Measurement Of The Mass And Width And Study Of The Spin Of The Xi 1690 0 Resonance From Lambdac Lambda Anti K0 K Decay At Babar
DOWNLOAD
Download Measurement Of The Mass And Width And Study Of The Spin Of The Xi 1690 0 Resonance From Lambdac Lambda Anti K0 K Decay At Babar PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of The Mass And Width And Study Of The Spin Of The Xi 1690 0 Resonance From Lambdac Lambda Anti K0 K Decay At Babar book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Measurement Of The Mass And Width And Study Of The Spin Of The Xi 1690 0 Resonance From Lambdac Lambda Anti K0 K Decay At Babar
DOWNLOAD
Author : B. Aubert
language : en
Publisher:
Release Date : 2006
Measurement Of The Mass And Width And Study Of The Spin Of The Xi 1690 0 Resonance From Lambdac Lambda Anti K0 K Decay At Babar written by B. Aubert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
The {Xi}(1690){sup 0} resonance is observed in the {Lambda}{bar K}{sup 0} channel in the decay {Lambda}{sub c}{sup +} {yields} {Lambda}{bar K}{sup 0}K{sup +}, from a data sample corresponding to a total integrated luminosity of {approx} 200 fb{sup -1} recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- collider operating at {approx} 10.58 GeV and {approx} 10.54 GeV center-of-mass energies. A fit to the Dalitz plot intensity distribution corresponding to the coherent superposition of amplitudes describing {Lambda}a{sub 0}(980){sup +} and {Xi}(1690){sup 0} K{sup +} production yields mass and width values of 1684.7 {+-} 1.3(stat.){sub -1.6}{sup +2.2}(syst.) MeV/c{sup 2}, and 8.1{sub -3.5}{sup +3.9}(stat.){sub -0.9}{sup +1.0}(syst.) MeV, respectively, for the {Xi}(1690){sup 0}, while the spin is found to be consistent with value of 1/2 on the basis of studies of the ({Lambda}K{sub S}) angular distribution.
Charm Baryon Studies At Babar
DOWNLOAD
Author : V. Ziegler
language : en
Publisher:
Release Date : 2006
Charm Baryon Studies At Babar written by V. Ziegler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
The authors present a precision measurement of the mass of the {Lambda}{sub c}{sup +} and studies of the production and decay of the {Omega}{sub c}{sup 0} and {Xi}{sub c}{sup 0} charm baryons using data collected by the BABAR experiment. To keep the systematic uncertainty as low as possible, the {Lambda}{sub c}{sup +} mass measurement is performed using the low Q-value decays, {Lambda}{sub c}{sup +} {yields} {Lambda}{sup 0} K{sub S}{sup 0}K{sup +} and {Lambda}{sub c}{sup +} {yields} {Sigma}{sup 0} K{sub S}{sup 0}K{sup +}. Several hadronic final states involving an {Omega}{sup -} and a {Xi}{sup -} hyperon are analyzed to reconstruct the {Xi}{sub c}{sup 0} and the {Omega}{sub c}{sup 0}.
A Study Of Xi C 2980 And Xi C 3077
DOWNLOAD
Author : B. Aubert
language : en
Publisher:
Release Date : 2006
A Study Of Xi C 2980 And Xi C 3077 written by B. Aubert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
We present a study of two states decaying to {Lambda}{sub c}{sup +} K{sup -} {pi}{sup +} using the BABAR detector at the SLAC PEP-II asymmetric-energy e{sup +}e{sup -} storage rings. We use an integrated luminosity of 288.5 fb{sup -1} collected at the center-of-mass energy {radical}s = 10.58 GeV, near the peak of the {Upsilon}(4S) resonance, plus 27.2 fb{sup -1} collected approximately 40MeV below this energy. We search for the particles {Xi}{sub c}(2980){sup +} and {Xi}{sub c}(3077){sup +}, recently discovered by the Belle Collaboration, in their decays to {Lambda}{sub c}{sup +}K{sup -}{pi}{sup +}, where {Lambda}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +}. We find a signal with 7.0{sigma} significance for the {Xi}{sub c}(2980){sup +} state with a mass difference with respect to the {Lambda}{sub c}{sup +} of (680.6 {+-} 1.9 {+-} 1.0)MeV/c{sup 2} (first error is statistical and second error is systematic). The measured width for this state is (23.6 {+-} 2.8 {+-} 1.3)MeV, and the yield is 284 {+-} 45 {+-} 46 events. We find a signal with 8.6{sigma} significance for the {Xi}{sub c}(3077){sup +} state with a mass difference with respect to the {Lambda}{sub c}{sup +} of (790.0 {+-} 0.7 {+-} 0.2) MeV/c{sup 2}, a width of (6.2 {+-} 1.6 {+-} 0.5)MeV, and a yield of 204 {+-} 35 {+-} 12 events. The {Xi}{sub c}(2980){sup +} is found to decay resonantly through the intermediate state {Sigma}{sub c}(2455){sup ++}K{sup -} with 4.9{sigma} significance and non-resonantly to {Lambda}{sub c}{sup +} with 4.1{sigma} significance. With 5.8{sigma} significance, the {Xi}{sub c}(3077){sup +} is found to decay resonantly through {Sigma}{sub c}(2455){sup ++}K{sup -}, and with 4.6{sigma} significance, it is found to decay through {Sigma}{sub c}(2520){sup ++}K{sup -}. The significance of the signal for the non-resonant decay {Xi}{sub c}(3077){sup +} {yields} {Lambda}{sub c}{sup +} K{sup -} {pi}{sup +} is 1.4{sigma}. These results are preliminary.
Observation And Measurement Of B0 To Lambda Lambda Bar K0 And B0 To Lambda Lambda Bar K 0 Decays At Belle
DOWNLOAD
Author : 張育瑋
language : en
Publisher:
Release Date : 2008
Observation And Measurement Of B0 To Lambda Lambda Bar K0 And B0 To Lambda Lambda Bar K 0 Decays At Belle written by 張育瑋 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
High Precision Measurements Of The Mass Intrinsic Width Momentum Spectrum And The Branching Fractions Of Lambda Subscript C 2880 Decay Modes In The Babar Experiment
DOWNLOAD
Author : Samya Bano Zain
language : en
Publisher:
Release Date : 2006
High Precision Measurements Of The Mass Intrinsic Width Momentum Spectrum And The Branching Fractions Of Lambda Subscript C 2880 Decay Modes In The Babar Experiment written by Samya Bano Zain and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Baryons categories.
A Precision Measurement Of The Lambda C Baryon Mass
DOWNLOAD
Author : J. C. Chen
language : en
Publisher:
Release Date : 2005
A Precision Measurement Of The Lambda C Baryon Mass written by J. C. Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The {Lambda}{sub c}{sup +} baryon mass is measured using {Lambda}{sub c}{sup +} {yields} {Lambda}K{sub S}{sup 0}K{sup +} and {Lambda}{sub c}{sup +} {yields} {Sigma}{sup 0}K{sub S}{sup 0}K{sup +} decays reconstructed in 232 fb{sup -1} of data collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} storage ring. The {Lambda}{sub c}{sup +} mass is measured to be 2286.46 {+-} 0.14 MeV/c{sup 2}. The dominant systematic uncertainties arise from the amount of material in the tracking volume and from the magnetic field strength.