Analysis of strong decays of charmed mesons D2*(2460), D0(2560), D2(2740), D1(3000), D2*(3000), and their spin partners D1*(2680), D3*(2760), and D0*(3000)

Gupta, Pallavi; Upadhyay, A.

doi:10.1103/PhysRevD.97.014015

Analysis of strong decays of charmed mesons $D_{2}^{} (2460)$ , $D_{0} (2560)$ , $D_{2} (2740)$ , $D_{1} (3000)$ , $D_{2}^{} (3000)$ , and their spin partners $D_{1}^{} (2680)$ , $D_{3}^{} (2760)$ , and $D_{0}^{*} (3000)$

Pallavi Gupta (School of Physics and Materials Science, Thapar University, Patiala—147004 Punjab, India) ; A. Upadhyay (School of Physics and Materials Science, Thapar University, Patiala—147004 Punjab, India)

Using the effective Lagrangian approach, we examine the recently observed charm states $D_{J}^{*} (2460)$ , $D_{J} (2560)$ , $D_{J} (2740)$ , $D_{J} (3000)$ , and their spin partners $D_{J}^{*} (2680)$ , $D_{J}^{*} (2760)$ , and $D_{J}^{*} (3000)$ with $J^{P}$ states $1 P_{\frac{3}{2}} 2^{+}$ , $2 S_{\frac{1}{2}} 0^{-}$ , $1 D_{\frac{5}{2}} 2^{-}$ , $2 P_{\frac{1}{2}} 1^{+}$ , and $2 S_{\frac{1}{2}} 1^{-}$ , $1 D_{\frac{5}{2}} 3^{-}$ , $2 P_{\frac{1}{2}} 0^{+}$ respectively. We study their two body strong decays, coupling constants and branching ratios with the emission of light pseudo-scalar mesons $(π, η, K)$ . We also analyze the newly observed charm state $D_{2}^{*} (3000)$ and suggest it to be either $1 F (2^{+})$ or $2 P (2^{+})$ state and justify one of them to be the most favorable assignment for $D_{2}^{*} (3000)$ . We study the partial and the total decay width of unobserved states $D (1 {{}^{1}F}_{3})$ , $D_{s} (1 {{}^{1}F}_{3})$ and $D_{s} (1 {{}^{1}F}_{2})$ as the spin and the strange partners of the $D_{2}^{*} (3000)$ charmed meson. The branching ratios and the coupling constants $g_{T H}$ , ${\tilde{g}}_{H H}$ , $g_{Y H}$ , ${\tilde{g}}_{S H}$ , and $g_{Z H}$ calculated in this work can be confronted with the future experimental data.

Metadata preview. Preview of JSON metadata for this article.

{
  "_oai": {
    "updated": "2022-03-03T22:34:41Z", 
    "id": "oai:repo.scoap3.org:23286", 
    "sets": [
      "PRD"
    ]
  }, 
  "authors": [
    {
      "raw_name": "Pallavi Gupta", 
      "affiliations": [
        {
          "country": "India", 
          "value": "School of Physics and Materials Science, Thapar University, Patiala\u2014147004 Punjab, India"
        }
      ], 
      "surname": "Gupta", 
      "given_names": "Pallavi", 
      "full_name": "Gupta, Pallavi"
    }, 
    {
      "raw_name": "A. Upadhyay", 
      "affiliations": [
        {
          "country": "India", 
          "value": "School of Physics and Materials Science, Thapar University, Patiala\u2014147004 Punjab, India"
        }
      ], 
      "surname": "Upadhyay", 
      "given_names": "A.", 
      "full_name": "Upadhyay, A."
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Analysis of strong decays of charmed mesons <math><mrow><msubsup><mrow><mi>D</mi></mrow><mrow><mn>2</mn></mrow><mrow><mo>*</mo></mrow></msubsup><mo>(</mo><mn>2460</mn><mo>)</mo></mrow></math>, <math><msub><mi>D</mi><mn>0</mn></msub><mo>(</mo><mn>2560</mn><mo>)</mo></math>, <math><msub><mi>D</mi><mn>2</mn></msub><mo>(</mo><mn>2740</mn><mo>)</mo></math>, <math><msub><mi>D</mi><mn>1</mn></msub><mo>(</mo><mn>3000</mn><mo>)</mo></math>, <math><msubsup><mi>D</mi><mn>2</mn><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math>, and their spin partners <math><msubsup><mi>D</mi><mn>1</mn><mo>*</mo></msubsup><mo>(</mo><mn>2680</mn><mo>)</mo></math>, <math><msubsup><mi>D</mi><mn>3</mn><mo>*</mo></msubsup><mo>(</mo><mn>2760</mn><mo>)</mo></math>, and <math><msubsup><mi>D</mi><mn>0</mn><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math>"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.97.014015"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "97", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "1", 
      "year": 2018
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2020-06-29T15:40:45.821102", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "b8bb8f3cb9e211eaad8602163e01809a"
  }, 
  "page_nr": [
    8
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2018"
    }
  ], 
  "control_number": "23286", 
  "record_creation_date": "2018-06-08T06:05:33.293578", 
  "_files": [
    {
      "checksum": "md5:3b3f23b5793cc61f6a4bcffe235e6042", 
      "filetype": "pdf", 
      "bucket": "ee5a3b7d-7173-4164-a422-3b8edc681830", 
      "version_id": "cacd5774-2195-4a3e-9be6-caf74d2a3389", 
      "key": "10.1103/PhysRevD.97.014015.pdf", 
      "size": 216756
    }, 
    {
      "checksum": "md5:03c40716c1f013918ee525ab5b0abef2", 
      "filetype": "xml", 
      "bucket": "ee5a3b7d-7173-4164-a422-3b8edc681830", 
      "version_id": "766dec1f-6710-4de9-8a4a-0651a620351c", 
      "key": "10.1103/PhysRevD.97.014015.xml", 
      "size": 284694
    }
  ], 
  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
    }, 
    {
      "primary": "Published"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph"
      ], 
      "value": "1801.00404"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "Using the effective Lagrangian approach, we examine the recently observed charm states <math><msubsup><mi>D</mi><mi>J</mi><mo>*</mo></msubsup><mo>(</mo><mn>2460</mn><mo>)</mo></math>, <math><msub><mi>D</mi><mi>J</mi></msub><mo>(</mo><mn>2560</mn><mo>)</mo></math>, <math><msub><mi>D</mi><mi>J</mi></msub><mo>(</mo><mn>2740</mn><mo>)</mo></math>, <math><msub><mi>D</mi><mi>J</mi></msub><mo>(</mo><mn>3000</mn><mo>)</mo></math>, and their spin partners <math><msubsup><mi>D</mi><mi>J</mi><mo>*</mo></msubsup><mo>(</mo><mn>2680</mn><mo>)</mo></math>, <math><msubsup><mi>D</mi><mi>J</mi><mo>*</mo></msubsup><mo>(</mo><mn>2760</mn><mo>)</mo></math>, and <math><msubsup><mi>D</mi><mi>J</mi><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math> with <math><msup><mi>J</mi><mi>P</mi></msup></math> states <math><mn>1</mn><msub><mi>P</mi><mfrac><mn>3</mn><mn>2</mn></mfrac></msub><msup><mn>2</mn><mo>+</mo></msup></math>, <math><mn>2</mn><msub><mi>S</mi><mfrac><mn>1</mn><mn>2</mn></mfrac></msub><msup><mn>0</mn><mo>\u2212</mo></msup></math>, <math><mn>1</mn><msub><mi>D</mi><mfrac><mn>5</mn><mn>2</mn></mfrac></msub><msup><mn>2</mn><mo>\u2212</mo></msup></math>, <math><mn>2</mn><msub><mi>P</mi><mfrac><mn>1</mn><mn>2</mn></mfrac></msub><msup><mn>1</mn><mo>+</mo></msup></math>, and <math><mn>2</mn><msub><mi>S</mi><mfrac><mn>1</mn><mn>2</mn></mfrac></msub><msup><mn>1</mn><mo>\u2212</mo></msup></math>, <math><mn>1</mn><msub><mi>D</mi><mfrac><mn>5</mn><mn>2</mn></mfrac></msub><msup><mn>3</mn><mo>\u2212</mo></msup></math>, <math><mn>2</mn><msub><mi>P</mi><mfrac><mn>1</mn><mn>2</mn></mfrac></msub><msup><mn>0</mn><mo>+</mo></msup></math> respectively. We study their two body strong decays, coupling constants and branching ratios with the emission of light pseudo-scalar mesons <math><mo>(</mo><mi>\u03c0</mi><mo>,</mo><mi>\u03b7</mi><mo>,</mo><mi>K</mi><mo>)</mo></math>. We also analyze the newly observed charm state <math><msubsup><mi>D</mi><mn>2</mn><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math> and suggest it to be either <math><mn>1</mn><mi>F</mi><mo>(</mo><msup><mn>2</mn><mo>+</mo></msup><mo>)</mo></math> or <math><mn>2</mn><mi>P</mi><mo>(</mo><msup><mn>2</mn><mo>+</mo></msup><mo>)</mo></math> state and justify one of them to be the most favorable assignment for <math><msubsup><mi>D</mi><mn>2</mn><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math>. We study the partial and the total decay width of unobserved states <math><mrow><mi>D</mi><mo>(</mo><mn>1</mn><msub><mrow><mmultiscripts><mrow><mi>F</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>1</mn></mrow></mmultiscripts></mrow><mrow><mn>3</mn></mrow></msub><mo>)</mo></mrow></math>, <math><mrow><msub><mrow><mi>D</mi></mrow><mrow><mi>s</mi></mrow></msub><mo>(</mo><mn>1</mn><msub><mrow><mmultiscripts><mrow><mi>F</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>1</mn></mrow></mmultiscripts></mrow><mrow><mn>3</mn></mrow></msub><mo>)</mo></mrow></math> and <math><mrow><msub><mrow><mi>D</mi></mrow><mrow><mi>s</mi></mrow></msub><mo>(</mo><mn>1</mn><msub><mrow><mmultiscripts><mrow><mi>F</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>1</mn></mrow></mmultiscripts></mrow><mrow><mn>2</mn></mrow></msub><mo>)</mo></mrow></math> as the spin and the strange partners of the <math><msubsup><mi>D</mi><mn>2</mn><mo>*</mo></msubsup><mo>(</mo><mn>3000</mn><mo>)</mo></math> charmed meson. The branching ratios and the coupling constants <math><msub><mi>g</mi><mrow><mi>T</mi><mi>H</mi></mrow></msub></math>, <math><msub><mover><mi>g</mi><mo>\u02dc</mo></mover><mrow><mi>H</mi><mi>H</mi></mrow></msub></math>, <math><msub><mi>g</mi><mrow><mi>Y</mi><mi>H</mi></mrow></msub></math>, <math><msub><mover><mi>g</mi><mo>\u02dc</mo></mover><mrow><mi>S</mi><mi>H</mi></mrow></msub></math>, and <math><msub><mi>g</mi><mrow><mi>Z</mi><mi>H</mi></mrow></msub></math> calculated in this work can be confronted with the future experimental data."
    }
  ], 
  "imprints": [
    {
      "date": "2018-01-25", 
      "publisher": "APS"
    }
  ]
}

Published on:: 25 January 2018
Publisher:: APS
Published in:: Physical Review D , Volume 97 (2018)
Issue 1
DOI:: https://doi.org/10.1103/PhysRevD.97.014015
arXiv:: 1801.00404
Copyrights:: Published by the American Physical Society
Licence:: CC-BY-4.0

Fulltext files: