Research output: Contribution to journal › Article › peer-review
On the Discontinuities of Multiparticle Amplitudes. / Fadin, V. S.
In: JETP Letters, Vol. 122, No. 4, 02.10.2025, p. 203-207.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On the Discontinuities of Multiparticle Amplitudes
AU - Fadin, V. S.
N1 - This work was supported by ongoing funding of the Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences. No additional grants to carry out or direct this particular research were obtained. Fadin, V. S. On the Discontinuities of Multiparticle Amplitudes / V. S. Fadin // JETP Letters. – 2025. – Vol. 122, No. 4. – P. 203-207. – DOI 10.1134/S0021364025608048.
PY - 2025/10/2
Y1 - 2025/10/2
N2 - Currently, a generally accepted and widely used property of multiparticle amplitudes is the absence of simultaneous amplitude discontinuities on energy invariants of overlapping channels. The Steinmann relations are used to substantiate this property. The paper shows the presence of such discontinuities and the illegality of using the Steinmann relations to prove their absence. The existence of discontinuities means that the currently accepted form of multi-Regge amplitudes is erroneous and it should be taken into account when deriving the BFKL (Balitsky–Fadin–Kuraev–Lipatov) equation in the following approximations.
AB - Currently, a generally accepted and widely used property of multiparticle amplitudes is the absence of simultaneous amplitude discontinuities on energy invariants of overlapping channels. The Steinmann relations are used to substantiate this property. The paper shows the presence of such discontinuities and the illegality of using the Steinmann relations to prove their absence. The existence of discontinuities means that the currently accepted form of multi-Regge amplitudes is erroneous and it should be taken into account when deriving the BFKL (Balitsky–Fadin–Kuraev–Lipatov) equation in the following approximations.
UR - https://www.mendeley.com/catalogue/9c9256ae-467b-3712-8313-38b037737d22/
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105018518143&origin=inward
UR - https://www.elibrary.ru/item.asp?id=83009618
U2 - 10.1134/s0021364025608048
DO - 10.1134/s0021364025608048
M3 - Article
VL - 122
SP - 203
EP - 207
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 4
ER -
ID: 70966796