Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations PDF full book. Access full book title Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations by . Download full books in PDF and EPUB format.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The lifetime of the B[sub s][sup 0] meson is measured using the semileptonic decay B[sub s][sup 0][r-arrow] D[sub s][sup[minus]]l[sup[plus]][nu]X. The data sample consists of approximately 110 pb[sup[minus]1] of p[ovr p] collisions at[radical]s= 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider. There are 254[plus-minus]21 D[sub s][sup[minus]]l[sup[plus]] signal events where the D[sub s][sup[plus]] is reconstructed through its decay mode D[sub s][sup[minus]][r-arrow][phi][pi][sup[minus]], [phi][r-arrow] K[sup[plus]]K[sup[minus]]. Using these events, the B[sub s][sup 0] meson lifetime is determined to be[tau](B[sub s][sup 0])[equals] 1.37[sup[plus]0.14][sub[minus]0.12](stat.)[plus-minus]0.04(syst.) ps. The B[sub s][sup 0] meson proper decay length distribution has been examined for a lifetime difference between the two CP eigenstates of the B[sub s][sup 0] meson, B[sub s][sup H] and B[sub s][sup L]. 12 refs., 3 figs., 1 tab.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The lifetime of the B[sub s][sup 0] meson is measured using the semileptonic decay B[sub s][sup 0][r-arrow] D[sub s][sup[minus]]l[sup[plus]][nu]X. The data sample consists of approximately 110 pb[sup[minus]1] of p[ovr p] collisions at[radical]s= 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider. There are 254[plus-minus]21 D[sub s][sup[minus]]l[sup[plus]] signal events where the D[sub s][sup[plus]] is reconstructed through its decay mode D[sub s][sup[minus]][r-arrow][phi][pi][sup[minus]], [phi][r-arrow] K[sup[plus]]K[sup[minus]]. Using these events, the B[sub s][sup 0] meson lifetime is determined to be[tau](B[sub s][sup 0])[equals] 1.37[sup[plus]0.14][sub[minus]0.12](stat.)[plus-minus]0.04(syst.) ps. The B[sub s][sup 0] meson proper decay length distribution has been examined for a lifetime difference between the two CP eigenstates of the B[sub s][sup 0] meson, B[sub s][sup H] and B[sub s][sup L]. 12 refs., 3 figs., 1 tab.
Author: Publisher: ISBN: Category : Languages : en Pages : 14
Book Description
The lifetime of the B{sub s}° meson is measured using the semileptonic decay B{sub s}° → D{sub s}−l{sup {plus}}[nu]X. The data sample consists of approximately 110 pb−1 of p{ovr p} collisions at √s = 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider. There are 254±21 D{sub s}−l{sup {plus}} signal events where the D{sub s}{sup {plus}} is reconstructed through its decay mode D{sub s}− → [phi][pi]−, [phi] → K{sup {plus}}K−. Using these events, the B{sub s}° meson lifetime is determined to be [tau](B{sub s}°) = 1.37{sup {plus}0.14}{sub -0.12}(stat.)±0.04(syst.) ps. The B{sub s}° meson proper decay length distribution has been examined for a lifetime difference between the two CP eigenstates of the B{sub s}° meson, B{sub s}{sup H} and B{sub s}{sup L}. 12 refs., 3 figs., 1 tab.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The B[sup 0] and B[sup+] meson lifetimes have been measured in e[sup+]e[sup -] annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the[Upsilon](4S) resonance. Events are selected in which one B meson is fully reconstructed in a hadronic final state while the second B meson is reconstructed inclusively. A combined fit to the B[sup 0] and the B[sup+] decay time difference distributions yields[tau][sub B[sup 0]]= 1.546[+-] 0.032 (stat)[+-] 0.022 (syst) ps, [tau][sub B[sup+]]= 1.673[+-] 0.032 (stat)[+-] 0.023 (syst) ps and[tau][sub B[sup+]]/[tau][sub B[sup 0]]= 1.082[+-] 0.026 (stat)[+-] 0.012 (syst).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We measure the B[sup 0] lifetime[tau][sub b[sup 0]] and the B[sup 0]-[bar B][sup 0] oscillation frequency[Delta]m[sub d] with a sample of approximately 14,000 exclusively reconstructed B[sup 0][yields] D*[sup -][ell][sup+][nu][sub[ell]] signal events, selected from 23 million B[bar B] pairs recorded at the[Upsilon](4S) resonance with the BABAR detector at the Stanford Linear Accelerator Center. The decay position of the other B is determined with the remaining tracks in the event, and its b-quark flavor at the time of decay is determined with a tagging algorithm that exploits the correlation between the flavor of the b-quark and the charges of its decay products. The lifetime and oscillation frequency are measured simultaneously with an unbinned maximum-likelihood ([Delta]t) that uses, for each event, the measured difference in decay times of the two B mesons ([Delta]t), the calculated uncertainty on[Delta]t, the signal and background probabilities, and b-quark tagging information for the other B. The results are[tau][sub B[sup 0]]= (1.523[sub -0.023][sup+0.024][+-] 0.022) ps and[Delta]m[sub d]= (0.492[+-] 0.018[+-] 0.013) ps[sup -1].
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The authors present recent CDF measurements of[tau][sup+], [tau][sup 0], and[tau][sup+]/[tau][sup 0] using exclusive B[yields][psi]K decays, where B= B[sup+] or B[sup 0], [psi]= J/[psi] or[psi](2S), and K= K[sup+], K*(892)[sup 0], K[sub S][sup 0], or K*(892)[sup+]. The precision of these results is less than 10% and is nearly identical to that previously reported at LEP.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Proton-antiproton collision data corresponding to a total integrated luminosity of [approximately] 21 pb[sup [minus]1] were collected with the CDF detector at the Fermilab Tevatron collider during 1992--1993. The lifetime of the B[sub s] meson is measured using events from the semileptonic decay B[sub s] [yields] [ell][sup +][nu]D[sub s][sup [minus]]X and from the exclusive decay B[sub s] [yields] J/[psi][phi]. For the semileptonic decay channel, 76 [ell][sup +]D[sub s][sup [minus]] signal events are selected where the D[sub s] is identified via the decay D[sub s][sup [minus]] [yields] [phi][pi][sup [minus]], [phi] [yields] K[sup +]K[sup [minus]]. From this sample the B[sub s] meson lifetime is determined to be [tau][sub s] = 1.42[sub [minus]0.23][sup +0.27] (stat.)[sub [minus]0.11][sup +0.11] (syst.) ps. In the J/[psi][phi] channel, 11 events are used and the lifetime is found to be [tau][sub s] = 1.74[sub [minus]0.60][sup +0.90] (stat.)[sub [minus]0.07][sup +0.07] (syst.) ps.
Author: Publisher: ISBN: Category : Languages : en Pages : 218
Book Description
A method is presented to simultaneously separate the contributions to a sample of B{sub (s)}° 2!hh{sup {prime}-} decays, where h = [pi] or K, and measure the B meson lifetimes in the sample while correcting for the bias in the lifetime distributions due to the hadronic trigger at the CDF experiment. Using 1 fb−1 of data collected at CDF the B° lifetime is measured as [tau]{sub B°} = 1.558{sub -0.047}{sup +0.050}{sub stat} ± 0.028{sub syst} ps, in agreement with the world average measurement. The B{sub s}° lifetime in the B{sub s}° 2!KK− decay is measured as [tau]{sub B{sub s}° 2!K+K−} = 1.51{sub -0.11}{sup +0.13}{sub stat} ± 0.04{sub syst} ps. No difference is observed between the lifetime and other measurements of the average B{sub s}° lifetime or the lifetime of the light B{sub s}° mass eigenstate determined from B{sub s}° 2!J/[psi][phi] decays. With the assumptions that B{sub s}° 2!K+K− is 100% CP-even and that [tau]{sub B{sub s}°} = [tau]{sub B°} the width difference in the B{sub s}{sup 0} system is determined as [Delta][Lambda]{sup CP}/[Lambda] = 0.03{sub -0.15}{sup +0.17}{sub stat} ± 0.05{sub syst} using the current world average B{sup 0} lifetime. This is consistent with zero and with the current world average measurement.
![Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations PDF](https://books.google.com/books/content/images/frontcover/6eaTDAEACAAJ?fife=w150-h200)
Author: ![Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations PDF](https://books.google.com/books/content/images/frontcover/6eaTDAEACAAJ?fife=w80-h100)
Author: 
Author: 
Author: G. E. Forden![Measurement of the B[sup 0] and B[sup+] Meson Lifetimes with Fully Reconstructed Hadronic Final States PDF](https://books.google.com/books/content/images/frontcover/NLnLjwEACAAJ?fife=w80-h100)
Author: ![Simultaneous Measurement of the B0 Meson Lifetime and Mixing Frequency with B0 --] D*- 1+ Nu Decays PDF](https://books.google.com/books/content/images/frontcover/Pw-0DAEACAAJ?fife=w80-h100)
Author: ![Measurement of the B[sup+] and B[sup 0] Meson Lifetimes Using Exclusive B[yields][psi]K Decays at CDF. PDF](https://books.google.com/books/content/images/frontcover/GuO2DAEACAAJ?fife=w80-h100)
Author: ![Measurement of the B[sub S] Meson Lifetime at CDF. PDF](https://books.google.com/books/content/images/frontcover/oeb-jwEACAAJ?fife=w80-h100)
Author: 
Author: 
Author: ![Measurement of the B/s0 Lifetime in B/s0 --] K+ K- Decays PDF](https://books.google.com/books/content/images/frontcover/vzFMAQAACAAJ?fife=w80-h100)
Author: