Studying diquark structure of heavy baryons in relativistic heavy ion collisions

S. Yasui; S. H. Lee; K. Ohnishi; I. K. Yoo; C. M. Ko

doi:10.1142/s0217732308029149

Studying diquark structure of heavy baryons in relativistic heavy ion collisions

S. Yasui, S. H. Lee, K. Ohnishi, I. K. Yoo, C. M. Ko

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We propose the enhancement of Λ_c yield in heavy ion collisions at RHIC and LHC as a novel signal for the existence of diquarks in the strongly coupled quark-gluon plasma produced in these collisions as well as in the Λ_c. Assuming that stable bound diquarks can exist in the quark-gluon plasma, we argue that the yield of Λ_c would be increased by two-body collisions between [ud] diquarks and c quarks, in addition to normal three-body collisions among u, d and c quarks. A quantitative study of this effect based on the coalescence model shows that including the contribution of diquarks to Λ_c production indeed leads to a substantial enhancement of the Λ_c/D ratio in heavy ion collisions.

Original language	English
Pages (from-to)	2254-2258
Number of pages	5
Journal	Modern Physics Letters A
Volume	23
Issue number	27-30
DOIs	https://doi.org/10.1142/s0217732308029149
Publication status	Published - 2008 Sept 30

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Astronomy and Astrophysics
Physics and Astronomy(all)

Access to Document

10.1142/s0217732308029149

Cite this

@article{b77acb79808241f4bee606f6dc267137,

title = "Studying diquark structure of heavy baryons in relativistic heavy ion collisions",

abstract = "We propose the enhancement of Λc yield in heavy ion collisions at RHIC and LHC as a novel signal for the existence of diquarks in the strongly coupled quark-gluon plasma produced in these collisions as well as in the Λc. Assuming that stable bound diquarks can exist in the quark-gluon plasma, we argue that the yield of Λc would be increased by two-body collisions between [ud] diquarks and c quarks, in addition to normal three-body collisions among u, d and c quarks. A quantitative study of this effect based on the coalescence model shows that including the contribution of diquarks to Λc production indeed leads to a substantial enhancement of the Λc/D ratio in heavy ion collisions.",

author = "S. Yasui and Lee, {S. H.} and K. Ohnishi and Yoo, {I. K.} and Ko, {C. M.}",

year = "2008",

month = sep,

day = "30",

doi = "10.1142/s0217732308029149",

language = "English",

volume = "23",

pages = "2254--2258",

journal = "Modern Physics Letters A",

issn = "0217-7323",

publisher = "World Scientific Publishing Co. Pte Ltd",

number = "27-30",

}

TY - JOUR

T1 - Studying diquark structure of heavy baryons in relativistic heavy ion collisions

AU - Yasui, S.

AU - Lee, S. H.

AU - Ohnishi, K.

AU - Yoo, I. K.

AU - Ko, C. M.

PY - 2008/9/30

Y1 - 2008/9/30

N2 - We propose the enhancement of Λc yield in heavy ion collisions at RHIC and LHC as a novel signal for the existence of diquarks in the strongly coupled quark-gluon plasma produced in these collisions as well as in the Λc. Assuming that stable bound diquarks can exist in the quark-gluon plasma, we argue that the yield of Λc would be increased by two-body collisions between [ud] diquarks and c quarks, in addition to normal three-body collisions among u, d and c quarks. A quantitative study of this effect based on the coalescence model shows that including the contribution of diquarks to Λc production indeed leads to a substantial enhancement of the Λc/D ratio in heavy ion collisions.

AB - We propose the enhancement of Λc yield in heavy ion collisions at RHIC and LHC as a novel signal for the existence of diquarks in the strongly coupled quark-gluon plasma produced in these collisions as well as in the Λc. Assuming that stable bound diquarks can exist in the quark-gluon plasma, we argue that the yield of Λc would be increased by two-body collisions between [ud] diquarks and c quarks, in addition to normal three-body collisions among u, d and c quarks. A quantitative study of this effect based on the coalescence model shows that including the contribution of diquarks to Λc production indeed leads to a substantial enhancement of the Λc/D ratio in heavy ion collisions.

UR - http://www.scopus.com/inward/record.url?scp=56149116655&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56149116655&partnerID=8YFLogxK

U2 - 10.1142/s0217732308029149

DO - 10.1142/s0217732308029149

M3 - Article

AN - SCOPUS:56149116655

SN - 0217-7323

VL - 23

SP - 2254

EP - 2258

JO - Modern Physics Letters A

JF - Modern Physics Letters A

IS - 27-30

ER -

Studying diquark structure of heavy baryons in relativistic heavy ion collisions

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this