup[-+]] and B[sup 0][yields][rho][sup -]K[sup+] decays. The results are obtained from a data sample of 88.9 x 10[sup 6][Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum likelihood fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][rho][sup[+-]][pi][sup[-+]])= (22.6[+-] 1.8 (stat)[+-] 2.2 (syst)) x 10[sup -6] and[Beta](B[sup 0][yields][rho][sup -]K[sup+])= (7.3[sub -1.2][sup+1.3][+-] 1.3) x 10[sup -6]; and the CP-violating charge asymmetries A[sub CP][sup[rho][pi]]= -0.18[+-] 0.08[+-] 0.03 and A[sub CP][sup[rho]K]= 0.28[+-] 0.17[+-] 0.08; the direct CP violation parameter C[sub[rho][pi]]= 0.36[+-] 0.18[+-] 0.04 and the mixing-induced CP violation parameter S[sub[rho][pi]]= 0.19[+-] 0.24[+-] 0.03; and the dilution parameters[Delta]C[sub[rho][pi]]= 0.28[sub -0.19][sup+0.18][+-] 0.04 and[Delta]S[sub[rho][pi]]= 0.15[+-] 0.25[+-] 0.03.
Book Synopsis A New Branching Ratio Measurement of the Pion Beta-decay [pi]+[right Arrow][pi]0+e++[nu]e by : Francois Charles Gaille
Download or read book A New Branching Ratio Measurement of the Pion Beta-decay [pi]+[right Arrow][pi]0+e++[nu]e written by Francois Charles Gaille and published by . This book was released on 1982 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation and Branching Fraction Measurement of the [neutral Cascade Beta Decay] at KTeV/E799-II, Fermilab by : Ashkan Alavi-Harati
Download or read book Observation and Branching Fraction Measurement of the [neutral Cascade Beta Decay] at KTeV/E799-II, Fermilab written by Ashkan Alavi-Harati and published by . This book was released on 1999 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Branching Fractions and Charge Asymmetries in B+/- --]rho+/-pi0 and B+/- --]rho0pi+/- Decays, and Search for B0 --] Rho0pi0 by : B. Aubert
Download or read book Measurement of Branching Fractions and Charge Asymmetries in B+/- --]rho+/-pi0 and B+/- --]rho0pi+/- Decays, and Search for B0 --] Rho0pi0 written by B. Aubert and published by . This book was released on 2003 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of branching fractions and charge asymmetries in B-meson decays to {rho}{sup +}{pi}{sup 0}, {rho}{sup 0}{pi}{sup +} and {rho}{sup 0}{pi}{sup 0}. The data sample comprises 89 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetries-energy B Factory at SLAC. They find the charge-averaged branching fractions {Beta}(B{sup +} {yields} {rho}{sup +}{pi}{sup 0}) = (10.9 {+-} 1.9(stat) {+-} 1.9(syst)) x 10{sup -6} and {Beta}(B{sup +} {yields} {rho}{sup 0}{pi}{sup +}) = (9.5 {+-} 1.1 {+-} 0.8) x 10{sup -6}, and they set a 90% confidence-level upper limit {Beta}(B{sup 0} {yields} {rho}{sup 0}{pi}{sup 0})
Book Synopsis Measurement of the Branching Fraction and Lambda-bar Polarization in B0 -> Lambda-par P Pi-. by :
Download or read book Measurement of the Branching Fraction and Lambda-bar Polarization in B0 -> Lambda-par P Pi-. written by and published by . This book was released on 2009 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the B° → {bar ?}p?− branching fraction performed using the BABAR detector at the PEP-II asymmetric e+e− collider. Based on a sample of 467 x 106 B{bar B} pairs we measure ?(B° → {bar ?}p?−) [3.07 ± 0.31(stat.) ± 0.23(syst.)] x 10−6. The measured differential spectrum as a function of the dibaryon invariant mass m({bar ?}p) shows a near-threshold enhancement similar to that observed in other baryonic B decays. We study the {bar ?} polarization as a function of {bar ?} energy in the B° rest frame (E*{sub {bar ?}}) and compare it with theoretical expectations of fully longitudinally right-polarized {bar ?} at large E*{sub {bar ?}}.
Book Synopsis Measurement of the Branching Fraction of the Decay $B_s^0\to K_S^0 K_S^0\\ by : Roel Aaij
Download or read book Measurement of the Branching Fraction of the Decay $B_s^0\to K_S^0 K_S^0\\ written by Roel Aaij and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Superradiance written by Richard Brito and published by Springer Nature. This book was released on 2020-08-21 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on one mechanism in black hole physics which has proven to be universal, multifaceted and with a rich phenomenology: rotational superradiance. This is an energy extraction process, whereby black holes can deposit their rotational energy in their surroundings, leading to Penrose processes, black-hole bombs, and even Hawking radiation. Black holes are key players in star formation mechanisms and as engines to some of the most violent events in our universe. Their simplicity and compactness make them perfect laboratories, ideally suited to probe new fields or modifications to the theory of gravity. Thus, black holes can also be used to probe some of the most important open problems in physics, including the nature of dark matter or the strong CP problem in particle physics. This monograph is directed to researchers and graduate students and provides a unified view of the subject, covering the theoretical machinery, experimental efforts in the laboratory, and astrophysics searches. It is focused on recent developments and works out a number of novel examples and applications, ranging from fundamental physics to astrophysics. Non-specialists with a scientific background should also find this text a valuable resource for understanding the critical issues of contemporary research in black-hole physics. This second edition stresses the role of ergoregions in superradiance, and completes its catalogue of energy-extraction processes. It presents a unified description of instabilities of spinning black holes in the presence of massive fields. Finally, it covers the first experimental observation of superradiance, and reviews the state-of-the-art in the searches for new light fields in the universe using superradiance as a mechanism.
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