χc0 (3915) as the lightest c c s s state χc0 (3915)

Richard Lebed, Antonio D. Polosa

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The state χc0(3915) has recently been demoted by the Particle Data Group from its previous status as the conventional cc 23P0 state, largely due to the absence of expected DD decays. We propose that χc0(3915) is actually the lightest ccss state, and calculate the spectrum of such states using the diquark model, identifying many of the observed charmoniumlike states that lack open-charm decay modes as ccss. Among other results, we argue that Y(4140) is a JPC=1++ ccss state that has been not been seen in two-photon fusion largely as a consequence of the Landau-Yang theorem.

Original languageEnglish (US)
Article number094024
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume93
Issue number9
DOIs
StatePublished - May 23 2016

Fingerprint

decay
theorems
fusion
photons

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

χc0 (3915) as the lightest c c s s state χc0 (3915). / Lebed, Richard; Polosa, Antonio D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 93, No. 9, 094024, 23.05.2016.

Research output: Contribution to journalArticle

@article{c6794834292b4a2b9225822614d4c3a1,
title = "χc0 (3915) as the lightest c c s s state χc0 (3915)",
abstract = "The state χc0(3915) has recently been demoted by the Particle Data Group from its previous status as the conventional cc 23P0 state, largely due to the absence of expected DD decays. We propose that χc0(3915) is actually the lightest ccss state, and calculate the spectrum of such states using the diquark model, identifying many of the observed charmoniumlike states that lack open-charm decay modes as ccss. Among other results, we argue that Y(4140) is a JPC=1++ ccss state that has been not been seen in two-photon fusion largely as a consequence of the Landau-Yang theorem.",
author = "Richard Lebed and Polosa, {Antonio D.}",
year = "2016",
month = "5",
day = "23",
doi = "10.1103/PhysRevD.93.094024",
language = "English (US)",
volume = "93",
journal = "Physical review D: Particles and fields",
issn = "1550-7998",
publisher = "American Institute of Physics Publising LLC",
number = "9",

}

TY - JOUR

T1 - χc0 (3915) as the lightest c c s s state χc0 (3915)

AU - Lebed, Richard

AU - Polosa, Antonio D.

PY - 2016/5/23

Y1 - 2016/5/23

N2 - The state χc0(3915) has recently been demoted by the Particle Data Group from its previous status as the conventional cc 23P0 state, largely due to the absence of expected DD decays. We propose that χc0(3915) is actually the lightest ccss state, and calculate the spectrum of such states using the diquark model, identifying many of the observed charmoniumlike states that lack open-charm decay modes as ccss. Among other results, we argue that Y(4140) is a JPC=1++ ccss state that has been not been seen in two-photon fusion largely as a consequence of the Landau-Yang theorem.

AB - The state χc0(3915) has recently been demoted by the Particle Data Group from its previous status as the conventional cc 23P0 state, largely due to the absence of expected DD decays. We propose that χc0(3915) is actually the lightest ccss state, and calculate the spectrum of such states using the diquark model, identifying many of the observed charmoniumlike states that lack open-charm decay modes as ccss. Among other results, we argue that Y(4140) is a JPC=1++ ccss state that has been not been seen in two-photon fusion largely as a consequence of the Landau-Yang theorem.

UR - http://www.scopus.com/inward/record.url?scp=84971324049&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84971324049&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.93.094024

DO - 10.1103/PhysRevD.93.094024

M3 - Article

AN - SCOPUS:84971324049

VL - 93

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 9

M1 - 094024

ER -