Thermal mass shifts in open superstring models

Journal Article · Wed Jan 10 04:00:00 EST 1990 · International Journal of Modern Physics A; (USA)

DOI:https://doi.org/10.1142/S0217751X90000076· OSTI ID:6546685

Clavelli, P L; Elmfors, P; Harms, B; Skagerstam, B S; Stern, A ^[1]

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1. Dept. of Physics and Astronomy, Univ. of Alabama, Tuscaloosa, AL (US)

The authors investigate some thermodynamical properties of an open type I superstring model in six space-time dimensions. The model is free of tachyons at the tree level but acquires a tachyonic one-loop mass shift at zero-temperature. Even though the space-time supersymmetry is spontaneously broken, the asymptotic form of the fermionic and bosonic level densities are the same, i.e., there is a unique Hagedorn temperature T{sub H}. As expected, T{sub H} is a limiting temperature, i.e., the energy density of the string gas diverges at T = T{sub H}. The finite temperature one-loop correction to the mass of the scalar mesons, which are massless at three level, is calculated and is found to be finite for all temperatures. It is found that thermal corrections doe not stabilize the zero-temperature one-loop tachyonic mass shift of the model.

• OSTI ID: 6546685
• Journal Information: International Journal of Modern Physics A; (USA), Journal Name: International Journal of Modern Physics A; (USA) Vol. 5:1; ISSN IMPAE; ISSN 0217-751X
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSOLUTE ZERO TEMPERATURE
ASYMPTOTIC SOLUTIONS
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY DENSITY
EXTENDED PARTICLE MODEL
FERMIONS
HADRONS
MASS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUARK MODEL
SCALAR MESONS
SPACE-TIME
STRING MODELS
SUPERSYMMETRY
SYMMETRY
SYMMETRY BREAKING
TACHYONS
THERMODYNAMIC PROPERTIES
WILSON LOOP