Exploratory study of χc1(4140) and like states in QCD sum rules

Name: Exploratory study of χc1(4140) and like states in QCD sum rules
Author: Türkan, Arzu, Dağ, Hüseyin

İsim	Exploratory study of χc1(4140) and like states in QCD sum rules
Yazar	Türkan, Arzu, Dağ, Hüseyin
Basım Tarihi:	2019-05
Basım Yeri	- Elsevier
Konu	Exotic hadrons, QCD phenomenology, QCD sum rules, X(4140)
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0375-9474
Kayıt Numarası	64c19fd6-12f8-47cf-9dc5-b588ee4e46c8
Lokasyon	Natural and Mathematical Sciences
Tarih	2019-05
Örnek Metin	In this work, we chose three molecular and three diquark-antidiquark currents with the quark content c (c) over bars (s) over bar and J(PC) = 0(++), 1(++), 2(++), and estimated the masses and the meson coupling constants of the ground states coupling to these currents in the framework of QCD sum rules. In operator product expansion, we considered the terms including dimension eight, and we performed pole contribution tests carefully. According to our results, all of these currents couple to the ground states with degenerate masses which are in 10 MeV vicinity of chi(c1) (4140). Therefore, with a QCD sum rules analysis, it is not possible to conclude that chi(c1) (4140) has a dominant molecular or diquark-antidiquark content. However, there may be three states degenerate in mass, with positive charge conjugation and different isospins.
DOI	10.1016/j.nuclphysa.2019.01.011
Cilt	985

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Exploratory study of χc1(4140) and like states in QCD sum rules

Yazar Türkan, Arzu, Dağ, Hüseyin

Basım Tarihi 2019-05

Basım Yeri - Elsevier

Konu Exotic hadrons, QCD phenomenology, QCD sum rules, X(4140)

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0375-9474

Kayıt Numarası 64c19fd6-12f8-47cf-9dc5-b588ee4e46c8

Lokasyon Natural and Mathematical Sciences

Tarih 2019-05

Örnek Metin In this work, we chose three molecular and three diquark-antidiquark currents with the quark content c (c) over bars (s) over bar and J(PC) = 0(++), 1(++), 2(++), and estimated the masses and the meson coupling constants of the ground states coupling to these currents in the framework of QCD sum rules. In operator product expansion, we considered the terms including dimension eight, and we performed pole contribution tests carefully. According to our results, all of these currents couple to the ground states with degenerate masses which are in 10 MeV vicinity of chi(c1) (4140). Therefore, with a QCD sum rules analysis, it is not possible to conclude that chi(c1) (4140) has a dominant molecular or diquark-antidiquark content. However, there may be three states degenerate in mass, with positive charge conjugation and different isospins.

DOI 10.1016/j.nuclphysa.2019.01.011

Cilt 985