INCLUSIVE CHARGED KAON PRODUCTION FROM B MESONS IN ϒ(4S) DECAYS

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 472-474
Author(s):  
◽  
STEPHEN RICHICHI
Keyword(s):  
B Mesons ◽  
Secondary Electron ◽  
Momentum Spectrum ◽  
Particle Identification ◽  
Inclusive Production ◽  
Charged Kaon ◽  
Kaon Production ◽  
Minimization Technique ◽  
Kaon Momentum

We have investigated the inclusive production of charged kaons from B mesons in ϒ (4S) decays. We present our results (up to 800 MeV/c) of the measurement of the charged kaon momentum spectrum, using information from the specific ionization (dE/dx) particle identification (PID) device. We fit PID histograms with known samples of primary (pion, kaon, proton) and secondary (electron, muon) control shape histograms, using a χ2 minimization technique. We compare our findings with ARGUS and with MC and comment on the implications for b → s g from the analsis.

Antiproton and Charged Kaon Production in $\sqrt{s_{NN}}$ = 130 GeV Au+Au Collisions at RHIC

2002 ◽  
Vol 15 (3-4) ◽  
pp. 237-245
Author(s):  
Olga Barannikova ◽  
STAR Collaboration
Keyword(s):  
Charged Kaon ◽  
Kaon Production

scholarly journals Charged kaon production by coherent scattering of neutrinos and antineutrinos on nuclei

2013 ◽  
Vol 87 (1) ◽  
Author(s):  
L. Alvarez-Ruso ◽  
J. Nieves ◽  
I. Ruiz Simo ◽  
M. Valverde ◽  
M. J. Vicente Vacas
Keyword(s):  
Coherent Scattering ◽  
Charged Kaon ◽  
Kaon Production

scholarly journals Charged kaon production in S-W collisions at 200 GeV/c per nucleon

1995 ◽  
Vol 355 (1-2) ◽  
pp. 401-405 ◽  
Author(s):  
S. Abatzis ◽  
A. Andrighetto ◽  
F. Antinori ◽  
R.P. Barnes ◽  
A.C. Bayes ◽  
...  
Keyword(s):  
Charged Kaon ◽  
Kaon Production ◽  
200 Gev

Charged kaon production in tau decays at LEP

1994 ◽  
Vol 334 (3-4) ◽  
pp. 435-449 ◽  
Author(s):  
P. Abreu ◽  
W. Adam ◽  
T. Adye ◽  
E. Agasi ◽  
I. Ajinenko ◽  
...  
Keyword(s):  
Charged Kaon ◽  
Kaon Production ◽  
Tau Decays

New results on strange and multistrange baryon production and charged kaon production in sulphur sulphur interactions at 200 GeV/c per nucleon

1995 ◽  
Author(s):  
S. Abatzis ◽  
E. Andersen ◽  
A. Andrighetto ◽  
F. Antinori ◽  
R. P. Barnes ◽  
...  
Keyword(s):  
Charged Kaon ◽  
Baryon Production ◽  
Kaon Production ◽  
200 Gev

scholarly journals THE NA62 EXPERIMENT AT CERN AND THE MEASUREMENT OF THE ULTRA-RARE DECAY K+-π+v¯v

2013 ◽  
Vol 53 (A) ◽  
pp. 814-816
Author(s):  
Antonella Antonelli
Keyword(s):  
Rare Decay ◽  
Large Angle ◽  
Branching Ratio ◽  
Particle Identification ◽  
Lead Glass ◽  
Good Resolution ◽  
Kaon Decays ◽  
Level Zero ◽  
Zero Rate ◽  
Kaon Momentum

The NA62 experiment at CERN aims at the very challenging task of measuring with 10% relative error the Branching Ratio of the ultra-rare decay of the K<sup>+</sup> into π<sup>+</sup> ν¯ν which is expected to occur only in about 8 out of 10<sup>11</sup> Kaon decays. This will be achieved by means of an intense hadron beam, an accurate kinematical reconstruction and a redundant veto system for identifying and suppressing all spurious events. Good resolution on the missing mass in the decay is achieved using a high-resolution beam tracker to measure the kaon momentum and with a spectrometer equipped with straw tubes operating in vacuum. Hermetic veto (up to 50 mrad) of the photon from π<sup>0</sup> decays is achieved with a combination of large angle veto (with a creative reuse of the old OPAL lead glass blocks), the NA48 liquid Krypton calorimeter and two small angle calorimeters to cover the angle down to zero. The identification of the muons and the consequent veto is performed by a fast hodoscope plane (used in the first level of the trigger to reduce the rate) and by a 17 meter, neon-filled RICH counter which is able to separate pions and muons in the momentum interval between 15 and 35 GeV. Particle identification in the beam (K<sup>+</sup> separation) is achieved with an H2 differential Cherenkov counter. The trigger for the experiment is based on a multilevel structure with a first level implemented in the readout boards and with the subsequent level done in the software. The aim is to reduce the 10MHz level zero rate to a few kHz sent to the CERN computing centre. Studies are underway to use GPU boards in some key point of the trigger system to improve the performance.<p> </p>

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