The Investigation of Screening of Chromoelectric and Chromomagnetic Fields in Noncovariant Gauges

Elşen V. VELIEV; Jale Yilmazkaya SÜNGÜ

Makale detayları

The Investigation of Screening of Chromoelectric and Chromomagnetic Fields in Noncovariant Gauges

Yazarlar:

Elşen V. VELIEV | Jale Yilmazkaya SÜNGÜ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2006 Vol.30 Issue 2, pp.81-88

Belge Tipi:

Makale

Yayın Tarihi:

1/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000761389

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

According to Thermal Quantum Chromodynamics (TQCD) hadron  matter may exist in the form of quark-gluon plasma (QGP) at high  temperatures and densities.  The aim of the present work is to  investigate the screening of chromoelectric and chromomagnetic fields  in QGP in noncovariant gauges.  In noncovariant gauges, gluon  propagator has unphysical poles and singularities appear in the gluon  self-energy diagram calculations.  In this paper, we investigate gluon  self-energy in lightcone and temporal gauges.  In order to remove  singularities, we use the Mandelstam-Leibbrandt prescription (ML  prescription).  We obtain that chromoelectric fields are screened, but  chromomagnetic fields are not screened.  In coordinate space, the  screening of chromoelectric fields reduces the range of gauge  interactions.  In momentum space, it contributes to regulate the  infrared behavior of the various n-point Green functions.  Also, it is  shown that the obtained results are gauge invariant.

 

According to Thermal Quantum Chromodynamics (TQCD) hadron  matter may exist in the form of quark-gluon plasma (QGP) at high  temperatures and densities.  The aim of the present work is to  investigate the screening of chromoelectric and chromomagnetic fields  in QGP in noncovariant gauges.  In noncovariant gauges, gluon  propagator has unphysical poles and singularities appear in the gluon  self-energy diagram calculations.  In this paper, we investigate gluon  self-energy in lightcone and temporal gauges.  In order to remove  singularities, we use the Mandelstam-Leibbrandt prescription (ML  prescription).  We obtain that chromoelectric fields are screened, but  chromomagnetic fields are not screened.  In coordinate space, the  screening of chromoelectric fields reduces the range of gauge  interactions.  In momentum space, it contributes to regulate the  infrared behavior of the various n-point Green functions.  Also, it is  shown that the obtained results are gauge invariant.

Makale detayları

The Investigation of Screening of Chromoelectric and Chromomagnetic Fields in Noncovariant Gauges

Yazarlar:

Elşen V. VELIEV | Jale Yilmazkaya SÜNGÜ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2006 Vol.30 Issue 2, pp.81-88

Belge Tipi:

Makale

Yayın Tarihi:

1/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000761389

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Thermal Quantum Chromodynamics

Quark-gluon Plasma

Lightcone Gauge

Temporal Gauge

Mandelstam-Leibbrandt Prescription

Gluon Screening Masses.

Sayı

Makale detayları

The Investigation of Screening of Chromoelectric and Chromomagnetic Fields in Noncovariant Gauges

Yazarlar: Elşen V. VELIEV | Jale Yilmazkaya SÜNGÜ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2006 Vol.30 Issue 2, pp.81-88

Belge Tipi: Makale

Yayın Tarihi: 1/2006

Belge Dili: Türkçe

Document ID (Org No.): 2000761389

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Thermal Quantum Chromodynamics

Quark-gluon Plasma

Lightcone Gauge

Temporal Gauge

Mandelstam-Leibbrandt Prescription

Gluon Screening Masses.

Sayı

Yazarlar:

Elşen V. VELIEV | Jale Yilmazkaya SÜNGÜ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2006 Vol.30 Issue 2, pp.81-88

Belge Tipi:

Makale

Yayın Tarihi:

1/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000761389

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101