scholarly journals Measuring the Strangeness Content of the Nucleon by Observing the ϕ-Meson Mass Shift in Nuclear Matter

2015 ◽  
Author(s):  
Philipp Gubler ◽  
Keisuke Ohtani
Keyword(s):  
Nuclear Matter ◽  
Mass Shift ◽  
Meson Mass ◽  
Strangeness Content

VECTOR MESON MODIFICATION IN NUCLEAR MATTER AT CLAS

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2417-2420 ◽  
Author(s):  
CHADEN DJALALI ◽  
MIKE WOOD ◽  
RAKHSHA NASSERIPOUR ◽  
DENNIS WEYGAND ◽  
The CLAS COLLABORATION
Keyword(s):  
Vector Meson ◽  
Nuclear Matter ◽  
Leptonic Decay ◽  
Meson Mass ◽  
Combinatorial Background ◽  
Vector Mesons ◽  
Jefferson Lab ◽  
Mass Distributions ◽  
Collisional Broadening ◽  
Large Acceptance

Photoproduction of vector mesons off nuclei were performed at Jefferson Lab using the CEBAF Large Acceptance Spectrometer (CLAS). The properties of the ρ vector mesons were investigated via their rare leptonic decay to e+e−. After subtracting the combinatorial background, the ρ meson mass distributions were extracted for each of the targets. We observe no effects on the mass of the ρ meson, some widening in titanium and iron is observed consistent with the collisional broadening.

scholarly journals QUARKONIUM CHROMO-POLARIZABILITY FROM THE DECAYS J/ψ(ϒ)→ππℓ+ℓ-

2004 ◽  
Vol 19 (09) ◽  
pp. 665-670 ◽  
Author(s):  
M. B. VOLOSHIN
Keyword(s):  
Nuclear Matter ◽  
Quark Mass ◽  
Mass Shift ◽  
Soft Gluon ◽  
Electric Interaction ◽  
Precision Determination ◽  
B Quark

It is pointed out that the diagonal amplitude of the E1–E1 chromo-electric interaction with soft gluon fields (chromo-polarizability) can be measured directly for the J/ψ and ϒ resonances in the decays J/ψ→ππℓ+ℓ- and ϒ→ππℓ+ℓ- with soft pions. For the J/ψ this amplitude is often discussed in connection with the J/ψ interaction with nuclear matter, while for the ϒ the chromo-polarizability enters the estimates of the nonperturbative mass shift of the resonance relevant to precision determination of the b quark mass from the ϒ mass.

scholarly journals Effects of meson mass decrease on superfluidity in nuclear matter

1999 ◽  
Vol 445 (3-4) ◽  
pp. 254-258 ◽  
Author(s):  
Masayuki Matsuzaki ◽  
Tomonori Tanigawa
Keyword(s):  
Nuclear Matter ◽  
Meson Mass

scholarly journals ϕ meson mass and decay width in nuclear matter and nuclei

2017 ◽  
Vol 771 ◽  
pp. 113-118 ◽  
Author(s):  
J.J. Cobos-Martínez ◽  
K. Tsushima ◽  
G. Krein ◽  
A.W. Thomas
Keyword(s):  
Nuclear Matter ◽  
Decay Width ◽  
Meson Mass

scholarly journals Holographic meson mass splitting in the nuclear matter

2013 ◽  
Vol 2013 (8) ◽  
Author(s):  
Bum-Hoon Lee ◽  
Shahin Mamedov ◽  
Siyoung Nam ◽  
Chanyong Park
Keyword(s):  
Nuclear Matter ◽  
Mass Splitting ◽  
Meson Mass

scholarly journals J/Ψ mass shift in nuclear matter

2011 ◽  
Vol 697 (2) ◽  
pp. 136-141 ◽  
Author(s):  
G. Krein ◽  
A.W. Thomas ◽  
K. Tsushima
Keyword(s):  
Nuclear Matter ◽  
Mass Shift
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