Abstract
We investigate whether coherent flavor conversion of neutrinos in a neutrino background is substantially modified by many-body effects, with respect to the conventional one-particle effective description. We study the evolution of a system of interacting neutrino plane waves in a box. Using its equivalence to a system of spins, we determine the character of its behavior completely analytically. We find that, if the neutrinos are initially in flavor eigenstates, no coherent flavor conversion is realized, in agreement with the effective one-particle description. This result does not depend on the size of the neutrino wavepackets and therefore has a general character. The validity of the several important applications of the one-particle formalism is thus confirmed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1079-1100 |
| Number of pages | 22 |
| Journal | Journal of High Energy Physics |
| Volume | 7 |
| Issue number | 10 |
| State | Published - Oct 1 2003 |
| Externally published | Yes |
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Keywords
- Neutrino and Gamma Astronomy
- Neutrino Physics
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Do many-particle neutrino interactions cause a novel coherent effect? / Friedland, Alexander; Lunardini, Cecilia.
In: Journal of High Energy Physics, Vol. 7, No. 10, 01.10.2003, p. 1079-1100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Do many-particle neutrino interactions cause a novel coherent effect?
AU - Friedland, Alexander
AU - Lunardini, Cecilia
PY - 2003/10/1
Y1 - 2003/10/1
N2 - We investigate whether coherent flavor conversion of neutrinos in a neutrino background is substantially modified by many-body effects, with respect to the conventional one-particle effective description. We study the evolution of a system of interacting neutrino plane waves in a box. Using its equivalence to a system of spins, we determine the character of its behavior completely analytically. We find that, if the neutrinos are initially in flavor eigenstates, no coherent flavor conversion is realized, in agreement with the effective one-particle description. This result does not depend on the size of the neutrino wavepackets and therefore has a general character. The validity of the several important applications of the one-particle formalism is thus confirmed.
AB - We investigate whether coherent flavor conversion of neutrinos in a neutrino background is substantially modified by many-body effects, with respect to the conventional one-particle effective description. We study the evolution of a system of interacting neutrino plane waves in a box. Using its equivalence to a system of spins, we determine the character of its behavior completely analytically. We find that, if the neutrinos are initially in flavor eigenstates, no coherent flavor conversion is realized, in agreement with the effective one-particle description. This result does not depend on the size of the neutrino wavepackets and therefore has a general character. The validity of the several important applications of the one-particle formalism is thus confirmed.
KW - Neutrino and Gamma Astronomy
KW - Neutrino Physics
UR - http://www.scopus.com/inward/record.url?scp=23044501256&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23044501256&partnerID=8YFLogxK
M3 - Article
VL - 7
SP - 1079
EP - 1100
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 10
ER -