GLORIA — GEOMAR Library Ocean Research Information Access

Hits per page

hit 1 - 1 | 1 hit

Sorting

Electronic Resource

Unitarity bounds for 4-fermion contact interactions (1993)

Anders, T. B. ; Mellenthin, R. ; Pfeil, B. ; [et al.]

Springer

Foundations of physics 23 (1993), S. 399-410

add to mindlist on the mindlist

Details

ISSN: 1572-9516

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract In this paper we consider the effect of unitarity bounds sb⩾s≡(E1+E2) cms 2 for the recently proposed types of nonderivative 4-fermion contact interactions. To this purpose we decompose the helicity amplitudes at c.m.s. into partial waves. The bounds are defined to hold for all reaction channels due to the same type of contact interaction. We find sb=τ4π/κ. Here κ is the coupling constant. The factor τ depends on the type of coupling and on the different cases to identify the fermions. It ranges from 1/3 to 4.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01883720

Permalink

	Location	Call Number	Limitation	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

hit 1 - 1 | 1 hit