Abstract
It has long been known that nonstrange baryon-meson scattering in the 1 / Nc expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order amplitudes satisfy the selection rule It = Jt. We show that It = Jt, as well as Yt = 0, also hold for the leading amplitudes when the baryon and/or meson contain strange quarks, and also characterize their 1 / Nc corrections, thus opening a new front in the phenomenological study of baryon-meson scattering and baryon resonances.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 68-73 |
| Number of pages | 6 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 639 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 3 2006 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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The large Nc baryon-meson It = Jt rule holds for three flavors. / Lebed, Richard.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 639, No. 2, 03.08.2006, p. 68-73.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The large Nc baryon-meson It = Jt rule holds for three flavors
AU - Lebed, Richard
PY - 2006/8/3
Y1 - 2006/8/3
N2 - It has long been known that nonstrange baryon-meson scattering in the 1 / Nc expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order amplitudes satisfy the selection rule It = Jt. We show that It = Jt, as well as Yt = 0, also hold for the leading amplitudes when the baryon and/or meson contain strange quarks, and also characterize their 1 / Nc corrections, thus opening a new front in the phenomenological study of baryon-meson scattering and baryon resonances.
AB - It has long been known that nonstrange baryon-meson scattering in the 1 / Nc expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order amplitudes satisfy the selection rule It = Jt. We show that It = Jt, as well as Yt = 0, also hold for the leading amplitudes when the baryon and/or meson contain strange quarks, and also characterize their 1 / Nc corrections, thus opening a new front in the phenomenological study of baryon-meson scattering and baryon resonances.
UR - http://www.scopus.com/inward/record.url?scp=33745931383&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745931383&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2006.06.014
DO - 10.1016/j.physletb.2006.06.014
M3 - Article
AN - SCOPUS:33745931383
VL - 639
SP - 68
EP - 73
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 2
ER -