Determination of the longitudinal proton structure function F-L(x,Q(2)) at low x

被引：99

作者：

Adloff, C ^{[1
]}

Aid, S

Anderson, M

Andreev, V

Andrieu, B

Arndt, C

Babaev, A

Bahr, J

Ban, J

Ban, Y

Baranov, P

Barrelet, E

Barschke, R

Bartel, W

Barth, M

Bassler, U

Beck, HP

Beck, M

Behrend, HJ

Belousov, A

Berger, C

Bernardi, G

BertrandCoremans, G

Besancon, M

Beyer, R

Biddulph, P

Bispham, P

Bizot, JC

Blobel, V

Blumlein, J

Borras, K

Botterweck, P

Boudry, V

Braemer, A

Braunschweig, W

Brisson, V

Bruckner, W

Bruel, P

Bruncko, D

Brune, C

Buchholz, R

Bungener, L

Burger, J

Busser, FW

Buniatian, A

Burke, S

Burton, MJ

Calvet, D

Campbell, AJ

Carli, T

机构：

[1] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-5100 AACHEN, GERMANY

[2] UNIV BIRMINGHAM, SCH PHYS & SPACE RES, BIRMINGHAM B15 2TT, W MIDLANDS, ENGLAND

[3] FREE UNIV BRUSSELS, INTERUNIV INST HIGH ENERGIES, BRUSSELS, BELGIUM

[4] UNIV INSTELLING ANTWERP, B-2610 WILRIJK, BELGIUM

[5] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[6] INST PHYS NUCL, KRAKOW, POLAND

[7] UNIV CALIF DAVIS, DEPT PHYS, DAVIS, CA 95616 USA

[8] UNIV CALIF DAVIS, IIRPA, DAVIS, CA 95616 USA

[9] UNIV DORTMUND, INST PHYS, D-4600 DORTMUND, GERMANY

[10] CTR ETUD SACLAY, CEA, DSM, DAPNIA, F-91191 GIF SUR YVETTE, FRANCE

[11] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW, LANARK, SCOTLAND

[12] DESY, D-2000 HAMBURG, GERMANY

[13] UNIV HAMBURG, INST EXPT PHYS 1, HAMBURG, GERMANY

[14] UNIV HAMBURG, INST EXPT PHYS 2, HAMBURG, GERMANY

[15] MAX PLANCK INST KERNPHYS, D-69117 HEIDELBERG, GERMANY

[16] UNIV HEIDELBERG, INST PHYS, D-6900 HEIDELBERG, GERMANY

[17] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, HEIDELBERG, GERMANY

[18] CHRISTIAN ALBRECHTS UNIV KIEL, INST REINE & ANGEW KERNPHYS, D-2300 KIEL, GERMANY

[19] SLOVAK ACAD SCI, INST EXPT PHYS, KOSICE 04353, SLOVAKIA

[20] UNIV LANCASTER, SCH PHYS & CHEM, LANCASTER, ENGLAND

[21] UNIV LIVERPOOL, DEPT PHYS, LIVERPOOL L69 3BX, MERSEYSIDE, ENGLAND

[22] UNIV LONDON QUEEN MARY & WESTFIELD COLL, LONDON E1 4NS, ENGLAND

[23] LUND UNIV, DEPT PHYS, LUND, SWEDEN

[24] UNIV MANCHESTER, DEPT PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

[25] UNIV AIX MARSEILLE 2, CPPM, IN2P3, CNRS, F-13284 MARSEILLE 07, FRANCE

[26] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA

[27] PN LEBEDEV PHYS INST, MOSCOW 117924, RUSSIA

[28] MAX PLANCK INST PHYS & ASTROPHYS, D-80805 MUNICH, GERMANY

[29] UNIV PARIS 11, LAL, IN2P3, CNRS, ORSAY, FRANCE

[30] ECOLE POLYTECH, LPNHE, IN2P3, CNRS, PALAISEAU, FRANCE

[31] UNIV PARIS 06, LPNHE, PARIS, FRANCE

[32] UNIV PARIS 07, IN2P3, CNRS, PARIS, FRANCE

[33] ACAD SCI CZECH REPUBL, INST PHYS, PRAGUE, CZECH REPUBLIC

[34] CHARLES UNIV, NUCL CTR, PRAGUE, CZECH REPUBLIC

[35] UNIV ROMA 1, IST NAZL FIS NUCL, ROME, ITALY

[36] UNIV ROMA 3, DIPARTIMENTO FIS, ROME, ITALY

[37] PAUL SCHERRER INST, VILLIGEN, SWITZERLAND

[38] BERG UNIV GESAMTHSCH WUPPERTAL, FACHBEREICH PHYS, WUPPERTAL, GERMANY

[39] DESY, INST HOCHENERGIEPHYS, ZEUTHEN, GERMANY

[40] ETH ZURICH, INST TEILCHENPHYS, ZURICH, SWITZERLAND

[41] UNIV ZURICH, INST PHYS, ZURICH, SWITZERLAND

[42] HUMBOLDT UNIV BERLIN, INST PHYS, BERLIN, GERMANY

[43] BERG UNIV GESAMTHSCH WUPPERTAL, RECH ZENTRUM, WUPPERTAL, GERMANY

[44] UNIV ARIZONA, DEPT PHYS, TUCSON, AZ 85721 USA

来源：

PHYSICS LETTERS B | 1997年 / 393卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(96)01684-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A measurement of the inclusive cross section for the deep-inelastic scattering of positrons off protons at HERA is presented at momentum transfers 8.5 less than or equal to Q(2) less than or equal to 35 GeV2 and large inelasticity (y)=0.7, i.e. for the Bjorken-x range 0.00013 <x <0.00055. Using a next-to-leading order QCD fit to the structure function F-2 at lower y values, the contribution of F-2 to the measured cross section at high y is calculated and, by subtraction, the longitudinal structure function F-L is determined for the first time with an average value of F-L=0.52+/-0.03 (stat)(-0.22)(+0.25) (syst) at Q(2)=15.4 GeV2 and x=0.000243.

引用

页码：452 / 464

页数：13

共 30 条

[1] A measurement and QCD analysis of the proton structure function F-2(x,Q(2)) at HERA [J].

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arpagaus, M ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Beck, HP ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Bernet, R ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biddulph, P ;

Bispham, P ;

Bizot, JC ;

Blobel, V ;

Borras, K ;

Botterweck, F ;

Boudry, V ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Bruncko, D ;

Brune, C ;

Buchholz, R ;

Bungener, L ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Burton, MJ ;

Buschhorn, G ;

Campbell, AJ ;

Carli, T ;

Charles, F ;

Charlet, M ;

Clarke, D ;

Clegg, AB .

NUCLEAR PHYSICS B, 1996, 470 (1-2) :3-38

[2]

AID S, 1996, 9601 DESY

[3] TRANSVERSE-MOMENTUM OF JETS IN ELECTROPRODUCTION FROM QUANTUM CHROMODYNAMICS [J].

ALTARELLI, G ;

MARTINELLI, G .

PHYSICS LETTERS B, 1978, 76 (01) :89-94

[4] ASYMPTOTIC FREEDOM IN PARTON LANGUAGE [J].

ALTARELLI, G ;

PARISI, G .

NUCLEAR PHYSICS B, 1977, 126 (02) :298-318

[5] HECTOR 1.00 - A program for the calculation of QED, QCD and electroweak corrections to ep and l+/-N deep inelastic neutral and charged current scattering [J].

Arbuzov, A ;

Bardin, D ;

Blumlein, J ;

Kalinovskaya, L ;

Riemann, T .

COMPUTER PHYSICS COMMUNICATIONS, 1996, 94 (2-3) :128-184

[6] CHARGE-EXCHANGE (P)OVER-BAR-P-](N)OVER-BAR-N DIFFERENTIAL CROSS-SECTIONS BETWEEN 546 AND 1287 MEV/C [J].

AHMIDOUCH, A ;

HEER, E ;

HESS, R ;

LECHANOINELELUC, C ;

MASCARINI, C ;

RAPIN, D ;

BIRSA, R ;

BRADAMANTE, F ;

BRESSAN, A ;

DALLATORRECOLAUTTI, S ;

GIORGI, M ;

LAMANNA, M ;

MARTIN, A ;

PENZO, A ;

SCHIAVON, P ;

TESSAROTTO, F ;

MACCIOTTA, MP ;

MASONI, A ;

PUDDU, G ;

SERCI, S ;

ARVIEUX, J ;

BERTINI, R ;

KUNNE, RA ;

CATZ, H ;

FAIVRE, JC ;

PERROTKUNNE, F ;

AGNELLO, M ;

IAZZI, F ;

MINETTI, B ;

BRESSANI, T ;

CHIAVASSA, E ;

DEMARCO, N ;

MUSSO, A ;

PICCOTTI, A .

PHYSICS LETTERS B, 1995, 364 (02) :116-120

[7]

ARNEODO M, UNPUB NUCL PHYS B

[8] The H1 backward calorimeter BEMC and its inclusive electron trigger [J].

Ban, J ;

Bauhoff, W ;

Bruncko, D ;

Brune, C ;

Claassen, F ;

Duhm, HH ;

Eisen, E ;

Eschweiler, M ;

Ferencei, J ;

Fleischer, M ;

Gartner, W ;

Gennis, M ;

Glazov, A ;

Griebel, R ;

Guelck, C ;

Harning, M ;

Hartmann, T ;

Hoelzke, U ;

Javorek, M ;

Kasselmann, HP ;

Krasny, MW ;

Krivan, F ;

Krause, H ;

Koch, J ;

Kuhn, U ;

Kurca, T ;

Langkau, R ;

Lipka, M ;

Maracek, R ;

Matysek, M ;

Meier, K ;

Murin, P ;

Novak, T ;

Olszowska, J ;

Peppel, E ;

Pichler, C ;

Rathje, K ;

Reimer, P ;

Reinshagen, S ;

Scobel, W ;

Schirm, N ;

Schrader, C ;

Schrieber, S ;

Seman, M ;

Skvaril, P ;

Spalek, J ;

Wunderlich, R ;

Zarbock, D .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 372 (03) :399-414

[9]

BARDIN D, 1996, P WORKSH FUT PHYS HE, V1, P13

[10] A HIGH STATISTICS MEASUREMENT OF THE PROTON STRUCTURE FUNCTIONS F2(X,Q2) AND R FROM DEEP INELASTIC MUON SCATTERING AT HIGH Q2 [J].

BENVENUTI, AC ;

BOLLINI, D ;

BRUNI, G ;

CAMPORESI, T ;

MONARI, L ;

NAVARRIA, FL ;

ARGENTO, A ;

CVACH, J ;

LOHMANN, W ;

PIEMONTESE, L ;

ZAVADA, P ;

AKHUNDOV, AA ;

GENCHEV, VI ;

GOLUTVIN, IA ;

KIRYUSHIN, YT ;

KRIVOKHIZHIN, VG ;

KUKHTIN, VV ;

LEDNICKY, R ;

NEMECEK, S ;

REIMER, P ;

SAVIN, IA ;

SMIRNOV, GI ;

STRACHOTA, J ;

SULTANOV, G ;

TODOROV, P ;

VOLODKO, AG ;

JAMNIK, D ;

KOPP, R ;

MEYERBERKHOUT, U ;

STAUDE, A ;

TEICHERT, KM ;

TIRLER, R ;

VOSS, R ;

ZUPANCIC, C ;

CRIBIER, M ;

FELTESSE, J ;

MILSZTAJN, A ;

OURAOU, A ;

RICHHENNION, P ;

SACQUIN, Y ;

SMADJA, G ;

VIRCHAUX, M .

PHYSICS LETTERS B, 1989, 223 (3-4) :485-489

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