Unitarity and vector meson contributions to K+->pi(+)gamma gamma (vol 386, pg 403, 1996)

被引：15

作者：

DAmbrosio, G

Portoles, J

机构：

来源：

PHYSICS LETTERS B | 1996年 / 389卷 / 04期

关键词：

D O I：

10.1016/S0370-2693(96)01476-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the one-loop unitarity corrections O(p(6)) from K+ --> pi(+)pi(+)pi(-) to K+ --> pi(+)gamma gamma and we find that they are relevant, increasing the leading order prediction for the width in a 30-40%. The contributions of local O(p(6)) amplitudes, generated by vector meson exchange, are discussed in several models and we conclude that the vector resonance contribution should be negligible compared to the unitarity corrections.

引用

页码：770 / 780

页数：11

共 42 条

[1] SEARCH FOR THE DECAY K+-]PI+GAMMA-GAMMA [J].

ATIYA, MS ;

CHIANG, IH ;

FRANK, JS ;

HAGGERTY, JS ;

ITO, MM ;

KYCIA, TF ;

LI, KK ;

LITTENBERG, LS ;

STEVENS, AJ ;

STRAND, RC ;

LOUIS, WC ;

AKERIB, DS ;

MARLOW, DR ;

MEYERS, PD ;

SELEN, MA ;

SHOEMAKER, FC ;

SMITH, AJS ;

AZUELOS, G ;

BLACKMORE, EW ;

BRYMAN, DA ;

FELAWKA, L ;

KITCHING, P ;

KUNO, Y ;

MACDONALD, JA ;

NUMAO, T ;

PADLEY, P ;

POUTISSOU, JM ;

POUTISSOU, R ;

ROY, J .

PHYSICAL REVIEW LETTERS, 1990, 65 (10) :1188-1191

[2] A MEASUREMENT OF THE DECAY KL -]PI-0-GAMMA-GAMMA [J].

BARR, GD ;

BUCHHOLZ, P ;

CAROSI, R ;

COWARD, D ;

CUNDY, D ;

DOBLE, N ;

GATIGNON, L ;

GRAFSTROM, P ;

HAGELBERG, R ;

NELSON, HN ;

WAHL, H ;

PEACH, KJ ;

BLUMER, H ;

HEINZ, R ;

KLEINKNECHT, K ;

MAYER, P ;

PANZER, B ;

RENK, B ;

ROHRER, H ;

WAGNER, A ;

AUGE, E ;

FOURNIER, D ;

ICONOMIDOUFAYARD, L ;

HARRUS, I ;

PERDEREAU, O ;

SCHAFFER, AC ;

SERIN, L ;

BERTANZA, L ;

BIGI, A ;

CALAFIURA, P ;

CALVETTI, M ;

CASALI, R ;

MANNELLI, IG ;

MARZULLI, VM ;

NAPPI, A ;

PIERAZZINI, G ;

HOLDER, M ;

KREUTZ, A ;

ROST, M ;

WERTHENBACH, R .

PHYSICS LETTERS B, 1992, 284 (3-4) :440-447

[3] STATUS AND PERSPECTIVES OF K DECAY PHYSICS [J].

BATTISTON, R ;

COCOLICCHIO, D ;

FOGLI, GL ;

PAVER, N .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1992, 214 (05) :293-338

[4] RARE KAON DECAYS IN THE 1/NC-EXPANSION [J].

BRUNO, C ;

PRADES, J .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993, 57 (04) :585-593

[5]

Buras A. J., 1992, ADV SERIES DIRECTION, V10, P58

[6] CORRECTIONS TO K-]PI-GAMMA-GAMMA FROM K-]3-PI [J].

CAPPIELLO, L ;

DAMBROSIO, G ;

MIRAGLIUOLO, M .

PHYSICS LETTERS B, 1993, 298 (3-4) :423-431

[7] KL-]PI-0-GAMMA-GAMMA DECAY IN THE CHIRAL EFFECTIVE LAGRANGIAN [J].

CAPPIELLO, L ;

DAMBROSIO, G .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1988, 99 (02) :155-161

[8] UNITARITY AND K(L)-]PI(0)GAMMA-GAMMA [J].

COHEN, AG ;

ECKER, G ;

PICH, A .

PHYSICS LETTERS B, 1993, 304 (3-4) :347-352

[9] Unitarity and vector meson contributions to K+->pi(+)gamma gamma [J].

DAmbrosio, G ;

Portoles, J .

PHYSICS LETTERS B, 1996, 386 (1-4) :403-412

[10] K-]PI-PI-GAMMA DECAYS - A SEARCH FOR NOVEL COUPLINGS IN KAON DECAYS [J].

DAMBROSIO, G ;

ISIDORI, G .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 65 (04) :649-656

← 1 2 3 4 5 →