Measurements of the branching fraction and decay distributions for KL→π±μ∓νγ and KL→π±e∓νγ -: art. no. 012001

被引：15

作者：

Alexopoulos, T ^{[1
]}

Andre, T

Arenton, M

Barbosa, RF

Barker, AR

Bellantoni, L

Bellavance, A

Blucher, E

Bock, GJ

Cheu, E

Childress, S

Coleman, R

Corcoran, MD

Cox, B

Erwin, AR

Ford, R

Glazov, A

Golossanov, A

Graham, J

Hamm, J

Hanagaki, K

Hsiung, YB

Huang, H

Jejer, V

Jensen, DA

Kessler, R

Kobrak, HGE

Kotera, K

LaDue, J

Ledovskoy, A

McBride, PL

Monnier, E

Nelson, KS

Nguyen, H

Niclasen, R

Prasad, V

Qi, XR

Ramberg, EJ

Ray, RE

Ronquest, M

Santos, E

Shanahan, P

Shields, J

Slater, W

Smith, D

Solomey, N

Swallow, EC

Toale, PA

Tschirhart, R

Wah, YW

机构：

[1] Univ Wisconsin, Madison, WI 53706 USA

[2] Univ Arizona, Tucson, AZ 85721 USA

[3] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[4] Univ Calif San Diego, La Jolla, CA 92093 USA

[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[6] Univ Colorado, Boulder, CO 80309 USA

[7] Elmhurst Coll, Elmhurst, IL 60126 USA

[8] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[9] Osaka Univ, Osaka 5600043, Japan

[10] Rice Univ, Houston, TX 77005 USA

[11] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA

[12] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22901 USA

[13] Univ Sao Paulo, Sao Paulo, Brazil

[14] CNRS, CPP Marseille, F-75700 Paris, France

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.71.012001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of R(Kl3gamma)equivalent toGamma(K-L-->pi(+/-)l(-/+)nugamma;E-gamma(star)>10 MeV)/Gamma(K-L-->pi(+/-)l(-/+)nu), where l=mu or e, and E-gamma(star) is the photon energy in the kaon rest frame. These measurements are based on K-L decays collected in 1997 by the KTeV (E832) experiment at Fermilab. With samples of 1385 K-L-->pi(+/-)mu(-/+)nugamma and 14221 K-L-->pi(+/-)e(-/+)nugamma candidates, we find R-Kmu3gamma=(0.530+/-0.019)% and R-Ke3gamma=(4.942+/-0.062)%. We also examine distributions of photon energy and lepton-photon angle.

引用

页码：012001 / 1

页数：12

共 14 条

[1]

Alavi-Harati A, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.112004

[2]

Alavi-Harati A, 2003, PHYS REV D, V67, DOI [10.1103/PhysRevD.67.012005, 10.1103/PhysRevD.67.1120XX]

[3] A determination of the Cabibbo-Kobayashi-Maskawa parameter |Vus| using KL decays -: art. no. 181802 [J].

Alexopoulos, T ;

Arenton, M ;

Barbosa, RF ;

Barker, AR ;

Bellantoni, L ;

Bellavance, A ;

Blucher, E ;

Bock, GJ ;

Cheu, E ;

Childress, S ;

Coleman, R ;

Corcoran, MD ;

Cox, B ;

Erwin, AR ;

Ford, R ;

Glazov, A ;

Golossanov, A ;

Graham, J ;

Hamm, J ;

Hanagaki, K ;

Hsiung, YB ;

Huang, H ;

Jejer, V ;

Jensen, DA ;

Kessler, R ;

Kobrak, HGE ;

Kotera, K ;

LaDue, J ;

Ledovskoy, A ;

McBride, PL ;

Monnier, E ;

Nelson, KS ;

Nguyen, H ;

Niclasen, R ;

Prasad, V ;

Qi, XR ;

Ramberg, EJ ;

Ray, RE ;

Ronquest, M ;

Santos, E ;

Shanahan, P ;

Shields, J ;

Slater, W ;

Smith, D ;

Solomey, N ;

Swallow, EC ;

Toale, PA ;

Tschirhart, R ;

Wah, YW ;

Wang, J .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :181802-1

[4] Measurements of KL branching fractions and the CP violation parameter |η+-| -: art. no. 092006 [J].

Alexopoulos, T ;

Arenton, M ;

Barbosa, RF ;

Barker, AR ;

Bellantoni, L ;

Bellavance, A ;

Blucher, E ;

Bock, GJ ;

Cheu, E ;

Childress, S ;

Coleman, R ;

Corcoran, MD ;

Cox, B ;

Erwin, AR ;

Ford, R ;

Glazov, A ;

Golossanov, A ;

Graham, J ;

Hamm, J ;

Hanagaki, K ;

Hsiung, YB ;

Huang, H ;

Jejer, V ;

Jensen, DA ;

Kessler, R ;

Kobrak, HGE ;

Kotera, K ;

LaDue, J ;

Ledovskoy, A ;

McBride, PL ;

Monnier, E ;

Nelson, KS ;

Nguyen, H ;

Niclasen, R ;

Prasad, V ;

Qi, XR ;

Ramberg, EJ ;

Ray, RE ;

Ronquest, M ;

Santos, E ;

Shanahan, P ;

Shields, J ;

Slater, W ;

Smith, D ;

Solomey, N ;

Swallow, EC ;

Toale, PA ;

Tschirhart, R ;

Wah, YW ;

Wang, J .

PHYSICAL REVIEW D, 2004, 70 (09) :092006-1

[5] Measurements of semileptonic KL decay form factors -: art. no. 092007 [J].

Alexopoulos, T ;

Arenton, M ;

Barbosa, RF ;

Barker, AR ;

Bellantoni, L ;

Bellavance, A ;

Blucher, E ;

Bock, GJ ;

Cheu, E ;

Childress, S ;

Coleman, R ;

Corcoran, MD ;

Cox, B ;

Erwin, AR ;

Ford, R ;

Glazov, A ;

Golossanov, A ;

Graham, J ;

Hamm, J ;

Hanagaki, K ;

Hsiung, YB ;

Huang, H ;

Jejer, V ;

Jensen, DA ;

Kessler, R ;

Kobrak, HGE ;

Kotera, K ;

LaDue, J ;

Ledovskoy, A ;

McBride, PL ;

Monnier, E ;

Nelson, KS ;

Nguyen, H ;

Niclasen, R ;

Prasad, V ;

Qi, XR ;

Ramberg, EJ ;

Ray, RE ;

Ronquest, M ;

Santos, E ;

Shanahan, P ;

Shields, J ;

Slater, W ;

Smith, D ;

Solomey, N ;

Swallow, EC ;

Tesarek, RJ ;

Toale, PA ;

Tschirhart, R ;

Wah, YW .

PHYSICAL REVIEW D, 2004, 70 (09) :092007-1

[6]

ANDRE T, 2004, HEPPH0406006

[7] PHOTOS - A UNIVERSAL MONTE-CARLO FOR QED RADIATIVE-CORRECTIONS - VERSION 2.0 [J].

BARBERIO, E ;

WAS, Z .

COMPUTER PHYSICS COMMUNICATIONS, 1994, 79 (02) :291-308

[8] First measurement of the rate K0L→πμνγ [J].

Bender, M ;

Augustin, I ;

Holder, M ;

Schwarze, I ;

Ziolkowski, M ;

Fanti, V ;

Lai, A ;

Musa, L ;

Nappi, A ;

Setzu, MG ;

Moore, RW ;

Munday, DJ ;

Parker, MA ;

Takach, SF ;

White, TO ;

Barr, G ;

Bocquet, G ;

Bremer, J ;

Ceccucci, A ;

Cogan, J ;

Cundy, D ;

Doble, N ;

Fischer, G ;

Funk, W ;

Gatignon, L ;

Gianoli, A ;

Gonidec, A ;

Grafstrom, P ;

Kubischta, W ;

Marzulli, V ;

Kesseler, G ;

Matheys, JP ;

Norton, A ;

Palestini, S ;

Panzer-Steindel, B ;

Schinzel, D ;

Taureg, H ;

Velasco, M ;

Vossnack, O ;

Kekelidze, V ;

Kojevnikov, I ;

Potrebenikov, I ;

Tatichvili, G ;

Tkatchev, A ;

Bertolotto, L ;

Boyle, O ;

Hay, B ;

Mc Kay, NE ;

Oakland, G ;

Parsons, H .

PHYSICS LETTERS B, 1998, 418 (3-4) :411-418

[9] RADIATIVE SEMILEPTONIC KAON DECAYS [J].

BIJNENS, J ;

ECKER, G ;

GASSER, J .

NUCLEAR PHYSICS B, 1993, 396 (01) :81-118

[10] COMMENTS ON RADIATIVE KE3 DECAYS [J].

DONCEL, MG .

PHYSICS LETTERS B, 1970, B 32 (07) :623-&

← 1 2 →