Subthreshold<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>ρ</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>photoproduction on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:math>

Kagarlis, M. A.; Papandreou, Z.; Huber, G. M.; Lolos, G. J.; Shinozaki, Ayako; Brash, E. J.; Farzanpay, F.; Iurescu, M.; Weinerman, A.; Garino, G.; Maruyama, Koichi; Konno, O.; Maeda, K.; Terasawa, T.; Yamazaki, H.; Emura, T.; Hirosawa, H.; Niwa, K.; Yamashita, H.; Endo, Satoru; Miyamoto, Koji; Sumi, Y.; Leone, A.; Perrino, R.; Mäki, T.; Sasaki, Akira; Kim, J. C.

doi:10.1103/physrevc.60.025203

Cited by 13 publications

(4 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various experiments suggest that the spectral functions of hadrons are modified in a dense nuclear environment [30][31][32][33][34][35][36]. The enhancement of lepton pair yield in CERES data [37] below the ρ-mass can only be explained by assuming the in-medium modifications of the ρ meson [38][39][40][41].…”

Section: Photon Spectramentioning

confidence: 99%

Thermal radiation from Au+Au collisions at GeV energy

Alam

Nayak

Roy

et al. 2007

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

The transverse momentum distribution of the direct photons measured by the PHENIX collaboration in Au + Au collisions at √ s N N = 200 GeV/A has been analyzed. It has been shown that the data can be reproduced reasonably well assuming a deconfined state of thermalized quarks and gluons with initial temperature more than the transition temperature for deconfinement inferred from lattice QCD. The value of the initial temperature depends on the equation of state of the evolving matter. The sensitivities of the results on various input parameters have been studied. The effects of the modifications of hadronic properties at non-zero temperature have been discussed.

show abstract

Section: Photon Spectramentioning

confidence: 99%

Thermal radiation from Au+Au collisions at GeV energy

Alam

Nayak

Roy

et al. 2007

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

show abstract

“…For many years pion beams have provided a unique probe for the study of nuclei with considerable success. Lately, the possibility has been raised that virtual pions may also be useful as a complementary probe [1]. Coherent pion production in nuclei has often been likened to elastic pion scattering [2] and may be utilized as an effective virtual pion source.…”

mentioning

confidence: 99%

Virtual pion scattering

Kagarlis

Дмитриев

1997

Physics Letters B

View full text Add to dashboard Cite

We propose a theory which exploits the charge-exchange reactions ( 3 He, 3 Hπ + ) and (p,nπ + ) as effective sources of virtual pions. We consider processes in which the creation of virtual pions is followed by conventional coupled-channel pion scattering to discrete nuclear states. This picture allows us to incorporate successful theories of pion scattering and utilize virtual pions as probes of the nuclear matter. For coherent pion production we clearly demonstrate that the shift of the coherent peak position in the excitation function of 3 He-A relative to 3 He-N scattering is determined entirely by the pion nucleus rescattering.

show abstract

“…-scaling ansatz [16]. In our event generator (PLUTO [17] ) meson production was hence mod- eled assuming emission from a thermal source with a temperature T 80 MeV, but no radial expansion velocity ( r 0). Furthermore, for the 0 mesons, an anisotropic angular distribution of the type dN=d cos CM 1 a 2 cos 2 CM with a 2 0:7 was used, as deduced from our charged-pion analysis.…”

mentioning

confidence: 99%

Dielectron Production in C+C Collisions at 2 AGeV with HADES

Przygoda

2007

Nuclear Physics A

View full text Add to dashboard Cite

The invariant-mass spectrum of e e ÿ pairs produced in 12 C 12 C collisions at an incident energy of 2 GeV per nucleon has been measured for the first time. The measured pair production probabilities span over 5 orders of magnitude from the 0 -Dalitz to the =! invariant-mass region. Dalitz decays of 0 and account for all the yield up to 0:15 GeV=c 2 , but for only about 50% above this mass. A comparison with model calculations shows that the excess pair yield is likely due to baryon-resonance and vector-meson decays. Transport calculations based on vacuum spectral functions fail, however, to describe the entire mass region.The properties of hot and dense hadronic matter represent a key problem in heavy-ion physics, with far-reaching applications for other fields. They are governed by nonperturbative QCD and cannot be derived directly from the underlying Lagrangian. Models predict that hadron properties, such as mass and lifetime, depend on the temperature and density of the medium. While some hadronic many-body calculations give a broadening of the meson PRL 98, 052302 (2007)

show abstract

Subthresholdρ0photoproduction on3He

Cited by 13 publications

References 44 publications

Thermal radiation from Au+Au collisions at GeV energy

Thermal radiation from Au+Au collisions at GeV energy

Virtual pion scattering

Dielectron Production in C+C Collisions at 2 AGeV with HADES

Contact Info

Product

Resources

About