Measurement of the Polarization in the Decay B[sup 0] [yields] J/[psi]K[sup *0] in [bar P]p Collisions at [radical] PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
This paper reports on the measurement of the polarization in the decay B[sup o] [yields] J/[psi]K[sup *o] using data collected at the collider Detector at Fermilab in [bar p]p collisions at [radical]s = 1.8 TeV. B[sup O] mesons were reconstructed through the decay chain B[sup o] [yields] J/[psi]K[sup *o], J/[psi] [yields] [mu][sup +][mu][sup [minus]], K[sup *o] [yields] K[sup +][pi][sup [minus]]. A sample of 50 [plus-minus] 11 events was used in the measurement, yielding the result [Gamma][sub L]/[Gamma] = 0.66 [plus-minus] 0.10 (stat) [sub [minus]]0.10 [sup +0.08] (sys).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
This paper reports on the measurement of the polarization in the decay B[sup o] [yields] J/[psi]K[sup *o] using data collected at the collider Detector at Fermilab in [bar p]p collisions at [radical]s = 1.8 TeV. B[sup O] mesons were reconstructed through the decay chain B[sup o] [yields] J/[psi]K[sup *o], J/[psi] [yields] [mu][sup +][mu][sup [minus]], K[sup *o] [yields] K[sup +][pi][sup [minus]]. A sample of 50 [plus-minus] 11 events was used in the measurement, yielding the result [Gamma][sub L]/[Gamma] = 0.66 [plus-minus] 0.10 (stat) [sub [minus]]0.10 [sup +0.08] (sys).
Author: Publisher: ISBN: Category : Languages : en Pages : 10
Book Description
This paper reports on the measurement of the polarization in the decay B{sup o} → J/?K{sup *o} using data collected at the collider Detector at Fermilab in {bar p}p collisions at √s = 1.8 TeV. B{sup O} mesons were reconstructed through the decay chain B{sup o} → J/?K{sup *o}, J/? →??−, K{sup *o} → K+?−. A sample of 50 ± 11 events was used in the measurement, yielding the result?{sub L}/? = 0.66 ± 0.10 (stat) −0.10 {sup +0.08} (sys).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors report on a measurement of the longitudinal polarization fraction in the decay B[sup 0][yields] J/[psi]K*[sup 0] using data collected with the Collider Detector at Fermilab. B[sup 0] mesons are reconstructed through the decay chain B[sup 0][yields] J/[psi] K*[sup 0], J/[psi][yields][mu][sup+][mu][sup[minus]], K*[sup 0][yields] K[sup+][pi][sup[minus]]. A sample of 65[+-] 10 events is used to obtain the result[Lambda][sub L]/[Lambda]= 0.65[+-] 0.10 (stat)[+-] 0.04 (sys). The first measurement of[Lambda][sub L]/[Lambda] in the decay B[sub s][sup 0][yields] J/[psi][phi] is also presented.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors present a measurement of the dipion mass spectrum in the decay X(3872) [yields] J/[psi][pi][sup +][pi][sup -] using a 360 pb[sup -1] sample of p[bar p] collisions at [radical]s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron Collider. As a benchmark, they also extract the dipion mass distribution for [psi](2S) [yields] J/[psi][pi][sup +][pi][sup -] decay. The X(3872) dipion mass spectrum is compared to QCD multipole expansion predictions for various charmonium states, as well as to the hypothesis X(3872) [yields] J/[psi]p[sup 0]. They find that the measured spectrum is compatible with [sup 3]S[sub 1] charmonium decaying to J/[psi][pi][sup +][pi][sup -] and with the X(3872) [yields] J/[psi]p[sup 0] hypothesis. There is, however, no [sup 3]S[sub 1] charmonium state available for assignment to the X(3872). The multipole expansion calculations for [sup 1]P[sub 1] and [sup 3]D[sub J] states are in clear disagreement with the X(3872) data. For the [psi](2S) the data agrees well with previously published results and to multipole expansion calculations for [sup 3]S[sub 1] charmonium. Other, non-charmonium, models for the X(3872) are described too. The authors conclude that since the dipion mass spectrum for X(3872) is compatible with J/[psi]p[sup 0] hypothesis, the X(3872) should be C-positive. This conclusion is supported by recent results from Belle Collaboration which observed X(3872) [yields] J/[psi][gamma] decay. They argue that if X(3872) is a charmonium, then it should be either 1[sup 1]D[sub 2-+] or 2[sup 3]P[sub 1++] state, decaying into J/[psi][pi][sup +][pi][sup -] in violation of isospin conservation. A non-charmonium assignment, such as D[bar D]* molecule, is also quite possible.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We have measured the time-dependent decay rate for the process B [yields] J/[psi] K*[sup 0](892) in a sample of about 88 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In this sample we study flavor-tagged events in which one neutral B meson is reconstructed in the J/[psi]K*[sup 0] or J/[psi] [bar K]*[sup 0] final state. We measure the coefficients of the cosine and sine terms in the time-dependent asymmetries for J/[psi]K*[sup 0] and J/[psi][bar K]*[sup 0], find them to be consistent with the Standard Model expectations, and set upper limits at 90% C.L. on the decay amplitude ratios A([bar B][sup 0] [yields] J/[psi]K*[sup 0])/A(B[sup 0] [yields] J/[psi]K*[sup 0])
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We have observed the rare decay B[sup 0] [yields] [rho][sup +][rho][sup -] in a sample of 89 million B[bar B] pairs recorded with the BABAR detector. We measure the branching fraction [Beta](B[sup 0] [yields] [rho][sup +][rho][sup -]) = (27[sub -6-7][sup +7+5]) x 10[sup -6] and determine the longitudinal polarization fraction [Lambda][sub L]/[Lambda] = 0.99[sub -0.07][sup +0.01] [+-] 0.03. The results are preliminary.
![Measurement of the Polarization in the Decay B[sup 0] [yields] J/[psi]K[sup *0] in [bar P]p Collisions at [radical] PDF](https://books.google.com/books/content/images/frontcover/eTr3jwEACAAJ?fife=w150-h200)
Author: ![Measurement of the Polarization in the Decay B[sup 0] [yields] J/[psi]K[sup *0] in [bar P]p Collisions at [radical] PDF](https://books.google.com/books/content/images/frontcover/eTr3jwEACAAJ?fife=w80-h100)
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Author: ![Measurement of the Polarization in the Decays B[sup 0][yields] J/[psi]K*[sup 0] and B[sub S][sup 0][yields] J/[psi][phi]. PDF](https://books.google.com/books/content/images/frontcover/iifADAEACAAJ?fife=w80-h100)
Author: ![Measurement of the Polarization in the Decay B[sup]0 Yields J PDF](https://books.google.com/books/content/images/frontcover/szGcoAEACAAJ?fife=w80-h100)
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Author: F. Abe![Measurement of the F 0 (1270) Polarization in the J/[psi] → F 0 [gamma] Decay PDF](https://books.google.com/books/content/images/frontcover/kTyGzQEACAAJ?fife=w80-h100)
Author: ![Measurement of the Dipion Mass Spectrum in the Decay X(3872) -] J/psi Pi+ Pi- at the CDF II Experiment PDF](https://books.google.com/books/content/images/frontcover/cwQBDQEACAAJ?fife=w80-h100)
Author: ![Measurement of the Ratio of Decay Amplitudes for B0bar -] J/psi K*0 and B0 -] J/psi K*0 PDF](https://books.google.com/books/content/images/frontcover/3KnbjwEACAAJ?fife=w80-h100)
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Author: ![Observation of the Decay B0-]rho+rho- and Measurement of the Branching Fraction and Polarization PDF](https://books.google.com/books/content/images/frontcover/mVm1DAEACAAJ?fife=w80-h100)
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