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Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
SYS 0217907 LBL 01285^^^^^2200217^^^450 005 20240516130217.3 014 $a 000358021800003 $2 CCC 014 $a 000358021800003 $2 WOS CC. SCIE 014 $a 2-s2.0-84939195441 $2 SCOPUS 017 70
$a 10.1103/PhysRevD.92.016003 $2 DOI 100 $a 20150805d2015 m y slo 03 ba 101 0-
$a eng 102 $a US 200 1-
$a Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition $f Matthias F. M. Lutz, Evgeni E. Kolomeitsev, C. L. Korpa $z eng 330 0-
$a We study the analytic structure of partial-wave amplitudes derived from u- and t-channel exchange processes. The latter plays a crucial role in dispersion-theory approaches to coupled-channel systems that model final state interactions in QCD. A general spectral representation is established that is valid in the presence of anomalous thresholds, decaying particles or overlapping left-hand and right-hand cut structures as it occurs frequently in hadron physics. The results are illustrated at hand of ten specific processes 463 -1
$1 001 umb_un_cat*0296986 $1 011 $a 2470-0010 $1 011 $a 2470-0029 $1 200 1 $a Physical Review D $e covering particles, fields, gravitation, and cosmology $v Vol. 92, no. 1 (2015), pp. 016003-1-016003-18 $1 210 $a Maryland $c American Physical Society $d 2015 606 0-
$3 umb_un_auth*0243507 $a čiastočné vlny 606 0-
$3 umb_un_auth*0000019 $a fyzika $X physics 606 0-
$3 umb_un_auth*0243508 $a partial wave 615 $n 53 $a Fyzika 675 $a 53 700 -1
$3 umb_un_auth*0143842 $a Lutz $b Matthias F. M. $4 070 $9 34 701 -1
$3 umb_un_auth*0131258 $a Kolomeitsev $b Evgeni E. $f 1970- $p UMBFP06 $9 33 $4 070 $T Katedra fyziky 701 -1
$3 umb_un_auth*0221969 $a Korpa $b C. L. $4 070 $9 33 801 $a SK $b BB301 $g AACR2 $9 unimarc sk T85 $x existuji fulltexy
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