Determining the beta function of the strong interaction coupling and closing the light gluino window

被引：37

作者：

Csikor, F ^{[1
]}

Fodor, Z ^{[1
]}

机构：

[1] CERN, DIV THEORY, CH-1211 GENEVA 23, SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.78.4335

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the perturbative running of alpha(s) in a model independent way. Our analysis contains data on the hadronic tau decay and hadronic cross sections in e(+)e(-) annihilation between 5 GeV and M-Z. We determine the color coefficients and the perturbative beta function of the strong interaction. The results are in agreement with QCD and rule out the QCD + light gluino scenarios on the 70.8%-93.0% C.L. We combine our method with that of the multijet analysis at LEP. The combined result rules out light gluinos on the 99.76% C.L., provided that nonperturbative effects are not large.

引用

页码：4335 / 4338

页数：4

共 34 条

[1] A STUDY OF ULTRAVIOLET RENORMALON AMBIGUITIES IN THE DETERMINATION OF ALPHA(S) FROM TAU-DECAY [J].

ALTARELLI, G ;

NASON, P ;

RIDOLFI, G .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 68 (02) :257-267

[2] LEP DATA AND THE LIGHT GLUINO WINDOW [J].

ANTONIADIS, I ;

ELLIS, J ;

NANOPOULOS, DV .

PHYSICS LETTERS B, 1991, 262 (01) :109-112

[3]

BARATE R, CERNPPE97002

[4] Particles and field .1. Review of particle physics [J].

Barnett, RM ;

Carone, CD ;

Groom, DE ;

Trippe, TG ;

Wohl, CG ;

Armstrong, B ;

Gee, PS ;

Wagman, GS ;

James, F ;

Mangano, M ;

Monig, K ;

Montanet, L ;

Feng, JL ;

Murayama, H ;

Hernandez, JJ ;

Manohar, A ;

AguilarBenitez, M ;

Caso, C ;

Crawford, RL ;

Roos, M ;

Tornqvist, NA ;

Hayes, KG ;

Hagiwara, K ;

Nakamura, K ;

Tanabashi, M ;

Olive, K ;

Honscheid, K ;

Burchat, PR ;

Shrock, RE ;

Eidelman, S ;

Schindler, RH ;

Gurtu, A ;

Hikasa, K ;

Conforto, G ;

Workman, RL ;

Grab, C ;

Amsler, C .

PHYSICAL REVIEW D, 1996, 54 (01) :1-+

[5] DETERMINATION OF ALPHA-S AND SIN2-THETA-W FROM MEASUREMENTS OF THE TOTAL HADRONIC CROSS-SECTION IN E+E- ANNIHILATION [J].

BEHREND, HJ ;

BURGER, J ;

CRIEGEE, L ;

DAINTON, JB ;

FENNER, H ;

FIELD, JH ;

FRANKE, G ;

FUSTER, J ;

HOLLER, Y ;

MEYER, J ;

SCHRODER, V ;

SINDT, H ;

TIMM, U ;

WINTER, GG ;

ZIMMERMANN, W ;

BUSSEY, PJ ;

BUTTAR, C ;

CAMPBELL, AJ ;

HENDRY, D ;

MCCURRACH, G ;

SCARR, JM ;

SKILLICORN, IO ;

SMITH, KM ;

AHME, J ;

BLOBEL, V ;

FEINDT, M ;

HARJES, J ;

POPPE, M ;

SPITZER, H ;

APEL, WD ;

BOHRER, A ;

ENGLER, J ;

FLUGGE, G ;

FRIES, DC ;

FUES, W ;

GAMERDINGER, K ;

GROSSEWIESMANN, P ;

HANSMEYER, J ;

HOPP, G ;

JUNG, H ;

KNAPP, J ;

KRUGER, M ;

KUSTER, H ;

MAYER, P ;

MULLER, H ;

RANITZSCH, KH ;

SCHNEIDER, H ;

WOLF, J ;

DEBOER, W ;

BUSCHHORN, G .

PHYSICS LETTERS B, 1987, 183 (3-4) :400-411

[6] DECOUPLING OF HEAVY QUARKS IN THE MINIMAL SUBTRACTION SCHEME [J].

BERNREUTHER, W ;

WETZEL, W .

NUCLEAR PHYSICS B, 1982, 197 (02) :228-236

[7] RADIATIVE DECAY OF VECTOR QUARKONIUM - CONSTRAINTS ON GLUEBALLS AND LIGHT GLUINOS [J].

CAKIR, MB ;

FARRAR, GR .

PHYSICAL REVIEW D, 1994, 50 (05) :3268-3278

[8] SEARCH FOR GLUINOS [J].

CAMPBELL, BA ;

ELLIS, J ;

RUDAZ, S .

NUCLEAR PHYSICS B, 1982, 198 (01) :1-12

[9] Corrections of order alpha(3)(s) to R(had) in pQCD with light gluinos [J].

Chetyrkin, KG .

PHYSICS LETTERS B, 1997, 391 (3-4) :402-412

[10] Gluino contribution to the three-loop beta function in the minimal supersymmetric standard model [J].

Clavelli, L ;

Coulter, PW ;

Surguladze, LR .

PHYSICAL REVIEW D, 1997, 55 (07) :4268-4272

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