Measurement of the Branching Fraction Br(Lambda_c+ -> p K- pi+)
Measurement of the Branching Fraction Br(Lambda_c+ -> p K- pi+)
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DOI：
10.1103/physrevlett.113.042002
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发表时间：
2013-12
影响因子：
8.6
通讯作者：
T. Aaltonen;B. González;S. Amerio;D. Amidei;A. Anastassov;A. Annovi;J. Antoš;G. Apollinari;J. Appel;T. Arisawa;A. Artikov;J. Asaadi;W. Ashmanskas;B. Auerbach;A. Aurisano;F. Azfar;P. Azzurri;W. Badgett;T. Bae;A. Barbaro-Galtieri;V. Barnes;B. Barnett;P. Barria;P. Bartos;M. Bauce;F. Bedeschi;S. Behari;G. Bellettini;J. Bellinger;D. Benjamin;A. Beretvas;A. Bhatti;M. Binkley;D. Bisello;I. Bizjak;K. Bland;B. Blumenfeld;A. Bocci;A. Bodek;D. Bortoletto;J. Boudreau;A. Boveia;L. Brigliadori;C. Bromberg;E. Brucken;J. Budagov;H. Budd;K. Burkett;G. Busetto;P. Bussey;A. Buzatu;A. Calamba;C. Calancha;S. Camarda;M. Campanelli;M. Campbell;F. Canelli;B. Carls;D. Carlsmith;R. Carosi;S. Carrillo;S. Carron;B. Casal;M. Casarsa;A. Castro;P. Catastini;D. Cauz;V. Cavaliere;M. Cavalli-Sforza;A. Cerri;L. Cerrito;Y. Chen;M. Chertok;G. Chiarelli;G. Chlachidze;F. Chlebana;K. Cho;D. Chokheli;W. Chung;Y. Chung;M. Ciocci;A. Clark;C. Clarke;G. Compostella;M. Convery;J. Conway;M. Corbo;M. Cordelli;C. Cox;D. Cox;F. Crescioli;J. Cuevas;R. Culbertson;D. Dagenhart;N. D’ascenzo;M. Datta;P. Barbaro;M. Dell'Orso;L. Demortier;M. Deninno;F. Devoto;M. d’Errico;A. Canto;B. Ruzza;J. Dittmann;M. D'Onofrio;S. Donati;P. Dong;M. Dorigo;T. Dorigo;K. Ebina;A. Elagin;A. Eppig;R. Erbacher;S. Errede;N. Ershaidat;cc;R. Eusebi;H. Fang;S. Farrington;M. Feindt;J. Fernández;R. Field;G. Flanagan;R. Forrest;M. Frank;M. Franklin;J. Freeman;Y. Funakoshi;I. Furic;M. Gallinaro;J. Garcìa;A. Garfinkel;P. Garosi;H. Gerberich;E. Gerchtein;V. Giakoumopoulou;P. Giannetti;K. Gibson;C. Ginsburg;N. Giokaris;P. Giromini;G. Giurgiu;V. Glagolev;D. Glenzinski;M. Gold;D. Goldin;N. Goldschmidt;A. Golossanov;G. Gomez;G. Gomez-Ceballos;M. Goncharov;O. Gonzãlez;I. Gorelov;A. Goshaw;K. Goulianos;S. Grinstein;C. Grosso-Pilcher;J. Costa;Z. Gunay-Unalan;C. Haber;S. Hahn;E. Halkiadakis;A. Hamaguchi;J. Han;F. Happacher;K. Hara;D. Hare;M. Hare;R. Harr;K. Hatakeyama;C. Hays;M. Heck;J. Heinrich;M. Herndon;S. Hewamanage;A. Hocker;W. Hopkins;D. Horn;S. Hou;R. Hughes;M. Hurwitz;U. Husemann;N. Hussain;M. Hussein;J. Huston;G. Introzzi;M. Iori;A. Ivanov;E. James;D. Jang;B. Jayatilaka;E. Jeon;S. Jindariani;W. Johnson;M. Jones;K. Joo;S. Jun;T. Junk;T. Kamon;P. Karchin;A. Kasmi;Y. Kato;W. Ketchum;J. Keung;V. Khotilovich;B. Kilminster;D. Kim;H. Kim;J. Kim;M. Kim;S. Kim;S. Kim;Y. Kim;Y. Kim;N. Kimura;M. Kirby;K. Knoepfel;K. Kondo;D. Kong;J. Konigsberg;A. Kotwal;M. Kreps;J. Kroll;D. Krop;M. Kruse;V. Krutelyov;T. Kuhr;M. Kurata;S. Kwang;A. Laasanen;S. Lami;S. Lammel;M. Lancaster;R. Lander;K. Lannon;A. Lath;G. Latino;T. LeCompte;E. Lee;H. Lee;J. Lee;S. Lee;Aa;S. Leo;S. Leone;J. Lewis;A. Limosani;C. Lin;J. Linacre;M. Lindgren;E. Lipeles;A. Lister;D. Litvintsev;C. Liu;H. Liu;Q. Liu;T. Liu;S. Lockwitz;A. Loginov;D. Lucchesi;J. Lueck;P. Lujan;P. Lukens;G. Lungu;J. Lys;R. Lysak;R. Madrak;K. Maeshima;P. Maestro;S. Malik;G. Manca;A. Manousakis-Katsikakis;F. Margaroli;C. Marino;K. Matera;M. Mattson;A. Mazzacane;P. Mazzanti;K. McFarland;P. Mcintyre;R. McNulty;A. Mehta;P. Mehtala;C. Mesropian;T. Miao;D. Mietlicki;A. Mitra;H. Miyake;S. Moed;N. Moggi;M. Mondragon;C. Moon;R. Moore;M. Morello;J. Morlock;P. Fernandez;A. Mukherjee;T. Muller;P. Murat;M. Mussini;J. Nachtman;Y. Nagai;J. Naganoma;I. Nakano;A. Napier;J. Nett;C. Neu;M. Neubauer;J. Nielsen;L. Nodulman;S. Noh;O. Norniella;L. Oakes;S. Oh;Y. Oh;I. Oksuzian;T. Okusawa;R. Orava;L. Ortolan;S. P. Griso;C. Pagliarone;E. Palencia;V. Papadimitriou;A. Paramonov;J. Patrick;G. Pauletta;M. Paulini;C. Paus;D. Pellett;A. Penzo;T. Phillips;G. Piacentino;E. Pianori;J. Pilot;K. Pitts;C. Plager;L. Pondrom;S. Poprocki;K. Potamianos;O. Poukhov;F. Prokoshin;Bb;A. Pranko;F. Ptohos;G. Punzi;A. Rahaman;V. Ramakrishnan;N. Ranjan;I. Redondo;P. Renton;M. Rescigno;T. Riddick;F. Rimondi;L. Ristori;A. Robson;T. Rodrigo;T. Rodriguez;E. Rogers;S. Rolli;R. Roser;F. Ruffini;A. Ruiz;J. Russ;V. Rusu;A. Safonov;W. Sakumoto;Y. Sakurai;L. Santi;K. Sato;V. Saveliev;A. Savoy-Navarro;P. Schlabach;A. Schmidt;E. Schmidt;M. Schmidt;T. Schwarz;L. Scodellaro;A. Scribano;F. Scuri;S. Seidel;Y. Seiya;Andrei Yu. Semenov;F. Sforza;S. Shalhout;T. Shears;P. Shepard;M. Shimojima;M. Shochet;I. Shreyber-Tecker
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文献类型：
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作者：
T. Aaltonen;B. González;S. Amerio;D. Amidei;A. Anastassov;A. Annovi;J. Antoš;G. Apollinari;J. Appel;T. Arisawa;A. Artikov;J. Asaadi;W. Ashmanskas;B. Auerbach;A. Aurisano;F. Azfar;P. Azzurri;W. Badgett;T. Bae;A. Barbaro-Galtieri;V. Barnes;B. Barnett;P. Barria;P. Bartos;M. Bauce;F. Bedeschi;S. Behari;G. Bellettini;J. Bellinger;D. Benjamin;A. Beretvas;A. Bhatti;M. Binkley;D. Bisello;I. Bizjak;K. Bland;B. Blumenfeld;A. Bocci;A. Bodek;D. Bortoletto;J. Boudreau;A. Boveia;L. Brigliadori;C. Bromberg;E. Brucken;J. Budagov;H. Budd;K. Burkett;G. Busetto;P. Bussey;A. Buzatu;A. Calamba;C. Calancha;S. Camarda;M. Campanelli;M. Campbell;F. Canelli;B. Carls;D. Carlsmith;R. Carosi;S. Carrillo;S. Carron;B. Casal;M. Casarsa;A. Castro;P. Catastini;D. Cauz;V. Cavaliere;M. Cavalli-Sforza;A. Cerri;L. Cerrito;Y. Chen;M. Chertok;G. Chiarelli;G. Chlachidze;F. Chlebana;K. Cho;D. Chokheli;W. Chung;Y. Chung;M. Ciocci;A. Clark;C. Clarke;G. Compostella;M. Convery;J. Conway;M. Corbo;M. Cordelli;C. Cox;D. Cox;F. Crescioli;J. Cuevas;R. Culbertson;D. Dagenhart;N. D’ascenzo;M. Datta;P. Barbaro;M. Dell'Orso;L. Demortier;M. Deninno;F. Devoto;M. d’Errico;A. Canto;B. Ruzza;J. Dittmann;M. D'Onofrio;S. Donati;P. Dong;M. Dorigo;T. Dorigo;K. Ebina;A. Elagin;A. Eppig;R. Erbacher;S. Errede;N. Ershaidat;cc;R. Eusebi;H. Fang;S. Farrington;M. Feindt;J. Fernández;R. Field;G. Flanagan;R. Forrest;M. Frank;M. Franklin;J. Freeman;Y. Funakoshi;I. Furic;M. Gallinaro;J. Garcìa;A. Garfinkel;P. Garosi;H. Gerberich;E. Gerchtein;V. Giakoumopoulou;P. Giannetti;K. Gibson;C. Ginsburg;N. Giokaris;P. Giromini;G. Giurgiu;V. Glagolev;D. Glenzinski;M. Gold;D. Goldin;N. Goldschmidt;A. Golossanov;G. Gomez;G. Gomez-Ceballos;M. Goncharov;O. Gonzãlez;I. Gorelov;A. Goshaw;K. Goulianos;S. Grinstein;C. Grosso-Pilcher;J. Costa;Z. Gunay-Unalan;C. Haber;S. Hahn;E. Halkiadakis;A. Hamaguchi;J. Han;F. Happacher;K. Hara;D. Hare;M. Hare;R. Harr;K. Hatakeyama;C. Hays;M. Heck;J. Heinrich;M. Herndon;S. Hewamanage;A. Hocker;W. Hopkins;D. Horn;S. Hou;R. Hughes;M. Hurwitz;U. Husemann;N. Hussain;M. Hussein;J. Huston;G. Introzzi;M. Iori;A. Ivanov;E. James;D. Jang;B. Jayatilaka;E. Jeon;S. Jindariani;W. Johnson;M. Jones;K. Joo;S. Jun;T. Junk;T. Kamon;P. Karchin;A. Kasmi;Y. Kato;W. Ketchum;J. Keung;V. Khotilovich;B. Kilminster;D. Kim;H. Kim;J. Kim;M. Kim;S. Kim;S. Kim;Y. Kim;Y. Kim;N. Kimura;M. Kirby;K. Knoepfel;K. Kondo;D. Kong;J. Konigsberg;A. Kotwal;M. Kreps;J. Kroll;D. Krop;M. Kruse;V. Krutelyov;T. Kuhr;M. Kurata;S. Kwang;A. Laasanen;S. Lami;S. Lammel;M. Lancaster;R. Lander;K. Lannon;A. Lath;G. Latino;T. LeCompte;E. Lee;H. Lee;J. Lee;S. Lee;Aa;S. Leo;S. Leone;J. Lewis;A. Limosani;C. Lin;J. Linacre;M. Lindgren;E. Lipeles;A. Lister;D. Litvintsev;C. Liu;H. Liu;Q. Liu;T. Liu;S. Lockwitz;A. Loginov;D. Lucchesi;J. Lueck;P. Lujan;P. Lukens;G. Lungu;J. Lys;R. Lysak;R. Madrak;K. Maeshima;P. Maestro;S. Malik;G. Manca;A. Manousakis-Katsikakis;F. Margaroli;C. Marino;K. Matera;M. Mattson;A. Mazzacane;P. Mazzanti;K. McFarland;P. Mcintyre;R. McNulty;A. Mehta;P. Mehtala;C. Mesropian;T. Miao;D. Mietlicki;A. Mitra;H. Miyake;S. Moed;N. Moggi;M. Mondragon;C. Moon;R. Moore;M. Morello;J. Morlock;P. Fernandez;A. Mukherjee;T. Muller;P. Murat;M. Mussini;J. Nachtman;Y. Nagai;J. Naganoma;I. Nakano;A. Napier;J. Nett;C. Neu;M. Neubauer;J. Nielsen;L. Nodulman;S. Noh;O. Norniella;L. Oakes;S. Oh;Y. Oh;I. Oksuzian;T. Okusawa;R. Orava;L. Ortolan;S. P. Griso;C. Pagliarone;E. Palencia;V. Papadimitriou;A. Paramonov;J. Patrick;G. Pauletta;M. Paulini;C. Paus;D. Pellett;A. Penzo;T. Phillips;G. Piacentino;E. Pianori;J. Pilot;K. Pitts;C. Plager;L. Pondrom;S. Poprocki;K. Potamianos;O. Poukhov;F. Prokoshin;Bb;A. Pranko;F. Ptohos;G. Punzi;A. Rahaman;V. Ramakrishnan;N. Ranjan;I. Redondo;P. Renton;M. Rescigno;T. Riddick;F. Rimondi;L. Ristori;A. Robson;T. Rodrigo;T. Rodriguez;E. Rogers;S. Rolli;R. Roser;F. Ruffini;A. Ruiz;J. Russ;V. Rusu;A. Safonov;W. Sakumoto;Y. Sakurai;L. Santi;K. Sato;V. Saveliev;A. Savoy-Navarro;P. Schlabach;A. Schmidt;E. Schmidt;M. Schmidt;T. Schwarz;L. Scodellaro;A. Scribano;F. Scuri;S. Seidel;Y. Seiya;Andrei Yu. Semenov;F. Sforza;S. Shalhout;T. Shears;P. Shepard;M. Shimojima;M. Shochet;I. Shreyber-Tecker
我们利用KEKB非对称能量e+e-对撞机上的贝儿探测器收集的978 fb^-1的数据样本，首次实现了与模型无关的对λ_c+ -> p K-π +衰变绝对分支分数的测量。通过重建e+e- -> D（*）-anti-pi + Lambda_c+事例中反冲D（*）-anti-pi+系统，确定了Lambda_c+重子的数目.支化率为Br（λ c+ -> pK-pi+）=（6.84 +- 0.24^{+0.21}-0.27}）%，其中第一和第二不确定度分别为统计和系统不确定度。
We present the first model-independent measurement of the absolute branching fraction of the Lambda_c+ -> p K- pi+ decay using a data sample of 978 fb^-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The number of Lambda_c+ baryons is determined by reconstructing the recoiling D(*)- anti-p pi+ system in events of the type e+e- -> D(*)- anti-p pi+ Lambda_c+. The branching fraction is measured to be Br(Lambda_c+ -> p K- pi+) = (6.84 +- 0.24^{+0.21}_{-0.27})%, where the first and second uncertainties are statistical and systematic, respectively.