INCLUSIVE PHOTON PRODUCTION FROM P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV

被引：0

作者：

ALEXOPOULOS, T

ALLEN, C

ANDERSON, EW

BALAMURALI, V

BANERJEE, S

BEERY, PD

BHAT, P

BISHOP, JM

BISWAS, NN

BUJAK, A

CARMONY, DD

CARTER, T

CHOI, Y

COLE, P

DEBONTE, R

DECARLO, V

ERWIN, AR

FINDEISEN, C

GOSHAW, AT

GUTAY, LJ

HIRSCH, AS

HOJVAT, C

JENNINGS, JR

KENNEY, VP

LINDSEY, CS

LOOMIS, C

LOSECCO, JM

MCMAHON, T

MCMANUS, AP

MORGAN, N

NELSON, K

OH, SH

PORILE, NT

REEVES, D

RIMAI, A

ROBERTSON, WJ

SCHARENBERG, RP

STAMPKE, SR

STRINGFELLOW, BC

THOMPSON, M

TURKOT, F

WALKER, WD

WANG, CH

WARCHOL, J

WESSON, DK

ZHAN, Y

机构：

[1] DEPAUW UNIV,DEPT PHYS,GREENCASTLE,IN 46135

[2] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907

[3] DUKE UNIV,DEPT PHYS,DURHAM,NC 27708

[4] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

[5] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[6] PURDUE UNIV,DEPT PHYS,W LAFAYETTE,IN 47907

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.71.1490

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a measurement of the inclusive production of low-energy photons from ppBAR collisions at square-root s = 1.8 TeV. A NaI calorimeter located near eta = 0 was used to measure the photon transverse momentum spectrum over the range 30 less-than-or-equal-to p(t) less-than-or-equal-to 5000 MeV/c. The data are compared to the photon production expected from known particle decays in an attempt to isolate a low-energy direct photon signal. We find no evidence for excess photons above those expected from hadron decays and place an upper limit of 16% (90% C.L.) on any excess direct photons in the p(t) range from 30 to 100 MeV/c.

引用

页码：1490 / 1493

页数：4

共 25 条

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