Charmed hadron production in $\pi p$ and $Kp$ collisions and leading particle effect by constituent quark-diquark cascade model

1998 ◽  
Vol 2 (4) ◽  
pp. 733-740 ◽  
Author(s):  
Tsutomu Tashiro ◽  
Hujio Noda ◽  
Shin-ichi Nakariki ◽  
Kazuo Ishii ◽  
Kisei Kinoshita
Keyword(s):  
Constituent Quark ◽  
Hadron Production ◽  
Cascade Model ◽  
Charmed Hadron ◽  
Particle Effect ◽  
Leading Particle

HYPERON POLARIZATION IN QUARK-DIQUARK CASCADE MODEL

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2344-2349
Author(s):  
TSUTOMU TASHIRO ◽  
HUJIO NODA ◽  
SHIN-ICHI NAKARIKI ◽  
KAZUMI FUKUMA
Keyword(s):  
Wave Function ◽  
Constituent Quark ◽  
Valence Quark ◽  
Cascade Model ◽  
Proton Proton ◽  
Particle Effect ◽  
Quantization Axis ◽  
Leading Particle

We relate the hyperon polarizations in proton-proton and proton-nucleus collisions to the leading particle effect and use the constituent quark-diquark cascade model with SU(6) wave function. We assume that the quantization axis is characterized by the production normal of the leading baryon of the most massive cascade chain and the incident valence diquark tends to pick up a spin down sea quark or conversely a sea diquark preferentially combines with the spin up incident valence quark to form a leading baryon as compared with the spin down valence quark.

scholarly journals LEADING EFFECTS IN HADROPRODUCTIONS OF ΛcAND D FROM CONSTITUENT QUARK–DIQUARK CASCADE PICTURE

2004 ◽  
Vol 19 (04) ◽  
pp. 599-611 ◽  
Author(s):  
TSUTOMU TASHIRO ◽  
SHIN-ICHI NAKARIKI ◽  
HUJIO NODA ◽  
KISEI KINOSHITA ◽  
SHUXIN LAN
Keyword(s):  
Constituent Quark ◽  
Valence Quark ◽  
Cascade Model

We discuss the hadroproductions of Λc, [Formula: see text], D and [Formula: see text] in the framework of the constituent quark–diquark cascade model taking into account the valence quark annihilation. The spectra of Λcand [Formula: see text] in pA, Σ-A and π-A collisions are well explained by the model using the values of parameters used in hadroproductions of D and [Formula: see text]. It is shown that the role of valence diquark in the incident baryon is important for [Formula: see text] productions as well as for Λcproduction.

scholarly journals CHARMED HADRON PRODUCTION AT RHIC

2003 ◽  
Vol 18 (08) ◽  
pp. 1481-1484
Author(s):  
KAZUMASA OHKUMA ◽  
TOSHIYUKI MORII ◽  
SATOSHI OYAMA
Keyword(s):  
Gluon Distribution ◽  
Spin Correlation ◽  
Hadron Production ◽  
Charmed Hadron ◽  
Extract Information ◽  
Polarized Gluon

To extract information about polarized gluon distribution in the proton, charmed hadron, actually [Formula: see text], productions at RHIC experiment are studied. We found that the spin correlation asymmetry between the initial proton and the produced [Formula: see text] is enable us to distinguish parameterization models of polarized gluons.

On the origin of the leading-particle effect in high-energy hadronic processes

1981 ◽  
Vol 62 (3) ◽  
pp. 238-252 ◽  
Author(s):  
M. Giffon ◽  
E. Predazzi
Keyword(s):  
High Energy ◽  
Particle Effect ◽  
Leading Particle
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